55+ years

Trading in London

24/7
Emergency
76%
Repeat customers
12 month
Guarantee
Residential Plumbing

Water Leak Detection In London

Non-Invasive Tracer Gas Technology, 24/7 Response

At Anderson & Sons, we combine over 50 years of plumbing expertise with the most advanced technology to deliver precision water leak detection services across London. Whether you’re dealing with an elusive underground leak, an underfloor issue, or a hard-to-find leak behind walls, our expert team detects the leak with pinpoint accuracy – without damaging your home.
55+ years

Trading in London

24/7
Emergency
76%
Repeat customers
12 month
Guarantee
Early Detection

Why Early Water Leak Detection Is Essential

Hidden water leaks can cause significant damage over time, leading to costly repairs. By using non-invasive detection methods and the latest technology, we ensure leaks are found early, saving you both time and money. Choosing Anderson & Sons guarantees a quick, professional and efficient solution for water leaks anywhere in London.

Read our blog: 6 Signs You Might Have A Hidden Water Leak In Your Home.

Our Specialisms

Tailored Leak Detection For Every Situation

Using the latest tracer gas technology, our specialist leak detection service finds even the smallest leaks without causing major disruption to your property – no need to rip up floors, dismantle walls, or dig up your garden. This advanced method ensures we can accurately detect leaks in underground pipes, beneath flooring, or within wall cavities, all while keeping disruption to a bare minimum. Our property maintenance team are on hand to put things back the way they were once the leak has been found and resolved.

Underground Leak Detection

Suspect an underground water leak? With Anderson & Sons, you don’t have to worry about extensive excavation. Using state-of-the-art tracer gas technology, we can locate leaks deep within your underground pipes without the need to dig up your garden or driveway. Our team of skilled engineers has years of experience detecting leaks in various environments, including soil, stone and grass, ensuring a non-invasive solution that minimises damage to your property.

Underfloor Leak Detection

Leaks hidden beneath your flooring can cause significant damage if not detected early. We specialise in finding underfloor leaks using advanced tracer gas technology, which allows us to locate leaks under wood, tile or other types of flooring with minimal disruption to your home. Our non-invasive detection methods ensure your flooring remains intact, and the leak is addressed swiftly and professionally. Whether you’re concerned about damp spots or suspect a slow leak, our expert team is here to help.

In-Wall Leak Detection

Finding leaks behind walls can be difficult, but with our advanced leak detection technology, we can accurately detect leaks in hard-to-reach areas without causing damage to your property. Whether it’s a slow leak behind your kitchen or bathroom wall, our system pinpoints the source quickly and efficiently. By avoiding unnecessary wall damage, we save you time, hassle and costly repairs – providing a fast, reliable solution that protects your home from further water damage.
Our Specialisms

Why Choose Anderson & Sons?

Reliable & Local

We’re a London-wide plumbing company with a local, family-driven ethos. Established since 1966.

No Call-Out Charges

You only pay for the job being done. If it’s a complicated issue, we give honest advice in finding a solution with the least disruption.

Qualified Plumbers

Fully credited company with highly skilled, knowledgeable plumbers who have each worked for the company for several years. Over 80% of our business is from existing customers.

Emergency Call-Out 24/7

Plumbing emergencies don’t wait until the morning, so why should we?
FAQs

Frequently Asked Questions

Some of the most common questions about water leaks we get asked at Anderson & Sons.
Common signs include unexplained increases in your water bill, damp or mouldy patches on walls or ceilings, low water pressure, and a musty smell in certain areas. If you notice any of these, it’s worth having a professional inspection to confirm if there’s a leak.
First, turn off the water at the main stopcock to prevent further damage. Then contact a plumber to locate the leak and discuss repair options. Act quickly – delays can lead to more extensive damage and costly repairs.
Yes – untreated water leaks can lead to structural damage, mould growth and increased water bills. Over time they can weaken building materials and compromise the safety of your home. Addressing leaks early helps prevent these issues.
Regular maintenance is key. Have your plumbing system inspected periodically, especially if your home has older pipes. Insulate exposed pipes in colder months to prevent freezing, and check for signs of wear in your fixtures.
We use advanced, non-invasive tracer gas technology, which allows us to accurately pinpoint leaks without needing to disrupt your walls or floors. It works by detecting tracer gas introduced into the plumbing system, locating even the smallest leaks with precision.

Not at all. Using our tracer gas technology, we can detect leaks without causing unnecessary damage to your home. This non-invasive approach ensures minimal disruption, locating leaks from the surface without breaking through walls or flooring.

How It Works

Leak Detected In 5 Simple Steps

From your first call to a fully repaired leak – here’s exactly what to expect when you book with Anderson & Sons.
Step 01

Call Us Anytime

Contact us 24/7 and describe the symptoms. We’ll assess urgency and arrange a rapid response.
Step 02

Appointment Confirmed

We arrange a convenient appointment or emergency visit with a confirmed time slot.
Step 03

Engineer Arrives

Your qualified leak engineer arrives fully equipped with tracer gas detection technology.

We will share the plan with images and calls straight from site if you are not present.

Step 04

Leak Pinpointed & Fixed

We locate the leak non-invasively and repair it at source – no unnecessary damage.
Step 05

Job Complete

We confirm the repair, tidy up, and leave you with a 12-month guarantee on all work.

Reports will be emailed showing the works done

Reviews

What Our Customers Say

“I would just like to say how impressed I was with Anderson’s professionalism and competence today, and the company’s efficiency in retrieving the situation after the dismal service I received from my previous company. Anderson & Sons are now definitely my plumbers of choice.”
Mrs Forrester,
Putney
Get In Touch

Book A Leak Detection Engineer

Call us on 0207 386 8888 or use the contact form below – we respond the same day.
Get In Touch - Homepage

Please Note: Congestion charges and parking costs (if not available) are in addition. Prices are exclusive of VAT. The first hour charge is payable at the time of booking. All prices are per hour and VAT is charged separately. View our pricing here