Damp, mould and leaks in Cricklewood
Damp Surveys, Mould & Leak Detection in Cricklewood
Damp, mould and leak investigations in Cricklewood in the London Borough of Barnet: calibrated readings, thermal imaging and acoustic tracing before anything is disturbed, then a written report and a clear quote for the repair. We cover NW2.
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Fully insured · Non-invasive methods first · Written reports included · London & Surrey
Why Cricklewood homes get dry rot, damp and hidden leaks
Cricklewood straddles the boroughs of Barnet and Brent in north west London, about five miles from Charing Cross, with the shops of Cricklewood Broadway on the Edgware Road and quieter streets behind them of largely late-Victorian, Edwardian and 1930s housing. It has two conservation areas, the Mapesbury Estate and the Cricklewood Railway Terraces, and much of the land west of the Edgware Road was laid out and built up by developers in the 1890s and 1900s.
Houses of that age in Cricklewood are now very often two or three flats, and the conversions of the 1970s and 1980s rarely improved the drainage, ventilation or waterproofing. The result is the mix of problems our engineers see most: sub-floor damp under suspended timber floors, penetrating damp through tired brickwork and failed pointing at bay windows and parapets, leaks between flats, and condensation mould in rooms that are cold and under-ventilated.
Cricklewood is one of the places where people search for dry rot and wet rot help most often, and the pattern is consistent: a leak or a damp wall that has gone unnoticed long enough for the timber to decay. We find the water first, establish how far the rot has spread, and set out in writing what must come out, what can be treated and what has to change so it does not return.
Housing in Barnet (Census 2021): 148,917 households: 53% owner-occupiers, 33% private renters, 13% social renters. Housing stock: purpose-built flats 37%, converted and other flats 11%, terraced 15%, semi-detached 27%, detached 10%.Source: ONS Census 2021, tables TS054 (tenure) and TS044 (accommodation type), via Nomis.
Housing in Brent (Census 2021): 118,612 households; 38% owner-occupied, 36% privately rented and 24% socially rented. 38% of homes are purpose-built flats, 19% are flats in converted houses or other buildings, 15% terraced houses, 22% semi-detached and 6% detached.Source: ONS Census 2021, tables TS054 (tenure) and TS044 (accommodation type), via Nomis.
Cricklewood: investigation, report, repair
One team for the investigation, the report and the remedial work that follows.
Leak detection
Non-invasive leak finding for ceilings that keep staining, pressure-losing boilers and unexplained wet patches.
Trace & access (insurance)
Locate, open up at one point, photograph and record: the evidence an escape-of-water claim is built on.
Insurance-ready reports
A report that answers the adjuster’s questions before they are asked: cause, route, extent, evidence.
Urgent leaks & burst pipes
For active leaks we prioritise attendance and isolate the source before the damage spreads.
Mould treatment & investigation
We find the moisture source, treat the mould and tackle the cause so it is far less likely to return, all backed by a written report.
Damp & mould surveys
Independent damp diagnosis for owners, buyers and landlords, with no treatment sold on the back of it.
Moisture mapping & thermal imaging
Infrared scanning and calibrated meters that map the wet area and point to its source.
CCTV drainage surveys
When a wall is wet at the base and nothing inside explains it, the drain outside usually does; we put a camera in it.
Timber, floors and joist ends: the hidden damage from leaks
A slow leak under a bath, behind a kitchen kickboard or from a radiator pipe in a screed can run for months before anyone notices. By the time a floor feels springy or a skirting crumbles, the joist ends and wall plates may have been wet for a long time.
Our investigation checks the timber as part of the leak trace: moisture content, decay, and whether the sub-floor is ventilating. The report sets out what needs replacing and what can dry out, so the repair quote covers the real extent of the damage rather than the visible patch.
Damp surveys for buyers and owners in Cricklewood
A mortgage valuation that flags “high moisture readings” or a surveyor’s recommendation for a specialist damp report is where many Cricklewood enquiries start. The reading on a pin meter at a single point tells you very little on its own; the pattern of readings and the construction behind them tell the story.
Our team maps the moisture, identifies the source and writes a report that a buyer, seller or lender can act on, including what work is actually needed and what is not. If repairs follow, we quote them separately and can carry them out or manage them.
Bathroom and shower leaks: the usual suspects
The ceiling below a bathroom is the most common place a Cricklewood homeowner first sees a leak. Failed silicone at a bath or shower tray, a cracked grout line, a loose waste trap, a weeping compression joint behind the panel and a shower valve leaking inside the wall all produce the same stain below, and each needs a different fix.
Rather than open the ceiling, our team tests the bathroom from above: moisture mapping around the fittings, flood tests of the tray and seals, thermal imaging while fittings run, and acoustic or tracer-gas tracing for pressurised pipework. The report names the fitting at fault and our team quotes and carries out the repair.
Mould, ventilation and the modern sealed home
Draught-proofing, replacement windows and loft insulation make Cricklewood homes warmer and tighter, and a tighter home holds more moisture. Cooking, showers, drying washing indoors and simply breathing put litres of water into the air each day; without extraction it condenses on the coldest surfaces and mould follows.
That does not mean every mould patch is “lifestyle”. Our team measures humidity and surface temperatures, tests whether extractor fans are actually moving air, and rules a leak in or out with instruments before reaching that conclusion. The written findings say which it is and what will stop it.
What the trace and access report contains
Each report records the property and the affected rooms, the methods used, the moisture readings and thermal images, the identified source, the access made, and the recommended repairs and drying.
It is the document a loss adjuster, solicitor, surveyor or housing officer can act on without a second visit, and it stays on file for any later dispute over cause or responsibility.
Real investigations by our team
Genuine photographs from our jobs across London & Surrey and, listed beneath them, investigations our team has carried out in and around Cricklewood.
- Hendon same borough: damp, mould and leak investigation with a written report, August 2026.
How we investigate
Non-invasive first. We open up only when we know exactly where the problem is.
Look and listen
We start by walking the property with you: every stain, smell and soft patch is a clue to where the water is.
Mapping the moisture
Calibrated readings in a grid show the shape of the wet area and point towards its source.
Seeing the temperature
A thermal camera shows evaporative cooling from wet areas and warm lines from heating pipes without touching the surface.
Narrowing it down
Acoustic equipment and tracer gas reduce the search from a whole floor to a tile or two.
Proving the pipe
A pressure drop on an isolated circuit confirms the leak is in that pipework and nowhere else.
Report and quote
Findings, photographs and readings in writing, with a separate quote for any remedial work.
What you receive
You receive a written report with photographs, moisture readings and thermal images where used, a plain-English statement of the cause, and the recommended repairs and drying. Where remedial work is needed our team quotes it separately and can carry it out or manage it for you.
Book a damp, mould or leak investigation in Cricklewood
Phone, WhatsApp or the call-back form, whichever is easiest. Active leaks are prioritised over everything else.
Get a call back☎ 0800 054 1524WhatsApp us
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Tell us about your Cricklewood property
Leave your details and a short description. One of our engineers will call you back; if water is coming in now, ring 0800 054 1524.
Nearby places we cover
We also attend Childs Hill, Dollis Hill, Brondesbury, West Hampstead, Willesden, Hampstead, West Hendon and Golders Green.
Elsewhere in Barnet: Hendon
Part of Barnet borough page · All London boroughs · NW postcode area · All locations
Cricklewood: your questions answered
Will you tell me if there is no leak?
Yes. Some investigations end with no leak found (condensation, a one-off spill or an old, dried-out stain) and the report says so plainly. A written negative result is often exactly what a water company or insurer needs.
Can you find a leak in Cricklewood without damaging walls or floors?
Yes, that is the point of the investigation. Thermal imaging, acoustic listening, tracer gas and moisture mapping locate the leak first, so any opening-up is a single targeted access rather than exploratory holes.
Do you cover Cricklewood?
Yes. Cricklewood (NW2) is covered by our own team, as is the rest of Barnet. Call 0800 054 1524 or WhatsApp us for the earliest available appointment; urgent leaks are prioritised.
What should I do before you arrive?
Nothing destructive. Leave the stain as it is, note when it changes and what was running at the time, make sure we can reach the stop tap, boiler and the rooms affected, and have any previous reports or photographs to hand.
Will my insurance pay for trace and access?
Trace and access may be covered under buildings insurance, depending on the policy. We provide the insurance-ready report and evidence to support the claim; the decision on cover rests with your insurer.
Last reviewed: 27 October 2026. Independent investigation and written reports. Repairs are quoted separately.