Plain-English Overview: Where Responsibility Changes Hands
The quick rule of thumb: you pay for leaks inside your home and on your private land. The water company handles leaks in the street and on the public mains. Councils or highways act when water undermines pavements or roads, or when there’s a public safety risk. Local exceptions can apply, especially with shared supplies, flats and private roads.
Landmarks that matter are your internal stop tap, the external stop tap, and your property boundary. Inside the home, you are responsible. Between the boundary and the street main, ownership usually switches at the boundary. Not sure? Check your deeds, ask your water company for pipe maps, or speak to your property manager. See early tell-tales in spot early signs of a water leak in your home, and follow safety steps in our emergency water leak guide.
Know Your Stop Taps And Service Pipes
Your internal stop tap (stopcock) shuts off water to indoor plumbing. It is often under the kitchen sink, in a utility cupboard or near the front entry. Everything after this tap—taps, toilets, showers, boilers and internal pipework—is your responsibility.
Outside, water typically travels from the street main along the water company’s communication pipe to your boundary, then along your private supply pipe to the house. The external stop tap is usually in a small chamber at the pavement or just inside the boundary. Shared drives and flats can complicate this, so photograph your stop taps now and label them. Need help proving the route? Our leak detection services and water mains leak detection specialists can trace and document it for you.
Homeowner Responsibilities: Inside Your Boundary
You are usually responsible for indoor plumbing and appliances: hot and cold feeds, toilets, showers, taps, boilers and central heating circuits. You also pay for leaks on the private supply pipe running from your boundary to your property, and for building fabric issues such as roof leaks and internal ceilings.
Quick checks to prove where the fault lies: turn off the internal stop tap and watch the meter. If it keeps moving, the leak may be on the supply pipe. If it stops, the leak is likely indoors. Listen for hissing, look for damp spots, and check boiler pressure drops. If needed, book professional tracing to avoid unnecessary digging.

This image was generated with AI and may not always represent the product or service exactly.
Water Company Responsibilities: Boundary, Communication Pipe And Street Mains
The water company normally owns the communication pipe from your boundary to the public main, plus the main itself. If water is bubbling up in the road or footway, or you suspect a leak on their side of the boundary, report it to your water company.
They may carry out soundings, pressure tests, and excavations, and fit temporary clamps or barriers. Response times vary with severity and location. Metered customers may receive a discretionary leak allowance after completing repairs on their side—keep evidence. If you need a documented trace to support the case, our water mains leak detection specialists can help.
Council And Highways: Pavements, Verges And Road Surfaces
Highways teams step in when water undermines roads or footways, ice risks appear, or water flows across carriageways. They also deal with blocked gullies and some surface drainage issues. A burst main may involve both the water company and highways for traffic management and public safety.
Report hazards through your council’s or highways authority’s online tool. Provide a precise location pin, photos and a brief flow description (continuous, intermittent, discoloured). If you’re a council tenant, internal repairs are usually through the housing team rather than the water company.
Flats, Shared Supplies And Private Roads: The Tricky Scenarios
Blocks of flats often use common risers, plant rooms and meters. Responsibility may sit with the landlord or management company. Check your lease, building handbook and title plan to confirm.
Shared supply pipes across drives and gardens can mean shared costs. Speak to neighbours early and record meter readings and photos. For private or unadopted roads, ownership under the carriageway can be private. Ask your council for adoption status and your water company for pipe ownership maps to avoid disputes.
How To Diagnose Who To Call: Quick Tests You Can Do
Start with the meter test: turn off your internal stop tap. If the meter still moves, the leak may be on the supply pipe between boundary and house. If it stops, you’re likely dealing with an indoor issue. Pooling near the boundary or pavement points to the supply/communication pipe or main. Loss of boiler pressure suggests a heating leak. Drips that worsen in rain indicate a roof or fabric issue.
Stay safe: avoid standing water near electrics, and call emergency services if there’s subsidence, a sinkhole, or a risk to traffic. If the tests point to a private leak, get rapid help via get a quote for same-day advice.

This image was generated with AI and may not always represent the product or service exactly.
Professional Leak Detection: Fast, Non-Destructive Answers
Track A Leak uses thermal imaging, acoustic listening, tracer gas, correlation and moisture mapping to locate leaks precisely without ripping up floors. We combine multiple methods to confirm ownership and pinpoint the repair location.
On the day, we isolate zones, run calibrated tests and document findings with photos and pressure readings. You get a clear report that speeds up approvals, reduces damage and targets exact repairs. This evidence also supports discussions with water companies and insurers.
Costs, Insurance And Leak Allowances
Many home insurance policies include “trace and access” to find the leak and expose it for repair, subject to limits. Keep invoices, photos, meter snapshots and our report to support any claim. See what’s typically covered in does home insurance cover leak detection.
If you’re metered, your water company may offer a leak allowance after you fix a qualifying leak. Apply quickly, provide proof of repair, and include readings before and after. Maintain records even if you decide not to claim—good evidence helps if costs rise.
Step-By-Step Decision Flow: Who To Call And When
- Water indoors or damp ceilings: shut your internal stop tap. If it stops, arrange a private repair or professional tracing with Track A Leak.
- Meter still spinning with internal tap off: likely the private supply pipe. Book tracing and notify neighbours if supplies are shared.
- Water surfacing in the footway/road or across multiple properties: report to your water company; highways may assist if there’s a hazard.
- Blocked gullies or surface runoff during rain: report to the council/highways (drainage issue, not a clean water leak).
- Emergency (subsidence, electrical risks, traffic hazards): keep people clear and call emergency services, then notify the relevant owner.
If progress stalls, keep momentum with dated photos, meter logs and written updates. Escalate to managers, share evidence, and request timescales.
FAQs
Who Is Responsible For The Pipe Under My Front Garden?
Usually the homeowner owns the pipe from the boundary to the house. Confirm with your water company’s mapping team and your deeds, as shared supplies or private roads can change this.
What If My Leak Is Before My Meter Or I Can’t Find The External Stop Tap?
Call your water company to locate and check the external stop tap and meter position. Track A Leak can trace the line and provide evidence if ownership is unclear.
The Water Is Pooling Near The Pavement. Who Do I Call?
Report it to your water company first. If water is running across the carriageway, also notify the highways authority for safety measures.
Will The Council Fix A Leak On Private Land?
Generally no, unless they are the landlord. Councils handle highway hazards and drainage assets, not private clean water supplies.
How Do I Prove A Private Supply Leak For A Leak Allowance?
Record meter readings, photograph wet areas, save repair invoices, and get a formal report. Provide this evidence when applying to your water company.
Can Professional Leak Detection Prevent Unnecessary Digging?
Yes. Non-destructive methods pinpoint the leak so repair teams open the right spot first time, cutting cost, time and disruption.