Non-invasive leak detection. Found, proven, fixed.Watford, Hertfordshire and London · 07516 755 680
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Where we work

Leak detection across Watford, Hertfordshire and London

We are based in Watford and spend most days in Hertfordshire and London, with jobs further out when someone needs us. Each area page describes the local housing and the leaks it tends to hide, shows the jobs we have photographed there where we have them, and answers the questions people ask before booking.

07516 755 680
Tracer gas detector at an inspection chamber with the lid off on a paved drive
Watford and Hertfordshire
Thermal imaging camera screen showing a hot water pipe glowing inside a wall
WatfordHidden heating pipe traced inside a wall in Woodside, WD25, with thermal imaging.
Engineer scanning a hallway wall with a thermal imaging camera during a leak survey
BusheyHertfordshire · WD23
Tracer gas detector beside an open inspection chamber on a driveway
RickmansworthHertfordshire · WD3
Tracer gas detector sampling along the joints of a wooden floor
Croxley GreenHertfordshire · WD3
Corroded copper pipe found leaking under a floor
Sarratt and ChorleywoodCorroded copper pipe found under a floor in Sarratt, WD3, with tracer gas.
Pressure gauge connected to a radiator to test a central heating system
Kings LangleyHertfordshire · WD4
Thermal camera showing a hot spot on a kitchen floor in front of the cooker
Abbots LangleyHertfordshire · WD5
Underfloor heating manifold with blue pipes during a leak test
RadlettHertfordshire · WD7
Tracer gas detector sampling through a carpet without lifting it
BorehamwoodHertfordshire · WD6
Acoustic leak detector with ground microphone on a tiled floor reading 505
Hemel HempsteadHertfordshire · HP1, HP2, HP3
Thermal image of a heating pipe run under the floor, showing the exact line to open up
St AlbansHertfordshire · AL1, AL2, AL3, AL4
Tracer gas detector beside an open inspection chamber on a driveway
HertfordHertfordshire · SG13, SG14
Tracer gas detector on a window sill with the probe checking a pipe run below
WareHertfordshire · SG12
Thermal camera picking out a pipe under a wooden floor by a doorway
Welwyn Garden CityHertfordshire · AL7, AL8
Tracer gas detector sampling through a carpet without lifting it
HatfieldHertfordshire · AL9, AL10
Acoustic leak detector reading 310 on block paving over a buried supply pipe
StevenageHertfordshire · SG1, SG2
Thermal imaging camera showing the temperature pattern of a hallway floor
HitchinHertfordshire · SG4, SG5
Tracer gas detector sampling along the joints of a wooden floor
Letchworth and BaldockHertfordshire · SG6, SG7
Leaking pipe joint inside a wall with the staining it caused
Bishop's StortfordHertfordshire · CM23
Thermal image of pipework under a bathroom floor beside the toilet
HarpendenHertfordshire · AL5
Tracer gas detector with its probe at a skirting board on a wooden floor
Potters BarHertfordshire · EN6
Acoustic leak detector showing a peak reading of 348 as the microphone passes over the leak
Cheshunt and Waltham CrossHertfordshire · EN7, EN8
Tracer gas detector at an outside drain checking a buried pipe
Hoddesdon and BroxbourneHertfordshire · EN10, EN11
Copper pipes exposed in a small wall chase for a leak repair
Berkhamsted and TringHertfordshire · HP4, HP23
North West London
Leaking pipe joint inside a wall with the staining it caused
NorthwoodLeaking pipe joint found inside a wall in Northwood, HA6, with tracer gas.
Thermal image of pipework under a bathroom floor beside the toilet
StanmoreLeak surveys carried out in Stanmore and Kenton, HA7.
Acoustic leak detector held in the hand showing a reading of 353 in a hallway
HarrowNorth West London · HA1, HA2, HA3
Corroded water pipe leaking in a small excavated trench
EdgwareLeaking supply pipe found under a solid floor in Edgware, HA8, with acoustic detection.
Tracer gas detector with its probe at a skirting board on a wooden floor
PinnerNorth West London · HA5
Thermal camera showing a leaking hot pipe under a kitchen floor
Ruislip and EastcoteNorth West London · HA4
Acoustic leak detection kit with the floor microphone set up over a suspected leak
Uxbridge and IckenhamNorth West London · UB8, UB10
Tracer gas detector at an opened pipe chase in a wall
Wembley and KingsburyNorth West London · HA9, HA0, NW9
Thermal image showing underfloor heating loops running under a wooden floor
Hendon and Mill HillNorth West London · NW4, NW7
Tracer gas detector reading 24 at a herringbone-tiled bathroom wall
Willesden and NeasdenNorth West London · NW10
North London
Tracer gas detector reading 46 in a kitchen
Barnet and Hadley WoodKitchen leak traced in Hadley Wood, EN4, with tracer gas.
Tracer gas detector reading 580 at an inspection chamber on block paving
EnfieldNorth London · EN1, EN2, EN3
Small pipe chase opened in a wall exactly where the leak was located
Palmers GreenLeak pinpointed and exposed through one small wall chase in Palmers Green, N13.
Water spraying from a burst underground pipe exposed in a small excavation
Winchmore HillBurst underground pipe found and exposed in Winchmore Hill, N21, with acoustic detection.
Thermal camera held over a floor with the underfloor heating pipes showing in orange
Muswell HillUnderfloor heating mapped and a floor void inspected in Muswell Hill, N10.
Thermal imaging camera showing the temperature pattern of a hallway floor
IslingtonHallway floor scanned with thermal imaging in Islington, N1.
Bath filled with red dye during a bathroom leak test
West HampsteadBathroom leak traced with a dye test in West Hampstead, NW6.
Thermal camera picking out a pipe under a wooden floor by a doorway
Kilburn and BrondesburyUnderfloor heating loops isolated and a pipe traced under a wooden floor in Brondesbury, NW6.
Pressure test gauges connected to a heating system
FinchleyNorth London · N3, N12
Borescope camera screen showing pipework under a bathroom floor
Golders Green and Hampstead Garden SuburbNorth London · NW11
Tracer gas detector held against a damp patch on a painted wall
Highgate and Crouch EndNorth London · N6, N8
Small pipe chase opened in a wall exactly where the leak was located
Wood Green and TottenhamNorth London · N22, N17, N15
Tracer gas detector at an inspection chamber with the lid off on a paved drive
Southgate and OakwoodNorth London · N14
Engineer scanning a hallway wall with a thermal imaging camera during a leak survey
Camden and Kentish TownNorth London · NW1, NW5
Bath filled with red dye during a bathroom leak test
St John's Wood and Maida ValeNorth London · NW8, W9
West and South West London
Tracer gas detector reading 96 at a pipe chase in a wall
Isleworth and HounslowLeak confirmed at a pipe chase in a wall in Isleworth, TW7, with tracer gas.
Red dye test in a bath to trace where water is escaping
Hampton and TwickenhamBathroom leak traced with dye tests in Hampton, TW12.
Tracer gas detector at an inspection chamber with the lid off on a paved drive
Earlsfield and WandsworthWater main leak traced at an inspection chamber in Earlsfield, SW18, with tracer gas.
Thermal camera showing a hot spot on a kitchen floor in front of the cooker
Ealing and ActonWest London · W5, W3, W13
Green dye test in a bath to trace a leak from the waste or overflow
ChiswickWest London · W4
Tracer gas detector on a lifted floorboard with the pipe exposed between the joists
Hammersmith and FulhamWest London · W6, SW6
Thermal image of a heating pipe run under the floor, showing the exact line to open up
Kensington and ChelseaWest London · W8, SW3, SW10
Acoustic leak detector reading 599 against an outside wall on a mains water leak
Richmond and KewSouth West London · TW9, TW10
Corroded water pipe leaking in a small excavated trench
Kingston and SurbitonSouth West London · KT1, KT2, KT6
Thermal camera in hand showing a hot spot where a heating pipe is leaking
WimbledonSouth West London · SW19, SW20
Tracer gas detector and tools on the floor beside a radiator during a heating leak survey
PutneySouth West London · SW15
South and South East London
Close-up of an acoustic leak detector screen reading 295 over a suspected leak
Stockwell and ClaphamLeak identified in Stockwell, SW9, with pressure testing, acoustic detection and water sampling.
Thermal camera in hand showing a hot spot where a heating pipe is leaking
Kidbrooke and GreenwichHeating leak found and confirmed in Kidbrooke, SE3, with thermal, acoustic and tracer gas detection.
Underfloor heating manifold with blue pipes during a leak test
BromleyUnderfloor heating tested loop by loop at the manifold in Bromley, BR1.
Corroded copper pipe found leaking under a floor
Lewisham and DulwichSouth East London · SE13, SE21, SE22
Acoustic leak detector with ground microphone on a tiled floor reading 505
CroydonSouth London · CR0, CR2
Underfloor heating pipes laid on insulation before the screed
SuttonSouth London · SM1, SM2
Boiler pump and pipework checked for leaks
Beckenham and OrpingtonSouth East London · BR3, BR5, BR6
Corroded section of pipe removed after the leak was found and repaired
Bexley and SidcupSouth East London · DA5, DA14, DA15
East London and Essex
Thermal imaging camera screen showing a hot water pipe glowing inside a wall
Walthamstow and ChingfordEast London · E17, E4
Tracer gas detector reading 580 at an inspection chamber on block paving
Loughton and EppingEssex · IG10, CM16
Close-up of an acoustic leak detector screen reading 295 over a suspected leak
Woodford and IlfordEast London · IG8, IG1
Blue MDPE water main joint found leaking in an excavation
Romford and HornchurchEast London · RM1, RM11, RM12
Underfloor heating manifold with loops isolated to find the leaking circuit
BrentwoodEssex · CM13, CM14, CM15
Close-up of a pressure gauge during a nitrogen test on pipework
HarlowEssex · CM17, CM18, CM19, CM20
Borescope camera screen showing the void under a floor
Hackney and Stoke NewingtonEast London · E8, E9, N16
Tracer gas detector reading 46 in a kitchen
Stratford and LeytonEast London · E15, E10, E11
Buckinghamshire, Berkshire and Bedfordshire
Tracer gas detector reading 96 at a pipe chase in a wall
Chesham and AmershamBuckinghamshire · HP5, HP6, HP7
Thermal camera held over a floor with the underfloor heating pipes showing in orange
Beaconsfield and Gerrards CrossBuckinghamshire · HP9, SL9
Copper supply pipe and stopcock exposed in a neat excavation through a concrete floor
High WycombeBuckinghamshire · HP11, HP12, HP13
Acoustic leak detector held in the hand showing a reading of 353 in a hallway
AylesburyBuckinghamshire · HP19, HP20, HP21
Floor void under a bath opened to show the leaking pipework
MaidenheadBerkshire · SL6
Boiler with the cover off during a heating system leak inspection
Luton and DunstableBedfordshire · LU1, LU2, LU3, LU4, LU5, LU6
Test strip used to identify whether escaping water is mains, heating or waste
BedfordBedfordshire · MK40, MK41, MK42
Further afield
Tracer gas detector at an outside drain checking a buried pipe
Windsor, Datchet and SloughBerkshire · SL3, SL4, SL1
Thermal camera showing a hot spot on a kitchen floor in front of the cooker
AscotHeating leak found under a kitchen floor in Ascot, SL5, with thermal imaging and tracer gas.
Blue MDPE water main joint found leaking in an excavation
Chipping OngarLeaking MDPE water main joint found in Chipping Ongar, CM5, with acoustic detection.
Tracer gas detector on a lifted floorboard with the pipe exposed between the joists
Olney and Milton KeynesCorroded pipe found under a floor in Olney, MK46, with tracer gas and replaced.
Borescope camera screen showing pipework under a bathroom floor
ThamePipework under a bathroom floor inspected by borescope in Thame, OX9.
Floor void under a bath opened to show the leaking pipework
NorthamptonLeak under a bath traced and the floor void opened at the exact point near Northampton, NN7.
Act now

Still losing water? Every day adds to the damage.

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