Find it, fix it, put it right
Leak detection & damp in London
Damp patches, a musty smell, bubbling plaster or a water bill that suddenly jumps are all signs of a hidden leak. The sooner it is found, the cheaper it is to fix.
From £175/hr + VAT · weekdays 7am-7pm
Leak detection from WeFix London
WeFix London finds hidden leaks using thermal imaging, tracer gas, acoustic listening and moisture mapping, usually without lifting floors or opening walls. Most inspections take one to two hours, with findings and photos on the day. We then repair the leak and, if needed, our builders, electricians and decorators put the damage right. Reports are available for insurers.
Because we are a multi-trade company, one call covers everything: the leak detection specialist, the plumber or heating engineer who repairs it, and the trades who make good afterwards.
Why choose WeFix for leak detection
Minimal disruption
Non-invasive methods find leaks before anything is opened up.
Same-day findings
Clear feedback and photos on the day of the visit.
Insurance-ready
Evidence-based reports to support water damage claims.
One team
Detection, repair and making good under one roof.
What we cover
Our leak detection services
Detection
- Thermal imaging
- Acoustic leak detection
- Tracer gas testing
- Non-invasive investigations
- Wall and floor moisture mapping
- Ceiling and roof leak tracing
- Water tank and cylinder testing
Repair & reporting
- Leak repair
- Damp and mould assessment
- Insurance reports with photos
- Making good: plastering and decorating
- Electrical make-safe after water damage
Prices
Leak detection rates
Published prices plus VAT. One-hour minimum, then 15-minute increments. Emergencies during normal hours at standard rates.
| Service | 7am - 7pm | 7pm - midnight | Midnight - 7am |
|---|---|---|---|
| Leak detection | £175 | £220 | £390 |
| Service | 7am - 7pm | 7pm - midnight | Midnight - 7am |
|---|---|---|---|
| Leak detection | £220 | £250 | £410 |
Materials supplied by WeFix carry a 30% trade charge. Bank holidays may differ. All rates · Instant estimate
How it works
What happens when you call
Step 1: Call, chat or book online
A real person at our London call centre answers - day or night. Tell us what is wrong and when suits you.
Step 2: Know who is coming
Before arrival we send your engineer's name, photo and van registration. Every engineer is DBS checked and carries photo ID.
Step 3: Diagnosis and a clear price
Your engineer finds the cause and explains the options and cost before starting. Larger jobs get a written estimate.
Step 4: Fixed, tidied, invoiced
Dust sheets and overshoes are used and rubbish removed. Your invoice itemises labour, times and materials. Work is guaranteed for 12 months.
Reviews
From our customers
“Chris F. did a fantastic job again - even working in a last minute request that I had. Super happy on how efficient, calm and meticulous he works. From installing Lvt flooring, to sorting the sub-floor prep or skirting - Chris provides an excellent work.”
“Rob just came out for an emergency call out he fixed the broken tap offer some advice on some other plumbing issues. We had an excellent service and he was so friendly and helpful. Thank you”
“Trevor G was super efficient and repaired our floorboard within 15 minutes. Excellent service, competitive fees, very impressed. Highly recommend.”
Leak detection - customer feedback
Punctual and Knowledgeable
“Easy to schedule an appointment and Tracy was punctual and knowledgeable and fixed our water leak promptly!”
Absolute MVP
“Tracey was fantastic. Came on time and identified the problem very quickly. She was clear in explaining what was going on so we understood. When I came back from holiday to find a major leak, I couldn't have asked for a better resolution to the situation- thank you Tracey, absolute MVP!”
Very efficient and helpful
“Joshua was very efficient and helpful. He did a great job with my leaky tap issues. Many thanks.”
FAQ
Leak detection: your questions answered
How much does a leak detection specialist cost?
Our leak detection specialist rate is £175 per hour from 7am to 7pm on weekdays, £220 from 7pm to midnight and £390 overnight, all plus VAT. There is a one-hour minimum, then billing in 15-minute increments. Larger jobs can be priced as a fixed estimate.
What are the signs of a hidden leak?
Common signs are damp patches on walls or ceilings, unexplained mould or a musty smell, peeling paint, warped flooring or bubbling plaster, a boiler that keeps losing pressure, and a water bill higher than usual. If you notice any of these, a leak detection visit can find the source early.
How long does a leak detection visit take?
Most inspections take one to two hours, depending on the size of the property and how complicated the pipework is. You get clear feedback and photos of any findings on the same day, and a written report if you need one for your insurer.
Is damp always caused by a plumbing leak?
No. Damp can also be penetrating damp from outside, rising damp from the ground, or condensation from everyday living. Our engineers identify the actual cause and recommend the right fix, whether it is plumbing-related or not, so you do not pay for the wrong repair.
Do you work with insurance companies?
Yes. We provide detailed reports and photographs that support insurance claims for water damage and leak-related repairs. Check your policy for "trace and access" cover, which often pays for finding the leak as well as repairing the damage it caused.
Real people, 24/7
Need a plumber or heating engineer?
Call now and a real person at our London call centre will answer. Emergencies attended within one hour, day or night.