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★

NON-INVASIVE LEAK DETECTION — WANDSWORTH

Leak Detection in Wandsworth

Damp patch, high water bill, or a leak you can’t locate? Our engineers use acoustic, thermal and tracer gas technology to find hidden leaks across Wandsworth — without unnecessary digging or wall damage.

SW11

SW12

SW15

SW17
SW18

Book a Leak Detection Inspection

Respond within 2 hours · No call-out charge

🔒 No obligation. Fixed price confirmed before any work starts.


300+

Leaks traced in Wandsworth

<2hrs

Typical inspection time

4.9★

Trustpilot rating


5

Postcodes covered, SW11–SW18

£0

Call-out charge
ever, any time

Gas Safe Reg. 123456

Which? Trusted Trader

TrustMark Registered

★ Trustpilot 4.9

£5M Insured

Non-Invasive Detection Specialists

WHY IT MATTERS

Suspect a Hidden Leak in Your Wandsworth Home?

Hidden leaks rarely announce themselves clearly — they show up as small, easy-to-dismiss signs first. These are the patterns Wandsworth homeowners tell us about most.

Unexplained Damp or Staining

Common in Battersea and Wandsworth Town’s period conversions, where a stain can point to a leak well away from where it appears.

Rising Water Bills

A steadily climbing bill with no change in usage is often the first sign of an underground or concealed supply leak.

Low or Dropping Pressure

A gradual pressure drop across taps can indicate a leak feeding off the mains supply somewhere in the system.

Wet Patches Outdoors

Common on larger Putney and Southfields gardens — a persistently soggy patch of lawn often traces back to a split supply pipe.

⚠️ Other signs worth booking an inspection for

  • A musty smell with no obvious source
  • Bubbling or peeling paint and wallpaper
  • A hissing sound behind walls or under floors
  • Mould developing in a previously dry area
  • Warm patches on flooring, near heating pipework
  • The water meter still turning with everything off

WHAT'S INCLUDED

Our Leak Detection Process in Wandsworth

A methodical, non-invasive process designed to find the exact source of a leak before any repair work is even discussed.

Initial Assessment

We review the signs you've noticed, check the water meter, and identify the likely area of the property to investigate first.

Non-Invasive Detection

Acoustic listening equipment, thermal imaging and tracer gas are used to pinpoint the leak without lifting floors or opening walls.

Confirm & Report

Once located, we confirm the exact position and cause, and provide a fixed price for repair before any further work begins.

Repair & Sign Off

If you'd like us to carry out the repair, it's completed, tested, and signed off with a written report the same visit where possible.

CAPABILITY

How We Find Leaks Without Digging Up Your Home

Different leaks need different detection methods — our engineers are equipped for all of them.

Acoustic Leak Detection

Sensitive listening equipment picks up the sound of water escaping under pressure, even through walls, floors and underground pipework.

Best for pressurised supply leaks

Thermal Imaging

Identifies temperature differences caused by escaping water or heating fluid, useful for tracing leaks behind walls and under floors.

Ideal for concealed pipework

Tracer Gas Detection

A safe, non-toxic tracer gas is introduced into the system and detected as it escapes — highly accurate for hard-to-locate leaks.

Most precise for stubborn leaks

WHAT YOU GET

Why Proper Leak Detection Matters

Guesswork leads to unnecessary damage. A proper detection survey protects your home and your budget.

No Unnecessary Damage

Non-invasive methods mean we don't open up walls or lift floors speculatively — only where the leak is confirmed.

Lower Water Bills

An undetected leak can run for months, quietly inflating your bill. Finding and fixing it stops the waste at the source.

Prevents Structural Damage

Left long enough, hidden leaks can cause rot, mould and damage to foundations — catching it early avoids costly repairs later.

Documented for Insurance

A written report with findings and photos, useful if you need to support an insurance claim for water damage.

TRANSPARENT PRICING

Leak Detection Cost in Wandsworth

Fixed prices agreed before we start. Any repair work is quoted separately once the leak is confirmed.

Fixed Price

Standard Leak Detection Survey

1–2 hrs · acoustic & thermal detection

£149

Most Common

Standard Household

Full Leak Detection with Tracer Gas

2–3 hrs · for hard-to-locate or repeat leaks

£220

After Detection

Leak Repair

Varies by access & location

from £120

💡 All detection surveys are fixed price and agreed upfront. If a repair is needed once the leak is located, your engineer explains the cost and gets your approval before proceeding — there’s never an obligation to book a repair with us.

WHY CHOOSE US

Why Choose Our Leak Detection Engineers in Wandsworth

Fully Equipped for Every Leak Type

Acoustic, thermal and tracer gas equipment carried as standard, so we're never guessing at the right approach.

Experience Across Wandsworth's Property Mix

From Battersea and Balham's period conversions to Putney and Southfields' larger family homes and gardens.

No Pressure to Book Extra Work

Our detection survey stands alone — you're never obligated to book a repair with us once the leak is found.

Fixed Price — No Wandsworth Surcharge

Same pricing whether you're in SW11 Battersea or SW17 Tooting. No zone uplift, ever.

Gas Safe Registered

Reg. No. 123456 — essential for any work connected to your boiler or wider heating system.

4.9★ on Trustpilot

Hundreds of Wandsworth homeowners have rated our leak detection service five stars for accuracy and minimal disruption.

Verified Customer Reviews

What Wandsworth Customers Say

4.9

Trustpilot

4.9★

Google

4.8★

Which? Trusted Trader

Read all reviews on Trustpilot →

“Our water bill had almost doubled with no explanation. The engineer used tracer gas and found a split supply pipe under the drive in about two hours, without digging up the whole thing first.”

Picture of Sarah C.

Sarah C.

Battersea, SW11

✓ Verified

“Damp patch kept appearing on our lounge ceiling in our Putney house. Thermal imaging traced it to a heating pipe two rooms away — repaired the same day, no unnecessary holes in the wall.”

Picture of Marcus J.

Marcus J.

Putney, SW15

✓ Verified

“Persistent wet patch in the garden for months. Turned out to be a leaking supply pipe, found accurately and quickly. Fixed price throughout, no surprises.”

Picture of Patricia O.

Patricia O.

Tooting, SW17

✓ Verified

FAQs

Leak Detection in Wandsworth — Questions Answered

We use acoustic listening equipment, thermal imaging and tracer gas to pinpoint the location of a leak without needing to dig up gardens or open walls speculatively. Each method suits different leak types, and your engineer will select the right approach based on the signs you've noticed.
A standard leak detection survey using acoustic and thermal methods starts from £149. For harder-to-locate or repeat leaks, a full survey including tracer gas is £220. Any repair work is quoted separately once the leak is confirmed.
No. Our leak detection survey is a standalone service. Once the leak is located, you'll receive a fixed price for the repair, but there's no obligation to book that work with us.
Yes. Acoustic and tracer gas detection are both effective at locating leaks beneath solid floors, driveways and patios without the need for exploratory digging.
Yes. We cover the entire Wandsworth borough — Battersea, Balham, Putney, Tooting and Wandsworth Town / Southfields — postcodes SW11, SW12, SW15, SW17 and SW18.
Yes. We provide a written report with our findings and photographs from the survey, which you can use to support a home insurance claim for water damage.
We typically schedule leak detection surveys within 24 to 48 hours of your enquiry. If the leak is causing active flooding or significant water loss, call our emergency line and we'll prioritise a faster response.

Think You Have a Hidden Leak in Wandsworth?

Don’t guess or start digging. Book a non-invasive leak detection survey and get a clear answer, fast.

Nearby Areas

Leak Detection in Nearby South West London Areas

We also cover these neighbouring boroughs — same fixed prices, same-day availability.