Plumbing · West Kensington, London
Blocked Drains in West Kensington
In July 2007 a single storm flooded about 1,700 properties across Kensington and Chelsea and Hammersmith and Fulham, and West Kensington was among the places it hit. The cause was Counter's Creek, a small river long since turned into a sewer, filling faster than it could empty. [The Trusted Plumber West Kensington](/) takes drain calls on 07460 069834, and homes here live with that history.
A blocked drain in W14 is therefore not only a matter of fat and wipes. It can be your own waste pipe, a branch you share with the flat next door, or a public sewer that has filled in a downpour and pushed back up your gully. Each is cleared a different way, and each has a different person responsible, which is why the first job is working out where the blockage sits.
We do not employ drain crews. A partner company from our network, independently owned and local, attends, finds the blockage, quotes in writing and clears it. Published London guides put manual clearing at about £100 to £180 and high-pressure jetting at about £180 to £350, with a blocked toilet at around £100 to £200.
Basement flats are the most exposed. Water finds the lowest outlet, so a shower, toilet or floor gully below street level is where backflow appears first. If sewage is coming up, keep children and pets away, avoid contact, and ring us straight away.
Below is how blockages differ in this part of London, how a clearance is run, and what tells you the problem is the sewer rather than your pipe.
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What We Do
Three Kinds of Blockage in W14
Where the blockage sits decides the method, the cost and who is responsible.
One Fixture: Sink, Basin, Bath or Toilet
If only one outlet is slow, the trap or the short waste pipe is the usual culprit: hair, soap scum, fat or a flushed wipe. The partner clears it with a plunger, auger or hand rods, which is the lower-priced end of the range. A blocked toilet is published at about £100 to £200 in London.
The Household Drain and Gullies
When the washing machine empties and the gully overflows, the blockage is further along the pipe that serves your property. Rodding clears most, and jetting scours grease off the pipe wall. Old clay with cracked joints lets debris catch, so a camera survey is recommended if blockages keep returning.
Shared Branches and the Public Sewer
Where several flats or houses drain into one pipe, a blockage can sit beyond your own boundary. Shared drains and lateral pipes outside the property are generally the water company's responsibility, so the partner will tell you when to report it to Thames Water rather than pay to clear it.
The Benefits
How a Clearance Is Run
The order of work is what keeps the bill honest.
Find Where It Starts
The partner checks which outlets are affected and lifts an inspection cover to see where water stops. That one step separates a fixture blockage, a household drain and a sewer problem, and it prevents you paying for the wrong clearance.
Clear, Flush and Test
Rods or a jetting hose clear the line, then water is run to prove it flows freely. Anything unusual, such as roots or a collapsed section, is shown to you and quoted separately in writing before more work begins.
Say What Caused It
You are told whether it was grease, wipes, roots or a broken pipe, with practical advice on stopping a repeat. If a repair or relining is needed, you decide with the written figure in front of you.
Good to Know
Signs a Drain Is Struggling
Catch these early and the clearance stays small.
Early Warnings
These come before the overflow.
- A toilet that gurgles when the washing machine empties
- Baths and showers that drain more slowly each week
- A sour smell around a gully or an inspection cover
- Water pooling at a floor gully in a basement flat
- Damp patches along the line of an outside drain
Keep Out of the Pipes
The usual causes in homes here.
- Cooking fat poured down the kitchen sink
- Wet wipes, including those labelled flushable
- Cotton buds, sanitary products and nappies
- Hair with no strainer in a shower trap
- Leaves and silt in an outside gully
Why Us
Why Flooding History Matters Here
Where the drains run decides how they fail.
The Counter's Creek Line
The creek became a sewer, and Thames Water's relief proposals considered sites in Mund Street, Gwendwr Road and Barons Court Road. Drains in this part of W14 are part of a stressed catchment, so a surcharge after heavy rain is not always a fault in your own pipe.
Pumped Non-Return Units
After 2007 Thames Water fitted pumped non-return units at more than 600 properties to stop sewage flowing back. If your home has one, tell us on the call; it changes how the visiting plumber checks the line.
A Culverted Brook at Brook Green
The brook at Brook Green was turned into a sewer in 1876, so old culverted watercourses still run beneath this part of town. Digging or relining near them calls for care, which the partner raises in the written quote.
A blocked drain often arrives with another problem, so see emergency plumbing when waste is rising, and leak detection & repair when the damp has no clear source. For toilets that will not flush for other reasons, the toilet repair page covers cisterns and fittings. Browse all services.
What a Blocked Drain Is
A blocked drain is an obstruction in the pipework that carries waste water from your home to the public sewer. It may sit in one fixture's trap, in the pipe serving your property, or in a shared run, and drainage is covered by Building Regulations Part H, which sets falls, access points and materials.
What Affects the Price of Clearing a Drain
Method and Access
Manual clearing is the lower figure and jetting the higher. Reaching a drain in a basement flat or behind a North End Road shop adds time.
Who Is Responsible
If the cause is a public sewer, the partner tells you rather than charging you for work that belongs to someone else.
Basements and Ground-Floor Flats
If your home is below street level, keep a note of where the gully and any inspection cover sit, and clear leaves from outside gullies before autumn storms. When sewage appears, do not mop it up with bare hands, ring us, and tell the partner company if a pumped unit was ever fitted at your address.
Reporting a Sewer Problem
When the blockage turns out to be the public sewer, note the date, the weather and which fixtures backed up, with photographs. The partner company's written note supports your report to Thames Water and helps if a neighbour on the same line sees the same fault.
Booking Without Surprises
When you ring 07460 069834 we read back the address, the fault and the partner company named in the text, and you agree nothing until the written quote arrives. If the figure is not what you expected, you can decline, and ask us to find another partner company.
Frequently Asked Questions
How much does it cost to clear a blocked drain in West Kensington?
Published London guides in 2026 put manual drain clearing at about £100 to £180 and high-pressure jetting at about £180 to £350, with a blocked toilet around £100 to £200. A camera survey is extra. These are guide figures, not our quotes. The partner company confirms its own price in writing after seeing the blockage, and clears only once you agree.
Why do drains in West Kensington back up after heavy rain?
The area sits on the old Counter's Creek line, which was converted into a sewer, and a July 2007 storm flooded about 1,700 properties across the creek's catchment. When the public sewer fills in a downpour, waste can rise through low gullies, toilets and basement outlets. The partner can clear your side, but sewer capacity is the water company's concern.
Who is responsible for a blocked drain, me or Thames Water?
Generally the pipe within your property boundary is yours, while shared drains and lateral pipes beyond the boundary are the water company's responsibility. In a converted house or mansion block the position can be more complicated because several flats may use one run. The partner company works out where the blockage sits and tells you who should deal with it before you pay.
Is there anything I can do before the plumber arrives?
Stop using the affected fixtures and the washing machine, because every flush adds water to a pipe that cannot take it. Keep children and pets away from any sewage and wash hands thoroughly after contact. Do not pour chemical cleaner in, which can damage older pipes and endanger the person clearing it. Then ring 07460 069834.
My basement flat floods from the floor gully when it rains. What causes that?
A floor gully below street level is the lowest outlet in the drainage system, so surcharged sewer water appears there first. After the 2007 flooding, Thames Water fitted pumped non-return units at more than 600 properties to stop that backflow. Tell the visiting plumber if you think you have one, because it changes how the line is tested and cleared.
What is the difference between rodding and jetting?
Rodding pushes flexible rods through the pipe to break up a blockage, which suits most simple obstructions. Jetting uses high-pressure water to scour the pipe wall and remove grease, scale and some roots, and costs more. The partner chooses between them after inspecting the line, and the written quote says which method is proposed and why.
Will you tell me if the blockage is in a shared drain?
Yes, and before you pay for it. If the blockage is beyond your own boundary or serves more than one property, the partner explains that it is likely the water company's job and helps you report it. You may still pay for clearing the section on your side. Photographs and a note of where the blockage sits support your report.
Do I need a camera survey?
Not for a one-off blockage, but it is worth it when a drain keeps blocking, when you suspect roots or a collapse, or when you are buying a flat. A camera shows the pipe's condition and the exact position of any fault, so nothing is dug up on a guess. It is quoted separately so that you can choose.
Can you clear a blocked toilet in a shared mansion block?
Yes, but the partner first checks whether the blockage is in your own branch or in the communal stack. If other flats are also affected, the managing agent needs to be told because the stack belongs to the building. A single toilet that will not clear is usually local to your flat, and that clearance is at the lower end of the range.
Will drain work be allowed in a conservation area?
Clearing a blockage needs no permission, but excavation or external alterations in the Barons Court, Queen's Club Gardens, Gunter Estate and Brook Green conservation areas can come under local controls. Building Regulations Part H covers drainage, and a repair that changes the drain layout may need the council's building control. The partner flags this in the written quote, not on the day.
Do you cover Brook Green and Barons Court for drains?
Yes. The same line covers West Kensington, Barons Court, Olympia, Brook Green, North End and Kensington, and the nearest suitable partner company is matched. Brook Green has an old culverted brook running under it. See our Brook Green page for local notes, or ring 07460 069834 to book. We confirm the postcode on the call, so the right partner is matched first time.
How do I stop the drain blocking again?
Bin fat and wipes instead of flushing or pouring them away, fit a strainer to the shower and kitchen plughole, and keep outside gullies clear of leaves. If the blockage comes back within weeks, the pipe itself may be damaged and a camera survey will show where. We follow up if you report that a clearance has not held.
