Leak Detection & Repair in London

Vetted & insured engineers Clear pricing before work starts G3-qualified for unvented cylinders No gas work — plumbing only

If your water meter moves with every outlet closed, you have a leak. Our London team confirms it, locates it non-destructively, and quotes the repair from evidence rather than guesswork.

London water notes: London's supply is hard — Thames Water draws heavily from chalk aquifers and the Thames itself, so limescale builds fast on heating elements, shower heads and tap internals. London's stock runs from Victorian and Georgian terraces with generations of altered pipework to high-rise flats with pumped and boosted supplies, and each brings its own failure patterns. Mains supply here is managed by Thames Water.

How non-invasive leak detection works

Each method has a job. Thermal cameras find hot-water and heating leaks fast; acoustic microphones hear mains-pressure leaks through solid floors; capacitance moisture meters map how far the water has travelled and in which direction concentration rises; tracer gas finds weeping joints that make no noise at all. Your London engineer selects the combination that suits the construction and reports what was found before any repair is priced.

Signs you have a hidden leak

Watch for: unexplained increases on a metered water bill, the meter dial moving with every appliance and tap off, damp or musty smells with no visible source, warm spots on solid floors (hot feed or heating loop), lifting laminate or cupping floorboards, low boiler/system pressure that needs regular topping up, and paint or plaster blistering low on a wall. Any two of those together justify a detection survey in London.

Detection to repair, one accountable job

Detection without repair leaves you with a report and a hole in your week. Our London engineers do both: locate, expose the minimum area needed, repair the failed section — soldered, compression or correct plastic fitting — then pressure-test and confirm with follow-up readings that the moisture is drying rather than renewing. London's stock runs from Victorian and Georgian terraces with generations of altered pipework to high-rise flats with pumped and boosted supplies, and each brings its own failure patterns.

Leak detection cost in London

Expect a fixed detection fee from £149 for a typical London property, quoted up front. Because the repair is priced from findings, you avoid the worst outcome in this trade: paying someone to search destructively by the hour. Reports include images and readings suitable for insurance submission.

Frequently asked questions

Can you find leaks in underfloor heating in London?

Yes. Thermal imaging shows the loop layout and the anomaly at the leak point, and pressure testing confirms which circuit is losing water. UFH leak repairs are precise work — locating first is essential.

What causes hidden leaks in London homes?

Corrosion pinholes in ageing copper, failed soldered or compression joints, abraded pipes rubbing on joists, nail and screw punctures from past work, and weeping pushfit connections. London's supply is hard — Thames Water draws heavily from chalk aquifers and the Thames itself, so limescale builds fast on heating elements, shower heads and tap internals.

Which areas of London do you cover?

All of London, including Clapham, Greenwich and Wimbledon, plus surrounding villages and suburbs.

How do you find a leak without ripping up floors?

Acoustic listening equipment, thermal imaging, moisture mapping and tracer gas, used in combination. The point is to prove the location from the surface so any opening-up is minimal and targeted.