Service

Buried Leak Location

We find where your roof is leaking — without stripping the entire overburden. No guesswork. No unnecessary disruption. Just precision, backed by European sensor technology.

Investigate this leak

The problem with buried membranes

Water travels. The leak and the symptom are never in the same place.

When a buried roof leaks, the usual response is a procession of contractors, each with a different theory. Strip back here. Open up there. Weeks pass. Costs mount. The leak persists — because on buried membranes, water travels laterally through drainage layers, insulation and substrate before finding a route down.

Conventional investigation methods are essentially educated guesswork. On a green roof, landscape deck or inverted system, every failed attempt means removing overburden, access costs, and programme delay.

Vector takes a different approach — electrical field mapping that locates the exact membrane breach to within approximately one metre. You open up the right area. You carry out a localised repair. You don't strip 200 square metres of green roof hoping to get lucky.

How it works

Three steps. One precise location.

From initial inspection to final report — a single, efficient engagement.

Step 01
Site Inspection

We begin with a full site visit — assessing the roof construction, understanding the build-up and establishing the right investigation strategy before any equipment is deployed.
Step 02
Electrical Field Survey

Using Texplor technology, we introduce a controlled voltage differential across the waterproofing membrane and use specialist survey equipment to detect conductivity anomalies — the signature of a membrane breach.
Step 03
Contour Map & Report

Results are compiled into a contour map that locates leaks to within approximately one metre. You receive a photographic record, survey data and a written report — everything needed for a targeted repair.

“Their approach accurately identified numerous leak locations, allowing us to resolve the issues with precision and minimal disruption — much to the relief of both the client and residents. I would highly recommend Vector for similar challenges.”

Martin Farrell | Senior Contract Manager, Balfour Beatty — Darley Dale Care Home

Typical use cases

Where we're called in

Green roofs with unknown leak source
Landscape podium decks over occupied space
Inverted roofs and buried membranes
Post-repair verification — did the fix work?
Pre-handover QA and commissioning
Leak sources that previous investigations couldn't find

What you receive

The deliverables

Breach location mapped to roof plan (~1 m accuracy)
Contour map showing moisture distribution
Photographic and survey record
Written report
Post-repair verification survey

Technology

Exclusive UK access to Texplor EFT technology

Our survey technology comes from Texplor, a specialist in geophysical measurement based in the Netherlands. Vector holds exclusive rights to use their buried leak location technology (EFT) in the UK — it is not available from any other UK provider.

Stop the guesswork. Stop the strip-out.

Tell us about the leak. We will locate it precisely, oversee the repair, and come back to verify it is done.