Specialist Leak Detection in London
Hidden water leaks, boiler pressure loss & unexplained damp in London homes, flats & business premises. WOW compares the evidence, narrows the source & explains the next step before additional work begins.
We also provide plumbing repairs & installations, heating, drainage, HVAC & commercial mechanical services. Explore our services below.
The right service for your property
From finding a hidden leak to everyday plumbing & heating, explore how WOW can help. We confirm availability & the scope of work when you enquire.
Leak detection
Specialist testing to locate hidden leaks & explain the next step.
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Plumbing
Everyday repairs, installations & urgent plumbing problems.
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Heating & hot water
Support with heating faults, pressure loss & hot water systems.
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Drainage
Drainage investigations, blockages & CCTV surveys.
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HVAC & air conditioning
Air conditioning, ventilation & system maintenance.
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Commercial mechanical
Mechanical services for businesses & managed properties.
Explore servicePlan the Investigation Around Your Property
If the property is a flat or managed building, tell us which rooms are affected & whether there is access to the flat above, communal pipework or a shared meter. We can discuss who needs to be present & what access may be needed before arranging attendance.
For businesses & occupied properties, include opening hours, access restrictions & any requirements for isolating the water or heating. This helps us plan appropriate tests around the people using the building.
Moisture may travel along pipework, floors & service openings. We compare moisture patterns, system behaviour & suitable test results before recommending targeted access.
Find Your Area in London
Choose an area for further service information. Attendance depends on your exact location, the work required & engineer availability.
Not sure whether we cover your address? Check the coverage map or call with your postcode.
Investigate First, Agree the Next Step
We choose relevant methods for the symptoms & system: pressure testing, thermal imaging, moisture mapping, acoustics, borescope inspection, tracer gas analysis & dye testing. Findings are compared before targeted access is recommended.
The fixed leak detection survey includes a professional report. Access, repairs, materials, excavation & reinstatement are separate. CCTV drainage surveys & power flushing are separately priced.
How our leak detection service works →Check the price & terms
Fixed leak detection surveys: £500 + VAT (8am–5pm), £600 + VAT (5pm–9pm) or £700 + VAT (after 9pm). Hourly leak detection starts at £100 per hour + VAT; higher evening & overnight rates apply.
Review the current survey prices, inclusions & No Find, No Fee conditions before booking.
View pricing →Plumbing, Heating & Related Services
Choose the service that matches your enquiry. We confirm the scope & charging arrangement before work begins.
Before You Book
Can you investigate a leak affecting more than one flat?
Contact us with the symptoms & the access available. The source may need to be investigated across more than one property or a communal system. Access arrangements & the investigation scope are agreed before proceeding.
Can the report support an insurance claim?
The report records the investigation & findings, with relevant evidence where available. Insurance cover & acceptance remain subject to your policy & your insurer’s decision.
Real Leak Detection Work in London
See our concealed heating leak investigation in Welling. It shows how tracer gas analysis & borescope inspection helped locate a pipe failure beneath a hallway floor before a separately agreed repair.
Dealing with insured water damage? Ask WOW about managed insurance claims, structural drying & restoration.
Need to find a hidden leak?
Speak to WOW about your symptoms, survey availability & clear fixed pricing. No Find, No Fee subject to terms.