We’ve cleared a lot of blocked showers across London over the years, and the ones in Southwark tend to follow a familiar pattern — older pipe runs, tight access, and build-up that’s had time to set hard. This job in Southwark was a good example of what happens when a shower drain is left to worsen gradually rather than caught early.
What the customer was dealing with
The homeowner noticed their shower tray filling up faster than it was draining. At first, it was slow. Then it got to the point where standing water was pooling around their feet during every shower. By the time they called us, they were concerned it might overflow and cause water damage to the floor or the room below.
It’s a worry we hear often. And it’s a valid one — water that can’t drain has to go somewhere.
The tray had been draining slowly for a while. That’s usually a sign the blockage isn’t sitting in the trap itself but further down the waste pipe, where a plunger simply can’t reach.
How we cleared it
When we arrived, we removed the shower waste cover and inspected the trap first. As suspected, the blockage wasn’t sitting at the surface — it was deeper in the pipe, compacted with hair and soap residue that had built up over time.
We brought in the Salisnake rotary wire machine for this one. It’s a flexible mechanical cable tool that can reach well beyond the trap and cut through the kind of compacted build-up you can’t shift any other way. We fed the cable into the waste pipe and worked through the obstruction until it broke apart fully.
Once the line was clear, we used a Vax wet vac to pull out all the standing water and debris from the trap — leaving the system properly clean, not just temporarily unblocked.
The whole job was done without removing any tiles or fittings. No unnecessary disruption.
The result
We tested the shower repeatedly at full flow. Water drained instantly every time — no pooling, no hesitation.
Before we left, we cleaned the tray, removed all mess from the area, and spoke to the customer about what had caused the blockage and what they can do to slow future build-up. Simple things, like using a hair catcher over the drain, can make a real difference.
They were relieved. Honestly, most people are — it’s one of those problems that quietly causes a lot of daily stress.
Dealing with a slow shower drain in Southwark?
If your shower is draining slowly or not at all, it’s worth getting it looked at sooner rather than later. These things rarely fix themselves, and the longer it sits, the harder the build-up becomes to shift.
We’re local, we’re available, and there’s no call-out charge. Get in touch with BDS Drainage for honest advice and a fast response.
We’re called to macerator faults fairly regularly across this part of London — properties in West Brompton often have bathrooms that rely on these systems because conventional gravity drainage simply isn’t an option. When this residential call came in, the toilet was completely out of action. Here’s what we found and how we sorted it.
What the problem was
When we arrived, the Saniflo had failed entirely. Waste had backed up into the toilet bowl and the surrounding pipework, leaving the system totally unusable. There was also a blockage further along the waste pipe — which was actually the first thing we needed to deal with. Fitting a new macerator onto a blocked pipe would’ve just caused the replacement unit to fail in exactly the same way.
Space behind the toilet was tight, so we had to work carefully to avoid disturbing existing fittings. The client had been wondering whether the unit could be repaired rather than replaced, and was understandably concerned about smells and the possibility of longer-term damage.
Why replacement was the right call
Once we’d assessed the unit properly, it was clear the internal mechanism had failed beyond repair. Macerators don’t last forever, and patching a failed unit isn’t a reliable fix. A new Saniflo was the correct solution — and the client was relieved to know it would actually resolve the problem properly rather than just delay it.
How we approached the job
We started by isolating the electrics at the fused spur and shutting off the water supply. Before pulling the old unit out, we used a wet vac to empty the failed macerator — skipping that step in a tight space like this one would’ve made the job far messier than it needed to be.
With the old unit removed, we rodded the waste pipe and used chemicals to fully break down the blockage. We weren’t satisfied until the pipe was completely clear and draining freely.
We then fitted the new Saniflo, reconnecting all pipework using new connectors and jubilee clips throughout. Every connection was checked before we restored the electrics at the fused spur.
The result
Once the system was live, we ran multiple flush tests and monitored pump pressure at each stage. The new macerator fired up cleanly, pumped waste away with strong, consistent pressure, and there were no signs of leaks at any of the connections — everything was dry and secure.
Before leaving, we walked the client through what had caused the original failure, how the new unit compared, and a few straightforward tips to help avoid a repeat down the line. They were delighted to have the toilet functioning again and commented on how differently — and how much more smoothly — the new pump sounded.
Got a macerator fault in West Brompton or nearby?
Whether it’s a failed unit, an unusual smell, or a system that’s stopped pumping properly, we cover West Brompton and the surrounding area regularly. If you’re unsure whether yours needs replacing or just servicing, get in touch — we’ll give you an honest assessment of what we find.
Chelmsford properties — particularly the older terraced and semi-detached houses you’ll find across much of the city — can throw up some genuinely stubborn drainage problems. This was one of them. A customer contacted us with both manholes completely backed up, a system full of wipes and compacted waste, and a real worry that things were about to get a lot worse.
The problem: blocked manholes and a risk of garden flooding
When we arrived, it was clear this wasn’t a straightforward blockage. Both inspection chambers were completely full — not just slow-draining, but entirely stopped. Every time water was used inside the property, it had nowhere to go.
The customer was understandably concerned. The chambers were sitting right next to the garden, and with the system under that kind of pressure, overflow was a genuine risk. They were also worried about what the blockage might be doing to the pipework underneath.
What we found inside the chambers
Once we lifted the covers and had a proper look, the cause was obvious. Both chambers were packed with a dense mix of wet wipes, sludge, and thick scale — the sort of build-up that doesn’t happen overnight. The compaction was heavy throughout, and with access being tight, it wasn’t a case of simply jetting and walking away. The blockage needed breaking down first before any water could get through.
How we cleared it
We started by working through the debris by hand — breaking apart the wipe and sludge build-up, clearing out both chambers, and getting the system to a point where jetting was actually going to be effective.
Jetting and descaling to restore full flow
Once the bulk of the waste was out, we brought in the high-pressure jetter to work through the remaining obstruction inside the pipes. We also used descaling tools and rods to tackle the heavier scale that had accumulated along the pipe walls. This kind of build-up restricts flow even after the main blockage is cleared, so it’s worth dealing with properly rather than leaving it to cause problems again in six months.
We worked through the system methodically until the water was running through cleanly from one end to the other.
The result
Both chambers were cleared out, the scale was gone, and the drainage system was flowing freely again. We ran water through to demonstrate the flow to the customer directly — no backing up, no standing water, just a properly working drain.
They were relieved to see it sorted so quickly, and appreciated that we’d left everything clean and tidy rather than just packing up and heading off.
Work photos
Dealing with a blocked drain in Chelmsford?
If you’ve got manholes backing up, slow-draining chambers, or any kind of blockage you’re not sure about, we’re happy to take a look. We work across Chelmsford and the surrounding Essex area regularly, and we’ll give you a straight answer about what’s going on and what it’ll take to fix it.
Shoreditch is one of those parts of London where the surface looks modern but the infrastructure underneath often tells a different story. Converted warehouses, refurbished office buildings, exposed brick — and beneath it all, drainage systems that weren’t designed with today’s busy commercial environments in mind. This job was a good example of that.
The problem — a damaged manhole cover inside a working office toilet
A commercial client in Shoreditch got in touch after noticing their internal manhole cover had become damaged. It wasn’t in a yard or a plant room — it was sitting in the middle of a toilet floor used by office staff every day.
That changes things. You can’t leave an uneven or broken cover in a space like that. It becomes a trip hazard, it looks wrong, and it raises real concerns about safety. The client needed it sorted quickly, but they also needed the disruption kept to a minimum. The toilet had to be back in use as soon as possible, and the finished result had to be neat — not a patch job that would stick out from the rest of the floor.
There were three things they were most concerned about:
The surrounding floor tiles being damaged during the work
The new cover sitting proud or uneven once reinstated
The toilet being out of action for longer than necessary
All fair concerns, and ones we took seriously from the start.
How we approached it
The first step was carefully breaking out the floor around the existing manhole using specialist cutting and breaking tools. The idea here is to minimise collateral damage — you’re working in a tight space, close to tiles and finishes that need to stay intact, so you can’t just go in heavy-handed.
Once the old cover and frame were removed, we set a new recessed manhole frame to the correct height. Getting this right matters — the frame has to sit at precisely the right level so the cover ends up flush with the surrounding floor once everything is reinstated.
From there, we re-concreted the area using rapid-setting concrete, which allowed us to level and finish the reinstatement without leaving the toilet out of use any longer than necessary. The cover we fitted was a recessed internal type, specifically designed for use in tiled floor environments — so it sits discreetly rather than standing out.
The result
Once the work was finished, the manhole cover sat flush with the floor — level, secure, and visually discreet. The surrounding area was left clean and tidy. We checked everything thoroughly before handover, including confirming the cover was fully secure and safe for daily foot traffic.
The client was pleased with how neat the finish looked and commented on how quickly the job had been completed with minimal disruption to the office.
Need a manhole cover replaced or reinstated in London?
Whether it’s a commercial property in Shoreditch or somewhere else across the city, we’re happy to take a look and let you know what’s involved. No pressure, just practical advice from a team that does this day in, day out.
A local customer was dealing with persistent foul odours and heavy scale buildup in their drainage system. BDS Drainage stepped in to meticulously descale the active pipes without causing downstream blockages, while also replacing the old, leaky manhole with a new airtight cover. The result was a clean, odour-free drainage system and a very happy customer who could finally enjoy their property without the nasty smells.
Introduction
Here at BDS Drainage, we spend our days navigating the intricate network of pipes and drains across London and the South East. Whether it’s a residential property or a commercial site, we frequently encounter older drainage systems that have suffered from years of wear, tear, and heavy mineral buildup. When a local resident contacted us about persistent bad smells around their property, we knew exactly what to look for. Our experience in the area told us that degrading manhole covers combined with scaled-up pipes are a classic recipe for drainage headaches.
The Problem
When our engineers arrived on site, the core issues quickly became apparent. The primary challenge was twofold: descaling a pipe and manhole entry points, and replacing the degraded manhole cover and frame.
The old manhole cover was no longer sealing properly, which was allowing highly unpleasant odours to escape into the surrounding area. Below the surface, the pipes were suffering from severe scale buildup. The tricky part of this specific job was that the pipes were currently in use. When you descale an active pipe, there is a massive risk that bits of broken-off scale will simply fall downstream, creating a much larger and more stubborn blockage further along the network. We needed a strategy that would remove the scale completely without compromising the rest of the drainage system.
The Solution
To tackle the buildup safely, we used a metal chain attached to a rotary machine to efficiently descale the pipe walls. Rather than letting the debris wash away, our engineer carefully used a hammer, chisel, and a manual scooping tool to extract all the awkward bits of scale by hand. This meticulous approach ensured that absolutely no debris travelled downstream to cause future blockages.
Once the pipes were flowing freely, we turned our attention to the source of the bad smells. We broke around the old manhole frame using a hammer drill and carefully removed it. To ensure a perfect, long-lasting seal, we pasted extra-strong, ready-mix cement around the edges and seated the new airtight frame and cover on top. Finally, we filled in the broken sides with more cement and smoothed over the edges for a neat, flush finish. The airtight nature of this new cover was the key to completely stopping the foul odours from escaping.
Result
The transformation was immediate. The pipes were completely clean and running smoothly, and the brand-new manhole was securely in place. Most importantly, the airtight cover instantly solved the bad smell issue that had been plaguing the customer.
Because so much of our work happens underground where the customer can’t see it, our engineer took comprehensive pictures of the descaled pipes and the newly cemented frame to show the final result. The customer was incredibly happy with the transparency, the tidy finish, and the immediate relief from the odours.
Conclusion
This job is a perfect example of why thorough, professional drainage work matters. Simply blasting the pipes might have seemed quicker, but our careful scooping method prevented a secondary blockage, saving the customer time and money down the line. Paired with a properly cemented, airtight manhole cover, the drainage system is now robust, secure, and completely odour-free.
At BDS Drainage, we take pride in doing the job right the first time. We back all our work with a 100-day guarantee and operate 24/7 with no extra weekend charges. If you’re noticing bad smells or suspect your drains are slowing down, don’t wait for a total blockage. Get in touch with our local team today to arrange an inspection or request a free quote.
As a local drainage company operating in and around Camden, we frequently help property owners understand exactly what is going on underground. We know the area well, and we understand how older pipe networks in the borough can sometimes hide underlying issues. When a client recently reached out needing a full overview of their property’s drainage system, we knew our CCTV drain survey would provide the exact clarity they needed.
Investigating the Underground Network
The client was looking for a complete assessment of all the pipes on their property, along with a detailed report of our findings. Without a proper survey, it is virtually impossible to know if there are hidden blockages, root intrusions, or structural weaknesses developing out of sight.
When our team arrived on site in Camden, our first step was to map out the accessible points of the drainage system. We carefully searched around the perimeter of the building to locate all the manhole covers. One by one, we opened each cover to gain access to the network.
Using our specialised CCTV drainage camera, we fed the equipment down each individual pipe. This allowed us to visually inspect the internal condition of the entire system in real time. We meticulously recorded the footage as the camera navigated the pipework, ensuring no section was left unchecked. We monitored for any signs of cracking, scale buildup, or debris that could eventually lead to a severe blockage.
By taking this methodical approach, we gathered HD video evidence of the entire underground system without needing to do any invasive digging or excavation.
Delivering Clear, Actionable Results
Once the survey was complete, we compiled a comprehensive report based on the camera’s findings. The client received all the video recordings taken on the job, alongside a detailed breakdown of the system’s condition. This gave them complete peace of mind and a clear understanding of their property’s infrastructure, allowing them to make informed decisions about any future maintenance.
Secure Your Property with a Local Drainage Survey
Knowing the exact condition of your drains can save you from unexpected and costly emergencies down the line. If you are based in Camden or the surrounding areas and want a clear picture of your property’s pipework, our team at BDS Drainage is ready to help. We provide honest, transparent advice and reliable service.
A residential client in West Ham, London, faced an urgent hygiene emergency when their property’s only toilet began backing up due to a severe blockage. BDS Drainage quickly responded, tracing the hidden issue to a heavily blocked external gully rather than the indoor plumbing. By using professional drainage rods and high-pressure water jetting, our team successfully cleared the obstruction, thoroughly cleaned the area, and restored the home’s sanitation system to full working order.
Introduction
At BDS Drainage, we regularly handle emergency callouts across London, Essex, Kent, and Surrey. When a drainage system fails, it rarely happens at a convenient time, and local residents need a fast, reliable response to protect their homes from water damage and hygiene risks. With decades of combined experience navigating the unique plumbing and drainage setups of East London properties, our engineers know exactly how to diagnose and resolve complex blockages. This case study highlights a recent emergency response in West Ham, demonstrating how our team quickly identifies the root cause of a drainage failure to deliver a safe, lasting solution.
The Problem
We received an emergency callout from a resident in West Ham who was dealing with a highly stressful situation: a blocked toilet that was rapidly backing up into the home. Because this was the only toilet in the property, the situation immediately presented an urgent hygiene issue.
The client was understandably anxious. Not only was the toilet unusable and threatening to overflow, but a highly unpleasant smell had also started to spread throughout the drainage system and into the house. The homeowner feared that the blockage was a symptom of a much deeper, more expensive problem with their underground pipework.
Upon initial observation, it was a tricky scenario. The problem wasn’t actually located inside the toilet itself. Instead, the waste was backing up due to a hidden obstruction further down the line. To restore normal function, we needed to accurately identify the exact location of the obstruction, safely access the pipework, and completely clear the line so the system could drain freely without risking a messy overflow inside the bathroom.
The Solution
When our local engineer arrived at the West Ham property, the first step was to safely inspect the indoor toilet to confirm the blockage wasn’t a localised issue. Once we ruled out a simple trap blockage indoors, we traced the exterior pipework to find the main bottleneck.
The investigation quickly revealed the true culprit: an external gully that was completely choked with a heavy buildup of debris and waste. Because the gully was blocked, everything trying to exit the property had nowhere to go, forcing it back up into the ground-floor toilet.
To address the problem, we opted for a mechanical clearing approach. Our engineer used professional drainage rods to physically break down the initial mass of the blockage. Once the solid obstruction was loosened, we deployed a high-pressure water jetting system. This process thoroughly flushed the gully and the connecting lines, breaking apart the remaining debris and washing it safely into the main sewer.
Because our mechanical equipment is so highly effective, we didn’t need to use any harsh chemical cleaners. After the line was cleared, we thoroughly cleaned the surrounding area around the exterior gully to remove any lingering waste or odors. Finally, we ran multiple flush tests from the inside toilet all the way through to the outside gully, using our inspection tools to verify that water and waste were flowing seamlessly.
Result
The results were immediate and completely resolved the client’s sanitation emergency. The toilet was restored to full working order, and the external gully was left completely cleared and flowing freely. We successfully eliminated the unpleasant smells and removed the immediate hygiene risk from the property.
To ensure complete peace of mind, we tested the toilet and gully several times while the client was present, proving that everything was flowing correctly with zero signs of backing up. We then took the time to show the homeowner the cleared gully, explained exactly what kind of debris had caused the initial backup, and provided actionable advice on how to prevent similar blockages in the future.
The client was incredibly relieved. They expressed their gratitude for how quickly our team identified the hidden problem and fixed it without making a mess indoors. They specifically thanked our engineer for explaining the process clearly and for leaving the exterior property clean and tidy after the job was finished.
Conclusion
This West Ham callout is a perfect example of why proper diagnosis is so critical in drainage emergencies. What appears to be an indoor plumbing disaster is often caused by an exterior blockage. By combining our local experience with professional-grade water jetting equipment, BDS Drainage was able to provide a fast, chemical-free resolution that protected the client’s home and restored their daily routine.
We always back our work with a 100-day guarantee, ensuring our customers have total peace of mind long after we leave the site. If you live in London or the South East and are experiencing slow drains, bad smells, or sudden backups, don’t wait for the problem to overflow.
Are you dealing with a stubborn blockage or a drainage emergency? Call the local experts at BDS Drainage today to request a free, no-obligation quote. Our engineers are available 24/7 to get your system flowing perfectly again.
Living in a period London home certainly has its perks. You get the beautiful high ceilings, the original fireplaces, and a level of character you simply cannot find in a modern build. But underneath those stunning floorboards lies a plumbing system that might have been quietly plotting against you since 1890.
If you constantly find yourself battling slow-draining sinks or unexpected gurgling noises, you are far from alone. Navigating old property drainage London is a common headache for homeowners right across the capital. A combination of ageing materials, historic building quirks, and the demands of modern living means these older pipes require a bit more care and attention.
We’ve spent years unblocking, inspecting, and repairing these historic networks. In this guide, we will explain exactly why your period property’s drains are so prone to backing up, the warning signs you need to watch out for, and what you can do before calling in our team for professional help.
Why older London homes are more likely to block up
It is easy to blame a blocked drain on a rogue wet wipe or too much cooking fat. While those definitely do not help, the root cause in an older property usually comes down to the simple passage of time.
Old pipe materials (and why they don’t age gracefully)
When Victorian and Edwardian builders laid down drainage systems, they relied heavily on clay pipes and cast iron. While these materials were incredibly durable for their time, a century of ground movement and water flow takes its toll. Clay pipes feature rigid joints that become brittle and crack as the earth shifts around them. Meanwhile, cast iron pipes slowly corrode over decades, creating a rough internal surface that eagerly catches loose debris, hair, and soap scum.
Victorian layouts weren’t designed for modern living
Think about how much water a Victorian household used compared to us today. They certainly did not have power showers, dishwashers, and washing machines running daily. Modern households pump a significantly higher volume of water—alongside grease, chemical cleaners, and modern sanitary products—through pipes that were originally designed for a much simpler era. The system simply gets overwhelmed.
Common victorian drains problems we see in London
Every property has its quirks, but we consistently run into the same handful of issues when we get called out to period homes. If your plumbing is acting up, one of these problems is likely the culprit.
Tree root ingress (London’s leafy streets aren’t always drain-friendly)
London is brilliantly green, but those beautiful mature trees lining your street have incredibly thirsty roots. These roots actively seek out moisture, and the tiny cracks in old clay pipe joints provide the perfect entry point. Once inside, the roots grow rapidly, creating a dense net that catches waste and eventually blocks the pipe completely.
Silt, scale and historic muck build-up
Hard water is a notorious issue across the south east. Over several decades, limescale builds up inside your pipes, narrowing the channel that water can flow through. Combine this scale with years of accumulated silt, grease, and general “historic muck,” and your drains become a serious bottleneck just waiting for a blockage.
Poor falls, bellies and shifting ground
For water to flow away properly, pipes need a consistent downward slope, known as a fall. Over the last hundred years, the ground beneath your home has naturally settled and shifted. This movement can cause sections of your pipework to dip, creating “bellies” where water and solid waste pool together instead of washing away.
Misconnected or altered pipework from past renovations
Most older properties have been through several rounds of renovations, extensions, and loft conversions. Unfortunately, not all historical builders were meticulous with their plumbing. We frequently find misconnected pipes, wrong gradients, or old redundant lines left in place that confuse the water flow and cause persistent backing up.
Pitch fibre pipework (the 70s surprise in an older home)
If your period home was updated in the 1960s or 1970s, you might have inherited pitch fibre pipes. Made from wood cellulose impregnated with coal tar, these were introduced as a cheaper, lightweight alternative to clay. Fast forward to today, and these pipes are notorious for blistering, delaminating, and collapsing entirely under pressure.
The tell-tale signs your period property drains are heading for trouble
Drains rarely fail overnight without giving you a few hints first. Catching the problem early can save you from a messy and stressful emergency. Look out for these warning signs:
Slow draining sinks, baths, or showers
Strange gurgling sounds coming from the plughole when you empty a basin
Lingering bad smells inside the house or out near the inspection chamber
Toilets backing up or water rising dangerously high when flushed
An outside gully overflowing with grey water or debris
Unexplained damp patches appearing on your lower walls or near external drains
Repeated blockages that seem to clear up for a week, only to return again
What period property owners can do before calling in the professionals
If you notice the signs of a blockage, your first step is damage control. Stop using the affected fixtures immediately to prevent dirty water from overflowing onto your floors.
You can safely check a few obvious culprits yourself. Wearing rubber gloves, clear away any visible hair from your plugholes and remove wet leaves from your outside gully. If you feel confident, place a bucket under your sink and carefully unscrew the U-bend trap to clear out any trapped food or grime.
However, you must be cautious with DIY remedies in an older home. While pouring boiling water down the sink is great for melting mild grease, it can warp or damage older plastic pipes. More importantly, we strongly recommend against overusing harsh chemical drain unblockers. These corrosive liquids generate intense heat that can eat through the brittle joints of aged clay or cast iron pipes, turning a simple blockage into a structural collapse.
How we diagnose and fix old property drainage issues
When the plunger is not cutting it, it is time to bring in the experts. We pride ourselves on taking the guesswork out of period plumbing.
CCTV drain surveys (the fastest way to remove the guesswork)
We do not believe in digging up your garden just to find a fault. Using state-of-the-art camera equipment, we carry out detailed CCTV drain surveys to see exactly what is happening underground. This footage allows us to instantly spot tree roots, fractures, collapsed pitch fibre, or heavy scale build-up, ensuring we choose the right fix with minimal disruption to your home.
Drain jetting and cleaning
For heavy scale, grease, and silt, our high-pressure water jetting service is incredibly effective. The intense blast of water strips away decades of grime from the internal pipe walls, restoring your historic drains to near-original capacity.
Root cutting and preventative options
If our cameras spot a network of tree roots, we use specialist root cutting equipment to slice them away cleanly. Once the roots are gone, we can treat the area or repair the cracked joint to stop them from coming back next spring.
Repair options: relining vs excavation
Nobody wants their patio or driveway torn up. That is why we specialise in no-dig drain relining. We insert a flexible, resin-coated sleeve into the damaged pipe and inflate it. Once it sets, it creates a tough, watertight pipe within a pipe. We only ever resort to traditional excavation when a pipe has completely collapsed and cannot be saved.
How to reduce repeat drainage problems in a period home
Once we have your drains flowing freely, a little preventative maintenance goes a long way. Use sink strainers in the kitchen to catch food scraps, and avoid pouring cooking oils down the drain—let them cool and put them in the bin instead. Make a habit of clearing autumn leaves away from your outside gullies before they turn into sludge.
If you are currently in the process of buying a period property in London, we highly recommend booking a pre-purchase CCTV drain survey. It is the best way to ensure you aren’t inheriting thousands of pounds worth of hidden plumbing repairs.
Frequently asked questions
Why do blocked drains keep coming back in older houses?
Repeat blockages usually point to a structural issue rather than a simple clog. Things like cracked pipes, tree root ingress, or dipped pipework (bellies) will continuously catch waste until the underlying defect is professionally repaired.
Are victorian drainage pipes different from modern drains?
Yes. Modern drains use smooth PVC plastic with flexible joints that handle ground movement well. Victorian drains rely on rigid clay or cast iron for water and waste pipes, which are much more prone to cracking, corrosion, and root intrusion over time.
Is a CCTV drain survey worth it for an old London property?
Absolutely. It is the only way to accurately assess the condition of pipework that has been buried for over a century. It saves time, prevents unnecessary digging, and highlights minor faults before they become major emergencies.
Do you charge a call-out fee in London?
No, we never charge a call-out fee. We also do not add extra hidden charges for weekend visits. We believe in transparent, local rates for all our customers.
Do you offer emergency drain unblocking out of hours?
Yes, drains do not respect business hours, and neither do we. We provide a 24/7 emergency response service across London and aim to arrive at your property within 90 minutes of your call.
Let us get your period plumbing flowing perfectly again
Dealing with plumbing issues in an older home can feel overwhelming, but a blocked pipe does not have to ruin your week. While older drains are naturally more vulnerable to tree roots, shifting ground, and historic wear and tear, modern diagnostic tools make fixing them easier than ever.
Our engineers at BDS Drainage are experts at untangling the mysteries of period plumbing. We provide fast, reliable, and tidy solutions tailored to your property. Because we do not charge a call-out fee and offer a solid 100-day guarantee on our work, you can trust us to get the job done right the first time.
If your historic drains are causing you grief, request a free quote via our website or get in touch with our team today. We will have your system running smoothly again before you know it.
At BDS Drainage, we were called out to a property in Woolwich where the toilet flush had stopped working properly. Water was constantly running into the toilet pan, which was frustrating for the client and wasting water every time the system failed to shut off.
What was wrong with the toilet?
When we arrived, the main issue was clear. The toilet wasn’t flushing as it should, and the internal mechanism wasn’t closing correctly after use. The client was worried the fault might not be repairable, especially as the flush trigger system was more complicated than a standard exposed cistern setup.
Our first job was to carefully inspect the system and work out exactly which part had failed.
Finding the faulty part
Using screwdrivers, we carefully opened up the flush mechanism and checked the working parts inside. We found the faulty section and initially tried to repair it, as this is often the most sensible first step when a part looks like it may be salvageable.
After testing it properly, it became clear the existing part wasn’t going to hold. A temporary fix would only have caused the same problem to return, so we explained this to the client and confirmed that a replacement part was needed.
Replacing the toilet flush mechanism
Once we had identified the correct part, we sourced a suitable replacement and fitted it into the existing system. Because the flush trigger setup was a little more involved than a basic toilet flusher, it needed to be lined up and tested carefully.
We made sure everything was secured properly before putting the system back together. The aim was simple: the toilet needed to flush cleanly, stop running water into the pan and work reliably for everyday use.
Making sure the job was done right
After the new part was fitted, we tested the toilet several times. The flush worked properly, the water stopped when it should, and there was no constant flow into the toilet bowl.
We also showed the client the new system flushing, so they could see for themselves that the fault had been fixed. This was important, as they had been worried we might not be able to get the job done due to the awkward flush setup.
The client was pleased that their toilet finally worked properly again, and the job was completed without needing to replace the full toilet.
Need help with a faulty toilet or drainage issue?
If your toilet is constantly running, not flushing correctly or you’re unsure what part has failed, BDS Drainage can help. We work across Woolwich and the surrounding London areas, diagnosing the fault properly and giving clear advice before carrying out the repair.
Let’s be honest: discovering a blocked drain is grim. It’s inconvenient, a bit panic-inducing, and it always seems to happen right before you have guests round or at the end of a long, exhausting day. You are staring at a bowl of rising water and wondering if it’s going to overflow onto your lovely bathroom floor.
Take a deep breath. Before you grab the nearest chemical bottle and hope for the best, there are a few safe, immediate steps you can take to limit the mess and hopefully clear the blockage yourself.
In this guide, we’ll walk you through exactly what to do when panic strikes. We’ll show you a few easy DIY methods, point out the things you definitely shouldn’t do, and help you decide if it’s a quick fix or a job for the professionals. And if it turns out to be an absolute emergency, don’t worry. Our team is available 24/7 across London to sort it out for you.
First things first: stop the situation getting worse
Your immediate goal is to prevent a flood, minimise any contamination, and protect your property.
For a toilet, the most important rule is to stop flushing. If the water level is already high, flushing again will only send waste spilling over the rim. Instead, carefully lift the lid off the cistern and tie up the float valve to stop the tank from refilling. Alternatively, turn off the isolation valve located on the pipe behind the toilet.
If you are dealing with a sink, immediately turn off the tap. Grab a bucket or some old towels to catch any drips, and clear out the cupboard underneath to protect your belongings. It’s also incredibly important to unplug any electrical appliances nearby to avoid a serious safety hazard.
Finally, a quick note on hygiene: pop on some rubber gloves, open a window to ventilate the room, and keep pets and kids well out of the way.
Quick checks to work out what kind of blockage you’re dealing with
Before you start plunging, do a bit of quick detective work. Diagnosing the scale of the problem can save you a lot of wasted effort.
Start by checking if the blockage is isolated. Is it just one sink or toilet playing up, or are multiple fixtures draining slowly? If your bathroom sink gurgles when you flush the toilet, or if water backs up into the shower when the washing machine runs, you are likely dealing with a blockage further down your main drain.
You should also check outside. Have a careful look at your outside gully or manhole. If you can see water overflowing, the obstruction is in the exterior drainage system. A local trap blockage (like a clump of hair right under the plughole) is easy to fix yourself. A main drain obstruction, however, almost always requires professional equipment.
Emergency steps for a blocked toilet (the least glamorous section)
Dealing with a blocked toilet is nobody’s idea of a good time, but sometimes a simple DIY approach is all it takes. If you need a blocked toilet London fix, here are the safest methods to try.
The hot water and washing-up liquid method (gentle first)
If you don’t have a plunger to hand, this is your best starting point. Squirt a generous amount of washing-up liquid into the toilet bowl and let it sit for about ten minutes. The soap acts as a lubricant to help loosen the blockage. Next, pour a bucket of hot (but strictly not boiling) water into the bowl from waist height. The pressure and heat can often push a minor blockage right through. Never use boiling water, as the sudden temperature change can crack the ceramic pan.
Using a toilet plunger properly (technique matters)
Not all plungers are created equal. For a toilet, you want a flange plunger (the one with the extra piece of rubber sticking out the bottom), rather than a flat cup plunger. Ensure you get a tight seal over the waste hole, then push down gently to push the air out. Pull up vigorously to create suction. It’s the pulling motion that actually dislodges the blockage, so be patient and repeat the motion a few times.
Toilet auger (if you have one)
A toilet auger (or plumbing snake) is a flexible wire tool designed to navigate the U-bend. Feed the cable down the pan until you feel resistance, then turn the handle to break up the blockage or hook it so you can pull it out. Be incredibly gentle to avoid scratching the ceramic.
What not to do
Please don’t mix different chemical drain unblockers. This can create toxic fumes and even cause a dangerous chemical reaction. Avoid using wire coat hangers, as they will aggressively scratch your toilet and often just compact the blockage further. Finally, if you’ve poured a chemical unblocker down the pan and it hasn’t worked, leave it alone.
If the water is backing up rapidly, or you’re in London and simply need help now, give us a call. We carry the right gear to clear stubborn blockages safely, and we never charge a call-out fee.
Emergency steps for a blocked sink (kitchen and bathroom)
A blocked sink is usually caused by an accumulation of daily grime. If you’re looking for a quick blocked sink fix UK, try these steps before calling for backup.
The obvious-but-easy wins
Start by removing any visible debris from the plughole. In the bathroom, this usually means pulling out a clump of hair and soap scum. In the kitchen, check the U-bend (the curved pipe under the sink). Place a bucket underneath, carefully unscrew the joints, and empty out the sludge. Wash it out in another sink, screw it back tightly, and test the water flow.
Boiling water (when it helps, when it doesn’t)
For a kitchen sink blocked by cooking fats and grease, a kettle full of boiling water can work wonders. Pour it slowly down the plughole to melt the grease. However, if your plumbing uses cheap plastic pipes, stick to hot tap water to avoid softening or damaging the seals.
Bicarb and vinegar (mild approach)
This old-school trick is great for mild build-ups and bad smells. Pour half a cup of bicarbonate of soda down the plughole, followed by half a cup of white vinegar. It will fizz quite a bit. Leave it to work its magic for twenty minutes, then flush it away with hot water.
Plunging a sink
If you are going to plunge a sink, use a standard flat cup plunger. Crucially, block the overflow hole with a wet cloth to ensure you create a proper vacuum. Form a tight seal over the plughole and plunge vigorously up and down.
If the dishwasher or washing machine is backing up
If water is coming up into your sink while an appliance is running, the restriction is further down the shared waste pipe. This usually points to a larger, hardened blockage of food debris, lint, and grease that a simple plunger won’t fix.
If your sink keeps re-blocking despite your best efforts, it’s time to stop guessing. Our team can properly diagnose the underlying issue—often using a CCTV drain survey to see exactly what’s going on underground.
When to stop DIY and call a drainage engineer
There comes a point where plunging just won’t cut it, and persisting might actually cause burst pipes or serious water damage. It’s time to put the tools down and save your weekend if you notice any of these red flags:
Water keeps rising or overflowing despite your best attempts to clear it.
The blockage affects multiple fixtures in the property.
You are dealing with recurring blockages that happen on a weekly or monthly basis.
There is a strong sewage smell, or worse, raw waste is backing up into your bath or shower.
The issue originates from an outside drain or overflowing gully.
You have used chemical cleaners and the water is still standing (please tell us about the chemicals when we arrive so our engineers stay safe).
When you hand the job over to us, we don’t rely on guesswork. We’ll perform a safe inspection to locate the exact cause of the problem. From high-pressure drain jetting to mechanical clearance, we have the heavy-duty equipment required to obliterate stubborn blockages. If the cause isn’t obvious, our CCTV drain surveys can easily spot tree roots, collapsed pipes, or misalignments. We’ll explain exactly what’s happening and leave your home just as clean as we found it.
What to expect when you call us (so it’s not a mystery)
We know that calling a tradesperson can be stressful. At BDS Drainage, we aim to make the process as smooth and transparent as possible.
We provide a 24-hour emergency response across London (and the surrounding counties like Essex, Kent, and Surrey), aiming to be at your door within 90 minutes of your call. We don’t believe in nasty surprises, which is why we have absolutely no call-out charges and no extra fees for weekend visits.
To give you complete peace of mind, all our drain work is backed by a 100-day guarantee. Our engineers are highly trained professionals who treat your property with full respect, ensuring the work area is clean and tidy before they leave.
How to reduce the chances of it happening again
Once your pipes are flowing freely, a little bit of maintenance goes a long way to prevent the panic from happening again.
Toilet: Only flush human waste and toilet paper. “Flushable” wipes, cotton buds, and sanitary products belong in the bin, as they are the leading cause of severe blockages.
Kitchen sink: Never pour cooking fats, oils, or coffee grounds down the sink. Wipe greasy pans with a paper towel before washing them, and invest in a cheap plughole strainer to catch food scraps.
Bathroom sink: Hair is the main culprit here. Use a hair catcher over the shower and sink drains, and flush the pipes with hot water once a week to prevent soap scum from hardening.
If you live in an older property or run a hospitality business, it’s worth considering an annual drain health check. Regular maintenance ensures small issues are caught before they turn into major emergencies.
Frequently asked questions
What’s the first thing I should do if my toilet is overflowing? Stop flushing immediately. Take the lid off your toilet cistern and lift the float arm to stop the tank from filling, or turn off the isolation valve located on the pipe behind the toilet.
Can I use chemical drain cleaner for a blocked toilet or sink? You can, but we generally advise against it for severe blockages. They rarely cut through heavy obstructions, can damage older pipes, and create a toxic hazard if the water remains stagnant.
Why does my sink gurgle when the toilet flushes (or vice versa)? A gurgling sound means air is trapped in your pipes because water can’t flow freely. This almost always indicates a blockage further down the main drainage line, rather than just in the sink trap itself.
How do I know if the blockage is in my home or the main drain? If only one sink is slow to drain, the blockage is usually local to that fixture. If multiple fixtures are backing up, or if flushing the downstairs toilet causes water to rise in the shower, the problem is in the main drain.
What causes recurring toilet blockages in London properties? London’s ageing pipework is prone to scale build-up and tree root intrusion. Recurring blockages are also frequently caused by people flushing wet wipes, which snag on minor pipe defects and gradually build into massive obstructions.
Do you charge a call-out fee for emergency blockages? No, we never charge a call-out fee. You only pay for the work we actually do to fix your drainage issue.
How quickly can you get to me in London? We aim to reach you within 90 minutes of your call, subject to traffic and demand. We’re available 24/7.
Do you work weekends and nights? Yes, our team is on call 24 hours a day, 7 days a week. We don’t add extra charges for weekend or evening call-outs.
Will you need to dig up my garden? Not always. We use advanced no-dig technology and CCTV drain surveys to diagnose and often fix problems from the inside of the pipe. Excavation is an absolute last resort.
Is your drain unblocking work guaranteed? Absolutely. We provide a 100-day guarantee on our drain work, giving you total peace of mind.
Need a professional hand? Get in touch today
If your DIY attempts haven’t worked, or you are dealing with a severe emergency that needs sorting immediately, we are ready to help. At BDS Drainage, we provide fast, professional relief from blocked toilets and sinks across London.
Remember, we operate 24/7, we never charge a call-out fee, and our work is backed by a 100-day guarantee. Don’t let a drainage disaster ruin your day—contact us or request a free quote through our website, and we’ll have your pipes flowing freely in no time.
