24/7 EMERGENCY

Burst pipe? Boiler down? No hot water? Engineers on call right now —

Mon–Fri 8am–6pm · Sat 9am–5pm ·

Emergency line open 24/7

Gas Safe Reg: 123456

Trustpilot 4.9★

BOOK ANY TIME — ALL OF LONDON

24/7 Leak Detection in London

A hidden leak doesn’t wait for office hours, and neither should you. Non-invasive detection equipment finds the source fast, any hour, every day of the year, anywhere in London.

BOOK YOUR SURVEY — ANY TIME

We answer around the clock.No call-out charge, ever.

🔒 Your details are never shared. We call back within 15 minutes, day or night.

24/7

Booking line, 365 days a year

<60m

Response time 

4.9★

Trustpilot, thousands of reviews

33

London boroughs covered

£0

Call-out charge
ever

Gas Safe Reg. 123456

Which? Trusted Trader

TrustMark Registered

★ Trustpilot 4.9

£5M Insured

Worcester Bosch Accredited

SOUND FAMILIAR?

Signs You Might Have a Hidden Leak

Not all leaks are obvious. These are the most common signs we’re called out for, at any hour.

Unexplained High Water Bills

A sudden jump in your water bill with no change in usage often points to an underground or hidden leak.

Damp Patches or Warm Spots

Damp patches on walls or floors, or warm areas on flooring, can indicate a leaking hot water pipe.

Water Meter Still Spinning

If your meter keeps moving with every tap and appliance off, water is escaping somewhere in the system.

Musty Smells or Mould

Persistent damp smells or mould growth, especially in areas without obvious water use, often trace back to a slow leak.

HOW WE FIND IT

Non-Invasive Detection, Any Hour

Our engineers arrive fully equipped, day or night, to locate the leak with minimal disruption.

Acoustic Detection

Sensitive listening equipment picks up the sound of water escaping from pressurised pipes, even behind walls or under floors.

Pressurised pipe leaks

Thermal Imaging

Thermal cameras detect temperature differences caused by leaking water, useful for spotting leaks in walls, floors and ceilings.

Hidden & slow leaks

Tracer Gas Detection

A safe, non-toxic tracer gas is passed through the pipework and detected at the surface, pinpointing leaks with high accuracy.

Underground & complex leaks

TRANSPARENT PRICING

24/7 Leak Detection Cost in London

Fixed prices agreed after a free survey — the same price whether you book at midday or 2am, and the same price in every borough.

Fixed Price

Standard Detection Visit

1–2 hrs · acoustic detection

from £150

Fixed Price

Thermal Imaging Survey

1–2 hrs · hidden/slow leaks

from £220

Fixed Price

Tracer Gas Detection

2–3 hrs · complex/underground

from £320

💡 These prices are exactly the same whether you call us at 9am on a Tuesday or 3am on a Sunday. If we carry out a repair on the same visit, detection costs are often discounted from the repair invoice.

THE PROCESS

How Booking Works, Any Hour of the Day

From your call to a working boiler — in four clear steps, whatever time you get in touch.

Call or book online

Tell us what's happening and the best time for you — including evenings and weekends. Takes under 2 minutes.

Free survey booked fast

We call you back within 15 minutes to arrange a visit and recommend the right boiler for your property.

Fixed price agreed upfront

You're given a fixed quote covering the boiler, installation and certification before any work begins.

Fitted, tested, guaranteed

Installation completed, usually within a day, with a full handover and 12-month workmanship guarantee.

WHY CHOOSE US

What Makes Our 24/7 Booking Different

Genuinely available around the clock

No answering machine at night — a real person picks up and books your survey, any hour.

Evenings and weekends, no surcharge

The price you're quoted for a Sunday evening slot is the same as a Tuesday morning one.

Non-invasive as standard

We locate leaks precisely before any cutting into walls or floors.

Fixed price — no zonal surcharge

Same pricing whether you're in Zone 1 or Zone 6, in any of the 33 London boroughs.

Gas Safe Registered

Reg. No. 123456 — every installation certified and registered correctly.

12-month guarantee on every job

All work across London carries our written workmanship guarantee, whatever time it was booked.

Verified Customer Reviews

What London Customers Say

4.9

Trustpilot

4.9★

Google

4.8★

Which? Trusted Trader

Read all reviews on Trustpilot →

“Noticed the meter still spinning at midnight with everything off. Called and someone actually picked up, engineer out first thing.”

Picture of Sarah C.

Sarah C.

Clapham

✓ Verified

“Called on a bank holiday about a damp patch that kept spreading. No fuss about the timing, just sorted quickly.”

Picture of Marcus J.

Marcus J.

Highbury

✓ Verified

“Water bill had doubled and I only noticed late one evening. Thermal imaging found the leak within the hour, no waiting until morning.”

Picture of Patricia O.

Patricia O.

Greenwich

✓ Verified

FAQs

24/7 Leak Detection London — Questions Answered

Yes, our line is answered by a real person 24 hours a day, 7 days a week, 365 days a year, so you can book or ask questions whenever suits you — including nights, weekends and bank holidays.

Yes. We offer evening and weekend survey appointments at no extra cost, and can often accommodate flexible installation scheduling too.

We use non-invasive methods first — acoustic, thermal imaging and tracer gas — to pinpoint the leak as precisely as possible before any cutting or digging.

We aim for the same under-60-minute response time whether it's 3am or 3pm, with engineers positioned across all 33 London boroughs on rotation around the clock.

Yes, we install boilers across all 33 London boroughs, from Zone 1 through to the outer suburbs, at the same fixed prices with no zonal uplift.

Suspect a Leak? Any Hour, We're On.

Call our 24/7 line or book online. Free survey, fixed price agreed before we start, evenings and weekends available at no extra cost, anywhere in London.