LeakHunter UK finds hidden water leaks using thermal imaging, trace gas, and acoustic detection—without destroying your property. Under-floor heating leaks, buried supply pipes, slab leaks. We pinpoint the exact location so plumbers dig once in the right spot.
Survey today. Leak found tomorrow. Targeted repair (not guesswork).
FLIR thermal cameras detect temperature differences where water escapes. Hydrogen trace gas injected into pipes shows leak locations. Acoustic sensors hear water escaping under concrete. Insurance-approved reports. No find, no fee on some services.
Find leaks without ripping up your entire house
FLIR thermal camera detects temperature differences (water evaporating = cooling effect). Finds leaks under floors, behind walls, in ceilings. Takes 2-4 hours to survey house. £250-400. Shows exact location on thermal image. Insurance accepts this as proof. Works best on central heating leaks (hot water shows clearly).
Inject 5% hydrogen + 95% nitrogen mix into isolated pipe section. Hydrogen (smallest molecule) escapes through tiniest leak. Sniffer probe detects it at surface. Pinpoints leak under concrete slabs, tarmac driveways, buried mains. Takes 3-5 hours. £350-600. Essential for underfloor heating leaks (can't see with thermal).
Ground microphones + correlating software hear water escaping under pressure. Works on mains supply pipes (pressurised). Pinpoints leak along 50m+ pipe runs. Takes 2-3 hours. £300-500. Water companies use this method. Detects leaks 2m underground. Useless on unpressurised waste pipes (no sound).
UFH leaks (pipes under screed) are nightmare—can't see, can't hear easily. We pressure-test each zone, inject trace gas, use thermal imaging. Takes 4-6 hours. £500-800. Report shows which zone/loop leaking. Plumber lifts 1 tile in right spot instead of whole floor. Saves £3k+ excavation.
Systematic check of all pipework: hot/cold supply, central heating, radiators. Pressure-test each system, moisture meter damp areas, thermal scan. Takes 3-4 hours. £280-450. Finds dripping isolator valves, weeping compression fittings, pinhole corrosion in copper pipes. Written report for insurance.
Water meter spinning when all taps off = leak between meter and house. Acoustic detection along buried pipe route. Marks exact dig location with spray paint. Takes 2-3 hours. £300-500. You're responsible for pipe on your property (not water company). Leak wastes 400+ litres/day = £250/month Thames Water charges.
Find it fast, fix it once (not dig everywhere hoping)
Tell us what's happening and where you think it is