Planning a renovation or just want to protect your walls? Noticed damp patches, mould, or a sudden rise in your water bills?
At WEFIX, we specialise in comprehensive leak detection and damp-proofing across London. From advanced thermal imaging and tracer-gas leak detection to full damp assessments, we find hidden issues early and prevent costly damage.
With no call-out fees, clear pricing, and an 18-month guarantee, we make moisture protection simple, thorough, and built to last.
Early action is key – the sooner you spot a hidden leak or damp issue, the easier and more cost-effective it is to fix.
Leak specialists ready to act across Greater London
Thermal imaging, tracer gas and acoustic gear
Fully vetted, insured, and licensed and wear ID
You only pay for the work we complete
“Hidden leaks and damp aren’t just a nuisance – they threaten your home. At WEFIX, we don’t just find the source – we prevent damage and restore confidence. It’s about long-term protection, not just quick fixes.”
– Charlie Mullins OBE, Chairman & Founder
WeFix uses advanced diagnostics and proactive strategies to stop leaks and protect your property:
✔ Thermal Imaging & Leak Detection: Spot hidden pipes and water ingress
✔ Acoustic & Tracer Gas Testing: Precise pinpointing of concealed leaks
✔ Non-Invasive Investigations: Minimal disruption, no damage
✔ Damp & Mould Prevention: Assess causes and apply targeted proofing
✔ Ceiling & Roof Leak Detection: From burst pipes to flashing issues
✔ Water Tank & Cylinder Testing: Inspect loft tanks and immersion heaters
✔ Wall & Floor Moisture Mapping: Identify damp before it worsens
✔ Insurance Reports & Full Reports: Evidence-based findings for claims
For plumbing installation, repairs, or emergencies, check out our dedicated Plumbing Installation, Plumbing Repairs, or Emergency Plumbing pages.
“Lewis came to sort out a structural issue with a boiler and a small drains issue - all sorted to a top professional standard. Lovely service!”
From Clapham to Camden, WEFIX is trusted to track down London’s hidden leaks with speed and precision. Whether it’s damp in the walls or a mystery water bill spike, our engineers deliver accurate results – first time.
“WeFix stepped in and completely turned things around. They quickly diagnosed the real issue - a collapsed pipe - and completed the repair the same day. Efficient, tidy, and done to a high standard.”
Our wider team includes:
✔ Electricians – To make safe water-damaged sockets, lighting, or wiring
✔ Gas Safe engineers – For leaks affecting boilers, cylinders, or heating systems
✔ Builders & Decorators – To repair ceilings, re-plaster walls, or repaint damaged areas
One team. One point of contact. One guaranteed result.
Speak to a real person – not a call centre. We’ll give you a clear time estimate, honest price, and professional service from start to finish.
“Ben and Billy provided an excellent, thoughtful and ingenious solution and worked tirelessly to resolve a complicated situation. Extremely tidy and competent. It was a pleasure to have them in our house.”
Yes – WeFix provides professional plumbing repairs across all of Greater London, including:
Need a plumber near you? Give us a call – chances are, one of our engineers is already working locally.
Common signs include:
Yes – WEFIX offers a complete service. We locate the leak, repair the issue, and, if needed, bring in builders, decorators, or electricians to restore your property fully.
Not always, it could be penetrating damp from outside, rising damp from the ground, or condensation. Our engineers will identify the root cause and recommend the right fix, whether plumbing-related or not.
Absolutely. We can provide detailed reports and images that support insurance claims for water damage and leak-related repairs.
Most inspections take 1-2 hours, depending on the size of the property and complexity of the issue. You’ll get clear feedback and photos of any findings on the same day.
No – WEFIX does not charge for call-outs. You only pay for the investigation and any agreed work carried out.
Yes, many clients book us for peace of mind, especially before buying a home, after building work, or when they notice subtle signs like a faint smell or small damp spot. Catching a leak early can save thousands in future repairs.
