Plumbing · Croydon, London
Blocked Drains in Croydon, London
A drain that has stopped moving is rarely just a drain. It is a toilet that will not clear, a shower tray that fills to the ankles, or a gully by the back door that rises every time the washing machine empties. [Proper Plumber Croydon](/) answers on 07898 116196 at any hour and sends the nearest independently owned partner company that suits the blockage.
The sensible order is look first, clear second, quote third. Published Croydon figures put drain clearing at roughly £90 to £290 a call-out, with rodding around £90 to £150, jetting £150 to £230 and complex jobs with a camera survey £230 to £460. A CCTV survey on its own starts from about £175. The partner company confirms its own price in writing before it starts.
Croydon drains have a particular history. The borough's flood strategy notes that surface water entering the foul sewers through misconnections has overloaded them in storms, and much of the Addiscombe, Woodside and South Norwood housing is Victorian terrace with drains laid when the streets were. Shirley's 1930s semis add leaf fall from Addington Hills into gullies.
Part of the job is working out whose blockage it is. Sewer flooding is Thames Water's to deal with, and the council covers highway and surface-water flooding, so the partner company tells you where the line falls before you pay to clear a pipe that belongs to someone else.
24-hour line · Open 24 Hours
Call now07898 116196Speak to a real person straight away. Or request a free quote
What We Do
Blockages We Match You To
Three places a drain can stop, each cleared in a different way.
One Fixture Only
A single slow sink, bath or basin usually means a blockage in its own trap or waste pipe: hair, soap, fat or a dropped object. The partner company clears it by hand or with a small auger and tells you what caused it. A kitchen sink choked with cooking fat is the most common call, and a strainer is cheaper than the next visit.
The Whole House Backing Up
When toilets, baths and the gully all struggle at once, the blockage is further down the household drain. Rods clear most, jetting scours the pipe wall, and a camera shows whether cracks, roots or a collapsed section are the real cause. In SE25, Chaffinch Brook and South Norwood Lake make wet ground a frequent factor.
A Shared Drain or Public Sewer
Terraces and converted houses often share a run, and a blockage beyond your boundary is not yours to pay for. The partner company clears the section that belongs to you and tells you to report the rest to Thames Water. For anything flooding the house, see our emergency plumbing page.
The Benefits
How We Run a Drain Job
Doing it right means the camera comes before the quote on stubborn jobs.
Check the Access Point
The partner company opens the nearest inspection chamber to see whether it is full, half-full or dry. That one look shows how far along the line the blockage sits.
Clear, Then Prove It
Rodding or jetting follows, then a flow test with clean water confirms the drain moves. Work follows Building Regulations Part H, which governs falls, access and materials.
Camera If It Returns
A drain that blocks twice in a season needs a survey, not a third clearing. The camera shows cracks, offsets and roots, and a repair is quoted separately in writing.
Good to Know
Spotting a Drain Problem Early
Drains complain before they stop.
Early Warning Signs
Catch these and the fix is usually the cheaper one.
- Water that drains more slowly than it did last month
- Gurgling from a toilet when the basin or washer runs
- A sour smell around a gully, manhole or ground-floor bathroom
- Water standing in a gully after the washing machine empties
- A damp or sunken patch along the line of a buried drain
Down the Drain: What to Avoid
The usual cause of a household blockage.
- Cooking fat and oil poured down the kitchen sink
- Wet wipes, even the ones labelled flushable
- Cotton buds, nappies and sanitary products
- Coffee grounds and food scraps
- Hair with no strainer in the shower
Why Us
Drainage Across CR0, SE25 and Shirley
Same fault, different ground.
Addiscombe: Victorian Runs
The East India Estate streets between Addiscombe Road and Lower Addiscombe Road were built after 1858, and drains of that age crack at the joints. Older runs often serve several houses, so ownership needs checking.
South Norwood: Wet Ground
The Environment Agency issued flood warnings for Chaffinch Brook and St James Stream in September 2024. Loaded gullies and leaf fall from the Country Park are the plumbing consequence.
Shirley: Hills and Gullies
Upper Shirley sits on gravel rising to about 140 metres, so surface water runs downhill. Croydon finished flood alleviation on Upper Shirley Road in 2022, but gullies still clog with pine needles and leaves.
A blocked drain can turn into a flooded floor quickly, so keep the emergency plumbing page to hand, and read burst pipe repair if clean water is also escaping. Browse every service we match, or see how Addiscombe and Shirley differ.
What a Blocked Drain Actually Is
A blocked drain is an obstruction anywhere between a fixture and the public sewer. Whether it sits in a trap, the household run or a shared pipe decides both the method used to clear it and who pays.
Drainage in England is governed by Building Regulations Part H, covering falls, access points and materials. Croydon Council runs building control in-house at Bernard Weatherill House, and any drainage alteration beyond a like-for-like repair can fall under it.
What Moves the Price
Method and Access
Rodding a single fixture costs less than jetting a household run. A manhole buried under decking or a patio adds time, and a camera survey is priced on top.
Whether the Fault Is Yours
If the blockage is in a shared sewer, the honest answer is often to report it rather than pay for it. The partner company says so before charging for clearing something that belongs to Thames Water.
Keeping a Cleared Drain Clear
A clear drain stays clear if the cause is dealt with. Bin the wipes, strain the fat, fit a hair catcher and clear gullies of leaves in autumn, particularly near the trees of Woodside Green and Ashburton Park. If the problem returns within weeks, the pipe itself is the likely culprit and a camera survey should come before another clearance.
Flats Near East Croydon
The newer blocks around Cherry Orchard Road and Ruskin Square share stacks and risers, so a blocked waste in one flat can show itself in the flat below. Before anything is cleared, the partner company asks which neighbours are affected and whether the managing agent should be told. If the blockage is in the communal stack, the freeholder or agent is normally the right party to arrange and pay for it, and a clear note on the visit saves arguments later.
When Clearing Is Not Enough
Some drains cannot be cleared into good health. A pipe with a collapsed section, a root-filled joint or an offset that catches paper will block again, and repeated clearing is money spent standing still. In that case the partner company puts a repair or relining option on the written quote beside the cost of clearing, so you can see both and decide with the camera footage in front of you.
Where the repair is excavation, ask whether the permit-zone parking signs on your street affect access, because Croydon publishes controlled parking zones and street signs govern a call-out.
Keep the partner company's text message with its name and your quote together. If a drain misbehaves again after the visit, ring 07898 116196 and quote the date, and we will pick the matter up with them directly.
Frequently Asked Questions
How much does it cost to unblock a drain in Croydon?
A published Croydon price guide puts drain clearing at roughly £90 to £290 per call-out, with a typical figure around £190. Rodding sits at about £90 to £150, jetting £150 to £230, and complex jobs with a camera between £230 and £460. These are indicative published ranges, not our quotes. The partner company confirms its own price in writing once it has seen the blockage.
Do I need a CCTV drain survey?
Not for every blockage. A camera earns its cost when a drain keeps blocking, when you suspect roots or a collapse, or when you are buying a house and want to know what is underground. A Croydon price guide lists surveys from about £175. A camera also avoids digging in the wrong place if a repair is needed, so ask the partner company to explain why it recommends one.
Is a blocked sewer my problem or Thames Water's?
The drain inside your property boundary is yours, while shared drains and the public sewer are Thames Water's responsibility. Croydon Council gives Thames Water's sewer flooding line as 0800 316 9800. The partner company works out where the blockage sits and tells you honestly whether to pay for clearing or to report it, which can save you the whole call-out.
Why does my drain back up when it rains?
Croydon's own flood strategy says that surface water entering the foul sewers through misconnections has overloaded them in storms. When the public sewer fills, waste can rise in low gullies and ground-floor fixtures. The partner company can check the property side and clear it, but a surcharging sewer is Thames Water's to resolve, so report it to them as well.
What is the difference between rodding and jetting?
Rodding pushes flexible rods with a cutting head along the pipe to break a blockage, and suits most simple obstructions. Jetting drives high-pressure water along the pipe and cleans the walls, which helps with grease, scale and some roots. Jetting costs more but gives a more thorough result. The partner company chooses after seeing the pipe.
Can tree roots block a drain in South Norwood or Shirley?
Yes. Roots seek moisture and enter older clay pipes at the joints, then grow into a mat that catches paper and waste. The green ground around South Norwood Country Park and the pines on Addington Hills make this a realistic cause. Jetting can cut roots back, but a camera shows whether the pipe is damaged and needs repair.
My toilet gurgles when the sink drains. Is that serious?
It is an early warning. Gurgling usually means air is being pulled through the water seal because the drain is partly blocked or a vent is obstructed. Clearing the drain at this stage is cheaper than waiting for an overflow. Ring us if it comes with a slow drain or a smell, and we will match a partner company before the toilet actually overflows. Describe which fixtures gurgle and when, as that tells the partner company where along the line to look first.
Are chemical drain cleaners worth trying?
Usually not. Strong chemicals can damage old pipes, harm skin and eyes, and make life harder and less safe for whoever clears the blockage afterwards. They rarely shift a serious obstruction. A plunger first is a better start, and if you have already poured chemicals in, tell the partner company so it can wear the right protection.
Will clearing the drain damage old Victorian pipes?
Done properly, it should not. Rodding and jetting are standard methods and the operator adjusts equipment and pressure for the pipe's condition. Old clay pipes need care, and a camera beforehand shows weak spots. If the pipe looks fragile the partner company should say so, so you can choose between clearing and repairing. That choice, and the price of each route, goes in the written quote before anything is done.
Can you help if the smell comes back after clearing?
A returning smell usually means grease is still stuck to the pipe wall, a trap has dried out or a vent is not working. Running hot water, cleaning the trap and checking the vent often help, and jetting removes build-up that rodding leaves. If it persists, tell us, because it can point to a damaged pipe. See our leak detection & repair page if you suspect water is also escaping.
Do you cover Woodside and East Croydon as well as South Norwood?
Yes. The line covers Croydon, Addiscombe, South Norwood, Shirley, East Croydon and Woodside, and the partner company closest to you that suits the job is sent. Our South Norwood page has more on drainage in SE25, where Chaffinch Brook and South Norwood Lake keep the ground wet. Ring 07898 116196 and give us your postcode, and we will say which partner company is coming.
