Damp · Mould · Leak in Leatherhead
Damp & Mould Surveys, Leak Detection & Trace & Access in Leatherhead
Our surveyors investigate damp and mould properly in Leatherhead homes, trace hidden leaks without tearing them apart, and write the report your insurer asks for, across KT22 and the Mole Valley.
Get a call back☎ 0800 054 1524WhatsApp us
Fully insured · Non-invasive methods first · Written reports included · London & Surrey
Why Leatherhead homes get damp, mould and hidden leaks
Leatherhead is a Mole Valley town with a real spread of housing, and each type fails in its own way. In the old town around Church Street and the High Street you have period and cottage-style properties with solid walls, where the usual problems are penetrating damp through old brickwork, failed pointing and rising damp where the original defences have broken down. Across the interwar streets, the stock is largely 1930s bay-fronted semis, where we most often trace leaks behind bay windows, slipped roof and valley leaks, and condensation mould in cold bathrooms and rear extensions. Our damp and mould surveys and non-invasive leak detection diagnose the real cause first, because guessing wastes money.
The River Mole, flooding and ground damp in Leatherhead
The River Mole runs right through Leatherhead and neighbouring Fetcham, and it is one of the most flood-prone rivers in Surrey, upstream near Box Hill it even disappears into the famous swallow holes. Homes on the lower ground near the river can sit damp for longer, which shows up as persistent damp to lower walls and floors, damp cellars and moisture that keeps returning after cosmetic repairs. We use moisture mapping to tell the difference between genuine ground water or rising damp and a plumbing leak or condensation, because the fix, and who should pay for it, is completely different.
What we do in Leatherhead
Every job starts with finding the real cause, not painting over the symptom.
Mould treatment & investigation
We find the moisture source, treat the mould and tackle the cause so it is far less likely to return, with a written report.
Damp & mould surveys
A proper diagnosis (condensation, penetrating or rising damp) so you fix the right thing once.
Trace & access (insurance)
We find and expose the leak and document it for your escape-of-water claim.
Insurance-ready reports
Clear, evidenced reports written for insurers, solicitors and managing agents.
Leak detection
Thermal imaging, acoustic and moisture tracing to pinpoint a hidden leak before any wall comes down.
Emergency & burst pipes
Urgent cases are prioritised when water is coming through a ceiling or a pipe has burst.
Moisture mapping & thermal imaging
Calibrated readings and thermal surveys that show exactly where the moisture is, and where it isn’t.
CCTV drainage surveys
Camera surveys that find blockages, collapses and leaking joints that feed damp into a property.
Real investigations by our team
Genuine photographs from DML jobs across London & Surrey, not stock imagery.
How we investigate
Non-invasive first. We open up only when we know exactly where the problem is.
Visual inspection
A methodical room-by-room inspection of the affected areas, inside and out.
Moisture readings
Calibrated moisture meter readings across walls, floors and ceilings.
Thermal imaging
Infrared scanning, where suitable, to reveal hidden moisture and cold spots behind finishes.
Acoustic & tracer gas
Acoustic listening and tracer gas, where suitable, to pinpoint concealed pipe leaks.
Pressure testing
Pressure testing of heating and supply pipework where suitable.
Photos & written report
Photographs, readings and clear findings in a written report you can act on.
Insurance leaks & trace and access
Trace and access may be covered under buildings insurance, depending on the policy. We provide insurance-ready reports and evidence to support the claim. Our Leatherhead engineers give you the non-invasive trace, the photographs and readings, and a written report you can hand straight to your insurer or loss adjuster.
Insurance, landlords and tenants in Leatherhead
Reports prepared to support insurance, landlord, agent or housing matters. Trace and access may be covered under buildings insurance, depending on the policy. We provide the photographs, readings and written evidence to support the claim. For landlords and housing providers, our reports are suitable as supporting evidence for housing, landlord or compliance matters. Written workmanship terms apply where relevant.
Book a damp, mould or leak investigation in Leatherhead
Covering Leatherhead and the surrounding area. Call free, WhatsApp us, or request a call back and one of our team will get straight back to you.
Get a call back☎ 0800 054 1524WhatsApp us
Insured
Included
Prioritised
Evidence Reports
Terms
Get a call back about your Leatherhead property
Tell us what’s happening and one of our team will call you back. For urgent problems call 0800 054 1524.
Areas we cover around Leatherhead
Surrey hub · Ashtead · Cobham · Epsom
We also attend Fetcham, Great Bookham, Little Bookham, Oxshott and the Mole Valley villages.
Frequently asked questions: Leatherhead
Can you find a leak without smashing the house up?
Yes. That is the point of professional leak detection. We use thermal imaging, acoustic listening and moisture mapping to pinpoint it, then open up only the spot that matters. That care matters even more in Leatherhead’s older, period properties.
My house is in Leatherhead’s old town. Can you still help?
Yes. We handle older and period properties carefully, tracing the source with non-invasive tools first so we disturb as little of the original fabric as possible.
Is my damp rising damp or a leak?
It is often neither. A lot of what looks like rising damp is condensation or a slow leak. Leatherhead’s low ground near the River Mole does cause genuine ground damp in places, so we test and map the moisture properly rather than assuming.
Will my insurance pay for the work?
Trace and access may be covered under buildings insurance, depending on the policy. We provide insurance-ready reports and evidence to support the claim.
How fast can you get to Leatherhead?
Our engineers cover the Mole Valley and wider Surrey. Call 0800 054 1524 for the earliest available appointment; urgent leaks are prioritised.
Last reviewed: 27 October 2026. Independent investigation and written reports. Repairs are quoted separately.