Water Leak Repair London
Visible pipe leaks, hidden leaks behind walls, burst pipes, leaking joints — we locate and repair all water leaks across London. 24/7 emergency response, acoustic leak detection, fixed prices.
🚨 Active Leak Right Now? Do This First:
- Turn off the water at the main stopcock — usually under the kitchen sink or at the property entry point
- Switch off electricity at the consumer unit if water is near lights, sockets, or the boiler
- Contain the water with towels and buckets to prevent floor and ceiling damage
- Call us now — we respond 24/7 with no call-out fee: 020 0000 0000
Types of Water Leak We Repair
From a dripping joint under your kitchen sink to a pressurised burst pipe in a ceiling void, we handle every leak scenario across London's diverse housing stock — Victorian terraces, Edwardian semis, 1960s council blocks, and modern new-builds.
Leaking Joints & Fittings
Compression joints, push-fit fittings, and solder joints can fail over time — especially in older London properties where copper has corroded or joints were poorly made. Quick repair without pipe replacement.
£85–£110
Pinhole Leaks
London's hard, slightly acidic water attacks the inside of copper pipes over decades. Pinhole leaks appear as a spray or drip from the pipe body itself. Requires a pipe section replacement rather than just fitting repair.
£95–£150
Burst Pipe (Emergency)
Sudden, high-volume leak from a split pipe — caused by frost, pressure surge, or corrosion failure. Turn off the stopcock immediately. We respond 24/7 with emergency repair kits and replacement pipework.
From £150
Hidden / Concealed Leaks
Leaks inside walls, under floors, or in ceiling voids. Detected with acoustic equipment and thermal cameras. We locate the exact point before cutting, minimising damage to your finishes.
From £150
Under-Floor Leaks
Underfloor heating pipes or supply pipes beneath screed or floorboards. We pressure-test to isolate the zone, then use acoustic detection to pinpoint — avoiding full floor excavation wherever possible.
£180–£350+
Leaking Shower / Bath Waste
Silicone seal failure, cracked waste fitting, or loose trap connection. Water tracks through the floor into the ceiling below. Resealing or waste replacement before structural damage occurs.
£75–£130
Signs You Have a Hidden Water Leak
Hidden leaks are the most damaging — by the time you notice, water may have been tracking through your structure for weeks. In London's dense housing stock, a leak in a flat above will always find someone's ceiling below.
| Sign | What to check |
|---|---|
| Water meter moves with all taps off | Isolate your supply and watch the meter dial for 30 minutes |
| Unexplained damp patches on walls/ceilings | Especially if they grow over time or appear after rain-free days |
| Wallpaper bubbling or paint peeling | Moisture tracked through from a leak behind the surface |
| Musty/damp smell in a room | Mould growing behind walls due to sustained moisture |
| Hot spots on a cold floor | Underfloor heating pipe leak — warmth spreads around the breach |
| Unusually high water bill | Even a small hidden leak can waste hundreds of litres per day |
How We Find Hidden Leaks — Without Destroying Your Home
We use specialist equipment to locate leaks before touching a single wall. Most hidden leaks can be pinpointed to within 30cm — minimising access damage.
Pressure Test
Isolate sections of pipework and monitor pressure drop to confirm a leak exists and roughly where.
Acoustic Listening
Electronic ground microphones pick up the distinctive hiss of pressurised water escaping through a breach.
Thermal Imaging
Thermal camera identifies temperature anomalies — wet areas behind walls and under floors show as cool zones.
Targeted Access
Once confirmed, we make the smallest possible opening to access and repair the leak, then restore the surface.
Water Leak Repair Prices — London 2026
| Repair Type | Time | Price |
|---|---|---|
| Leaking compression joint / push-fit repair | 30–45 min | £85–£95 |
| Soldered joint re-solder or replace | 45–60 min | £95–£120 |
| Pinhole leak — pipe section replacement | 45–90 min | £95–£150 |
| Burst pipe emergency repair | 45–90 min | From £150 |
| Concealed leak trace (acoustic + thermal) | 60–120 min | £120–£180 |
| Concealed leak repair (after access) | Varies | £150–£350+ |
| Under-floor leak (screed access) | Half day | £250–£500+ |
| Leaking shower waste / re-seal | 45–60 min | £75–£130 |
Prices include parts and labour. No call-out fee. For concealed leaks, we give a written quote before any access work begins. Insurance reports available on request.
Emergency Leak Response Across London
Engineers available 24 hours, 7 days a week — including Bank Holidays. Average response time under 60 minutes anywhere inside the M25.
Water Leak Repair FAQs
How much does water leak repair cost in London?
Water leak repair in London typically costs £85–£250 depending on the leak type and access. A visible leaking joint or compression fitting is £85–£95. A pinhole or section repair on exposed pipework is £95–£150. Hidden leaks requiring trace and access start at £150 and depend on how much damage there is. Emergency burst pipe repairs start at £150.
How do I know if I have a hidden water leak?
Signs of a hidden leak include: water meter spinning when all taps are off, unexplained damp patches on walls or ceilings, wallpaper bubbling or peeling, musty smell in a room, unusually high Thames Water bills, or soft/discoloured floor sections. We use acoustic listening equipment and thermal imaging cameras to locate leaks without unnecessary damage.
What should I do if I have a water leak right now?
Turn off your water supply immediately at the main stopcock (usually under the kitchen sink or where the supply enters the property). If water is near electrics, turn off the electricity at the consumer unit too. Mop up standing water to prevent floor damage. Then call us — we're available 24/7 with no call-out fee.
Will my home insurance cover a water leak repair?
Most home insurance policies cover damage caused by an escape of water (burst pipes, hidden leaks) but not the repair of the pipe itself. They typically cover the cost of tracing and accessing a hidden leak. We provide detailed reports and photographs for insurance claims, and can deal directly with loss adjusters.
Can you repair copper and plastic (MLCP/PEX) pipe leaks?
Yes. We repair all pipe materials used in London homes — copper (15mm, 22mm, 28mm), CPVC, plastic push-fit (Speedfit/John Guest), multilayer composite pipe (MLCP), and older lead pipe sections. We carry replacement fittings, compression joints, and push-fit connectors for same-day repair.
How do you find a hidden pipe leak?
We use a combination of techniques: acoustic listening devices (listen for the sound signature of pressurised water escaping), thermal imaging cameras (wet areas appear as cooler zones), and pressure testing (isolate sections of pipework to confirm the location). This avoids unnecessary wall or floor destruction. Once located, we confirm with the homeowner before any access work.
Related Services
Got a Leak? Call Now — We're Available 24/7
No call-out fee · Thermal imaging · Insurance reports · All London
📞 Call 020 0000 0000