First understand what changed
Check whether the bill uses an actual reading and whether household use has changed. Visitors, watering, new appliances and a toilet that continually refills can affect consumption. Keep the supplier’s letter and reading dates so the concern can be assessed with a clear timeline.
A moving meter needs context
Where you can safely read your own meter, the supplier’s guidance may help you check for unexpected consumption. Account for appliances and automatic uses. Shared supplies complicate interpretation. A meter registering use can indicate water passing through it, but it cannot tell you where that water is going.
Narrow the possible section
The useful next question is whether the issue lies in an accessible fixture, the internal distribution or a buried incoming supply. Isolation and appropriate checks help structure the search. Specialist acoustic or tracer methods may then help locate a supported leak on a suitable pipe section.
Keep the evidence after the repair
Retain the detection report, invoice, repair information and any subsequent readings. If you wish to ask the water supplier about an allowance or adjustment, follow its own process and eligibility rules. A repair record supports the discussion but does not promise that a supplier will make a credit.
How Leak Seaker can help
Our mains water leak detection starts with the symptoms and relevant history. For an agreed residential job, the £1,750 package includes specialist detection, necessary access, plumbing repair, parts, testing and an Written Trace & Access report, with a one-year workmanship warranty.
Decorative and remedial reinstatement is excluded. Cover and reimbursement depend on your insurer and policy. Commercial instructions are quoted separately.
Explore the £1,750 packageThames Water: identifying leaks. General guidance should be read alongside your own system information or product listing.
