Engineer using a thermal imaging camera on a damp patch in a London hallway

Leak detection specialists

We find the leaks other plumbers can't

Thermal imaging leak surveys across London. We pinpoint the source before anything is cut open, repair it, put the wall back, and email you a written report the same day, written so an insurer, landlord or managing agent can act on it.

Leak surveys from [CONFIRM: £X], agreed in writing before we start.

The call costs nothing, and if we think you do not need a survey we will say so.

  • 5.0 from 228 reviews on MyBuilder
  • 25 years in the trade
  • Family run from Holloway
  • Written report, usually same day

Common signs

Think you have a leak?

These are the things people describe to us on the phone. One on its own can be nothing; two or three together usually means water is getting out somewhere, and it does not stop on its own.

  • A damp patch that dries out, then comes back in the same place

  • Water meter still ticking over with every tap in the house turned off

  • A musty smell in a room with nothing visibly wet

  • Paint bubbling, tiles lifting or plaster blowing off the wall

  • Warm or damp patch on the floor near the kitchen units or bathroom

  • A plumber has already been out, cut into something, and it is still leaking

If two or more of those sound familiar, ring us before anybody starts cutting. Not ready to book? Send a photograph and we will tell you what we think it is.

Book a Leak Survey

Every enquiry is read by us, not a call centre.

  • 25

    Years in the trade

  • 228

    MyBuilder reviews

  • 5.0

    Average rating

  • 99%

    Positive rating

Our method

We pinpoint it first, then open up one small area

Anyone can take a wall down and have a look. Knowing where not to is the part that takes experience.

  1. 1

    We ask before we touch anything

    When it started, what has already been tried, and how the place is built. A top-floor flat and a Victorian terrace leak in completely different ways.

  2. 2

    We survey and show you the readings

    Thermal imaging behind the plaster, damp meters across the floor, acoustics listening for pressurised water, drain camera for anything below ground.

  3. 3

    We open one small area

    Nothing comes off the wall until we can point at the spot and tell you why. Usually that is one panel or one lifted tile, not a stripped-out room.

  4. 4

    We repair it and put the room back

    Pipework, plastering, tiling and decorating, all by us. Then a written report with photographs by email, usually the same day.

How a leak survey actually goes
Thermal imaging camera screen showing the heat signature of a hidden pipe leakSmall access panel cut into a stud wall to reach a leaking pipe joint

The rest of our work

We find it, fix it, and put the room back

See the full trade list

Plastering, tiling and decorating our own repairs is how we ended up fitting whole bathrooms and kitchens. Nobody else needs booking in after us.

  • Newly fitted bathroom with grey tiling and walk-in shower

    Bathrooms

  • Newly fitted navy shaker kitchen with oak worktop

    Kitchens

  • New boiler and radiators with tidy copper pipework

    Central heating

  • House extension under construction with new brickwork

    Extensions and refurbs

Landlords, agents and commercial

One number for every property on your list

  • Multiple properties handled by the same team, so you are not re-explaining the background every time.
  • Written reports with photographs, emailed so you can forward them straight to a tenant, a landlord or an insurer.
  • We work around tenants and around opening hours, and we tell you what we found before we leave the building.
Talk to Us About Your Properties

Tell us how many properties and where. [CONFIRM: insurance cover details and any account or commercial terms]

Why us

Why people keep our number

A lot of our work is second opinions, after somebody else has already been out and had a go. This is usually what is different the second time.

  • The engineer does the work himself

    Family firm. The person who surveys your house is the person who repairs it, and every tradesman on the job is time-served and qualified.

  • 228 reviews, rated 5.0

    Ninety-nine percent positive on MyBuilder since December 2018. Every one written by somebody who let us through their front door.

  • We survey first, then cut

    Thermal imaging, damp meters, acoustics and drain cameras. You see the reading and the spot on the wall before anything comes off it.

  • The price is agreed in writing

    You know the figure before we start. If the wall comes off and there is something else behind it, we stop, show you, and you decide.

  • We keep the place clean

    Most of what we do is in occupied family homes. The room gets covered while we work and swept before we leave.

  • The work is guaranteed

    All of it. And we still answer the phone afterwards, which is not always the case in this trade.

Coverage

Holloway based, working right across London

Every area below is somewhere we have actually worked.

  • Holloway
  • Islington
  • Camden Town
  • Kentish Town
  • Kilburn
  • St Johns Wood
  • Paddington
  • Barbican
  • Shepherds Bush
  • Clapham
  • Greenwich
  • Rotherhithe
  • Walworth
  • Shadwell
  • Canary Wharf
  • Stratford
  • Forest Gate
  • Manor Park
  • South Norwood
  • Croydon
  • Bromley
  • Enfield
  • Edgware
  • Woodford
  • Hornchurch
  • Watford

Not on the list? Give us your postcode and we will tell you whether we can get to you and roughly when.

See all areas covered

Got a damp patch you cannot explain?

Ring us and you are talking to the person who will be doing the work. Or send a couple of lines and a photograph and we will come back to you the same working day.

The phone call costs nothing, and if we think you do not need a survey we will tell you.

Call UsBook a Survey