In a Bradford terrace, a drain that serves more than one house is usually not yours to pay for. Since 1 October 2011, most shared drains and lateral drains that connect to the public sewer have belonged to the water company — in Bradford, that is Yorkshire Water — and they clear blockages free of charge. Your own private drain is different: the pipe serving only your home, inside your boundary, is yours to maintain. The fastest test is your neighbours: if their drains are backing up too, the blockage is almost certainly shared. This guide shows how to tell the difference, the safe checks, and UK guide costs for the parts that are yours.
Find your situation first
- Your drains and your neighbours’ drains are backing up: go to what counts as a shared drain?
- Only your house is affected: go to what is causing the blockage?
- You want to know who pays: go to who is responsible for which pipe?
- Sewage is coming back into the house: go to when to stop and call.
- Costs: go to what does it cost?
- When to stop: go to when to stop and call.
What counts as a shared drain?
Four kinds of pipe run under a terraced street, and the name decides who pays. A private drain serves only your property. A lateral drain is the short section of your private drain from your property boundary to the public sewer. A shared drain, also called a private sewer, carries waste from two or more properties. The public sewer is the main pipe, usually under the road.
In a Bradford terrace, each house has its own short drain. Those join a shared run along the backs of the houses, under the back gardens or the ginnel, before it joins the public sewer. So the pipe under your own back garden can be Yorkshire Water’s, because your neighbours’ waste runs through it too.
| Pipe | What it is | Who is responsible | Who pays |
|---|---|---|---|
| Private drain | Serves only your home | You, the homeowner | You |
| Lateral drain | From your boundary to the public sewer | Yorkshire Water, since 1 October 2011 | Yorkshire Water |
| Shared drain (private sewer) | Serves two or more properties | Yorkshire Water, since 1 October 2011 | Yorkshire Water |
| Public sewer | Main sewer, usually under the road | Yorkshire Water | Yorkshire Water |
Yorkshire Water’s own Whose pipe is it? guide sets out the same split with diagrams. The rule of thumb: a pipe that serves only your property and sits inside your boundary is yours. Outside your boundary, or serving more than one property, it is almost certainly the water company’s.
What changed in October 2011
Before 1 October 2011, homeowners were responsible for shared drains and lateral drains, even for sections under a neighbour’s garden or the road. If one collapsed, the repair bill was split between everyone connected to it — sometimes thousands of pounds for a pipe they did not know they owned.
The Private Sewers Transfer, which took effect on 1 October 2011, moved most of this pipework to the water companies — in Bradford, Yorkshire Water. Shared drains and lateral drains connected to the public sewer on 1 July 2011 transferred, whatever condition they were in. Yorkshire Water’s developer services FAQ confirms the split: the homeowner looks after pipes inside the property up to the shared drain, and Yorkshire Water looks after the public sewer network, shared drains and lateral drains outside the boundary.
Three exceptions remain. Homes not connected to the public sewer at all — for example, houses on a septic tank — were not part of the transfer, and a shared drain there is still the joint responsibility of every property on it. Houses built after 2011 may have shared pipework that has not yet been formally adopted, so responsibility can still sit with the homeowners or the developer. And in a block of flats, the drains inside the block often stay private — usually the freeholder’s or the management company’s responsibility.
What is causing the blockage?
Find your symptom in the table. Who pays depends on where the blockage sits, not on what caused it.
| Cause | What you will notice | Safe to check yourself, or engineer job |
|---|---|---|
| Fat, oil and grease | Kitchen sink drains slowly, then stops; often the whole row is slow | Ask neighbours. Clearing a shared run is Yorkshire Water’s job |
| Wet wipes and sanitary items | Toilet flushes weakly; water rises in the bowl, then falls slowly | Stop flushing wipes. Clearing is Yorkshire Water’s job if the pipe is shared |
| Tree roots in clay pipes | Same drain blocks again and again | Engineer job: a CCTV survey finds the roots |
| Collapsed or cracked clay pipe | Repeat blockages in the same place, a dip in the garden, a sewage smell | Engineer job: a CCTV survey confirms the collapse |
Safe checks, in order
Work through these in order. Stop at any step where sewage is coming back, or where you find water near electricity or gas. If you smell gas, leave the property and call the National Gas Emergency Service on 0800 111 999.
- Work out how many fixtures are affected. If only one sink or toilet is slow, the blockage is probably in your own pipe. If every fixture is slow, or water backs up into the bath when the toilet flushes, the blockage is further down the line.
- Ask your neighbours. Knock on the doors either side and ask if their drains are slow. If they are, the blockage is in the shared run — Yorkshire Water’s job. Do not pay a private firm before you have asked.
- Check the lowest drain or gully outside. Lift the grate of the outside gully by the back door. If it is full of standing water, the blockage is downstream of it. Clear leaves and silt from the grate by hand. Do not climb into a manhole or lift a heavy cover on your own.
- Stop using water if sewage is coming back. If sewage is rising into a bath or toilet, stop flushing and stop running taps. Sewage is a health hazard: keep children and pets out, and call the same day.
- Report a shared blockage to Yorkshire Water. Tell them which houses are affected and what you have checked. They clear shared drains free of charge — the cost is already covered by your water bill. If they find the blockage is in your private drain, it comes back to you.
- Do not rod a shared drain blindly. Rods can clear a soft blockage, but forcing them past a hard stop can crack a clay pipe. That turns a free Yorkshire Water clearance into a repair you pay for. If the rods stop, stop with them.
- Get a CCTV survey if the answer is still unclear. A small camera sent down the pipe shows exactly where the blockage sits, so there is no guessing about whose pipe it is. Our guide to a CCTV drain survey explains what it costs and the five signs you need one.
Never climb into a manhole or inspection chamber. Never lift a heavy cover alone. Never keep rodding a drain that keeps blocking in the same place. Never pour caustic drain cleaner into a shared drain: it makes the drain dangerous for whoever works on it next. Never dig to find the drain yourself: gas, water and electric services run underground. Gas work is for a Gas Safe registered engineer only.
When to stop and call
Call Yorkshire Water first if more than one house is affected, if sewage is coming up outside, or if the blockage is in the road. Call a drainage engineer if only your house is affected, if Yorkshire Water says the blockage is on your private drain, or if it keeps blocking after it has been cleared.
Call the same day if sewage is backing up into the house, if a sewage smell inside will not clear, or if a manhole cover in the street is lifting or overflowing. A shared drain that keeps blocking can be a cracked pipe, and that needs a camera, not another clear-out. For the private section of your drains, call a sewer line repair in Bradford visit and say which houses are affected and whether it has come back before. If the problem is a blocked outside drain or gully, our drainage services in Bradford cover that too. You can also call Plumber Bradford Pros on 01274 041977.
If you rent, tell your landlord or letting agent first. In most tenancies the landlord is responsible for keeping the drains in repair, and should arrange the investigation. If a tenant caused the blockage — wipes or fat down the drain — the landlord may be able to recover the cost. Either way, a tenant should not pay a private firm to clear a shared drain that Yorkshire Water clears for free.
What does it cost?
Every figure below is a UK guide average from Checkatrade’s drain unblocking cost guide, last updated in October 2026. The first line matters most: a shared drain blockage costs you nothing, because Yorkshire Water clears it free of charge.
| Job | UK guide average range | Average |
|---|---|---|
| Shared drain or lateral drain cleared by Yorkshire Water | Free | £0 |
| Standard call-out (private drain) | — | £60 |
| Emergency call-out (private drain) | — | £180 |
| Drain rodding (private drain) | £75 to £150 | £85 |
| Drain jetting (private drain) | £120 to £250 | £185 |
| CCTV survey, basic (private drain) | £150 to £300 | £200 |
| CCTV survey with full report (private drain) | £250 to £400 | £300 |
| Drain relining, per linear metre | £85 to £150 | £110 |
Checkatrade’s guide also gives a drain specialist’s day rate of around £275 — ask whether the call-out fee is included in the quote. The full breakdown is in Checkatrade’s drain unblocking cost guide. If a shared drain has failed and caused flooding inside your home, check your home insurance policy first: some policies cover trace and access costs and damage from drain failures. Keep photos and notes.
Why this matters more in Bradford terraces
Much of Bradford is Victorian and Edwardian terraces and back-to-backs, built with shared drains by design. A single clay-pipe run often collects waste from four, six or eight houses. Those pipes are now a hundred years old or more: clay cracks, joints open, and tree roots get in. When one house pours fat down the sink, the whole row feels it.
The layout makes the boundary hard to see. The shared run usually sits under the back gardens or the ginnel, not under the road, so it looks like your pipe. It is not, as long as it serves more than one house and connects to the public sewer. That is why the neighbour check matters so much here: two slow drains on the same row is the clearest sign the blockage is shared.
Prevention: keep a shared drain clear
- Never pour fat, oil or grease down the sink. Let it cool, scrape it into the bin, and wipe the pan first.
- Only flush the three Ps: pee, poo and toilet paper. Wet wipes, even ones labelled flushable, do not break down and catch on rough clay joints.
- Clear leaves from the outside gully in autumn. Fallen leaves collect around the grate, and a blocked gully is often the first sign of trouble.
- Get a CCTV survey if the same drain blocks twice. A repeat blockage usually means a cracked pipe, roots or a dip. A camera finds it before it becomes a collapse.
Frequently asked questions
How do I know if a drain is shared or private? Ask your neighbours first. If their drains are affected too, the blockage is in a shared pipe. A pipe serving only your home, inside your boundary, is yours. A pipe serving more than one property, or outside your boundary, is almost certainly Yorkshire Water’s.
Who pays to unblock a shared drain in Bradford? Yorkshire Water pays. Since 1 October 2011, shared drains and lateral drains have belonged to the water company, and they clear blockages free of charge. A blockage in your own private drain is yours to pay for.
My neighbour’s drain is blocked and mine is fine. Is it my problem? Not if the blockage is in the shared run. A shared drain is Yorkshire Water’s responsibility even if only one house is showing symptoms. Tell your neighbour to report it to Yorkshire Water, and check your own drains too.
What if Yorkshire Water says the blockage is on my private drain? Then it comes back to you, and a private engineer clears it. Ask exactly where the blockage was found, and consider a CCTV survey for proof before you pay.
Can I be charged if my neighbour caused the blockage? No, not for a shared drain. If the pipe is shared, Yorkshire Water clears it whatever caused it, and you do not pay. If the blockage is in your own private drain, you pay even if the cause came from next door — keep notes and photos.
Plumber Bradford Pros, 164 Dyson Street, Bradford BD9 4DE. Call 01274 041977 if your shared drain keeps blocking and you need help working out whose pipe it is.
