Damp, mould & leak services in Harlesden
Harlesden's housing stock is dominated by late-Victorian and Edwardian terraced houses, alongside a significant number of interwar and postwar council-built properties, particularly around Stonebridge. Many terraces have been converted into flats, adding shared roof spaces and internal pipework that complicate moisture management and increase the risk of damp, mould and concealed leaks.
Leak Detection
Trace hidden water leaks without damage using thermal, acoustic and tracer-gas methods. Leak detection →
Damp Investigation
Identify rising damp, penetrating damp and condensation, and tell them apart properly. Damp investigation →
Mould Inspection
Find the moisture source feeding the mould, not just treat the surface. Mould inspection →
Structural Drying
Dry out walls, floors and voids after a leak or flood, monitored to completion. Structural drying →
Areas of Harlesden we cover
We survey properties right across Harlesden and its neighbourhoods, including:
- Harlesden town centre
- Stonebridge
- Roundwood
- Kensal Green
- College Park
- Willesden Junction
- Lower Place
- Craven Park
- Harlesden High Street
- Hydes Place
- Old Oak
- Church End
- Manor Park
Common damp problems in Harlesden homes
Rising and Penetrating Damp in Victorian Terraces
The substantial stock of late-Victorian terraced houses across Craven Park, Harlesden High Street and College Park frequently suffer from failed or absent damp-proof courses. Original solid brick walls absorb driving rain readily, and where pointing has eroded, penetrating damp tracks inward through party walls and front elevations, leading to persistent staining, peeling plasterwork and mould growth at low levels.
Condensation and Mould in Converted Flats
Many Edwardian terraces throughout Kensal Green and around Willesden Junction have been subdivided into flats, often with minimal insulation upgrades. Reduced natural ventilation, blocked original fireplaces and inadequate extractor fans combine to trap moisture-laden air. Bathrooms, kitchens and north-facing bedrooms are particularly vulnerable, with black mould forming on cold external walls and window reveals throughout the colder months.
Hidden Leaks in Stonebridge and Roundwood Estate Properties
Postwar and interwar council properties around Stonebridge and Roundwood contain ageing communal pipework and flat-roof sections that have deteriorated significantly over decades. Leaks from flat roofs or from shared supply pipes in ceiling voids frequently go undetected for extended periods, causing structural saturation, timber decay and widespread mould colonisation before the source is identified and addressed.
What our customers say
Omg what brilliant service, excellent the cleaner did a very good job was efficient he took his time and cleaned everything, highly recommend S. Bessim…
Susan Bessim, via Google
Service was excellent! Explained the whole process thoroughly, arrived on time when carrying out the survey. The survey was detailed and exactly what I needed for my insurance. They returned to carry out the treatment the following week. 10/10 would highly recommend.
Sukru, via Google
Amazing company! They responding very quickly. They have a low prices as well, not crazy quotes like from others. Job has been done very quickly and team was very professional. I will use them in the future if I needed. Thanks!
Patryk Gutowski, via Google
Book a survey in Harlesden
Call 020 3051 8478 or request a survey online. We work with homeowners, landlords and property managers across Harlesden. Works are on a 50% upfront, 50% on completion basis.