Bristol Water leak: who pays to fix it?

When water is pouring out of the ground or your bill suddenly jumps, the first question is whose problem it is. In Bristol, the answer depends on one point: the stop tap at your boundary. Bristol Water owns the pipes on the street side. You own the pipes on your side.

This guide explains where that line falls, what Bristol Water will do, and the help it offers if the leak is yours. For finding a hidden leak, our leak detection page explains how we trace them.

Where the boundary is

A home’s water connection has two parts.

• The communication pipe runs from the water main under the road to the stop tap at your boundary. That stop tap is usually in a small box in the pavement or just inside your front wall. Ofwat says this section is normally the water company’s responsibility.
• The supply pipe runs from that boundary stop tap into your home, up to the first fitting or the inside stop tap. That section is yours.

Everything inside the house, from the kitchen tap to the loft tank, is also yours.

Where the leak is	Who fixes it
Water main in the road	Bristol Water
Pipe from main to the boundary stop tap	Bristol Water
Boundary stop tap itself	Usually Bristol Water
Supply pipe from boundary into the house	You
Inside stop tap and all internal plumbing	You
Shared supply pipe serving several homes	All the homes on it, jointly

A real Bristol area example

In August 2026, BBC Bristol reported that residents in Clevedon faced bills of about £5,000 each to repair a pipe leaking thousands of litres a day. Bristol Water said the leak had run for more than a year and was on a private supply pipe, so the owners were responsible. The Consumer Council for Water said a common mistake is thinking water companies own the pipe all the way to the house, the way gas and electricity firms often do.

That case is an extreme one, but it shows the rule in action. Long or shared supply pipes are where costs climb.

What Bristol Water offers if the leak is yours

Bristol Water’s leak help page lists the support for leaks on underground pipes:

• Up to half an hour of free leak detection, with advice on next steps.
• For homeowners, an automatic £100 subsidy once Bristol Water has confirmed the leak is repaired. One payment per leaking pipe.
• A £250 subsidy if you replace the leaking supply pipe within 21 days, paid once the work is confirmed. Keep your receipts and invoices.
• A leakage allowance for metered customers, which credits your bill for water lost, if the leak is repaired within 21 days.
• Support and a follow up after the first contact.

Bristol Water points customers to WaterSafe, a national register of approved plumbers, to find someone for the repair.

If you get a Leakage Notice

A Leakage Notice is Bristol Water telling you formally that there is a leak on your side. It gives a repair deadline. Bristol Water says some deadlines are shorter than 21 days if a lot of water is being lost. The BBC notes that water companies can take enforcement action as a last resort if leaks are not fixed.

What to do:

1. Check the deadline on the notice.
2. Check your home insurance.
3. If you share a supply, tell your neighbours.
4. Book a plumber.
5. Tell Bristol Water about progress and when the repair is done.
6. Send receipts to claim the subsidy and any leakage allowance.

How to tell if you have a leak

Bristol Water lists these signs:

• Your metered bill has gone up without you using more water.
• Water pressure has dropped.
• Pipes are noisy.
• A damp patch on the ground outside, or a patch of greener grass.

If you are on a meter, a simple test can confirm it. Our guide to a water meter leak test walks through Bristol Water’s method.

Older Bristol homes and supply pipes

Bristol Water says many homes in its area built before the 1970s still have lead supply pipes. Old lead and iron pipes are more likely to leak at joints and bends. Victorian terraces in Bedminster, Easton and Fishponds sometimes share one supply pipe between two or more houses. If a leak shows up on one of those, it can be a joint repair.

When a leaking supply pipe is old lead, replacing it in plastic is often better than patching. That is also when the £250 subsidy applies. Bristol Water’s own page says replacing pipes on your property can cost upwards of £1,000, which is why its current #LeadFreeBristol scheme is worth checking. Our guide to the lead pipe replacement scheme explains who qualifies.

Leaks in Kingswood, Keynsham and beyond

Bristol Water supplies a wide area, from Thornbury in the north to Weston super Mare in the west. That includes Kingswood and Bradley Stoke in South Gloucestershire and Keynsham in Bath and North East Somerset. The same boundary rules and the same help apply across all of it. If you live in BS15, our Kingswood area page covers the homes common there.

What affects the repair cost

We do not publish fixed prices. The price is confirmed after a look at the job. It depends on how long the supply pipe is, what is on top of it (lawn, path, driveway), whether it is lead, whether it is shared, and whether the leak can be found quickly.