Leak to dry to treated, one company in Osterley
Osterley's housing is dominated by 1930s semi-detached and terraced homes built around the Osterley Park estate, many with solid or early cavity walls, alongside postwar infill and flat conversions near Great West Road. Original single glazing has often been replaced without added ventilation, while dated pebbledash and rendering trap moisture, making condensation and penetrating damp common triggers for mould.
Mould Treatment
Treat and prevent the mould that follows water damage, dealing with the moisture source first. Mould treatment →
Damp Investigation
Tell rising damp, penetrating damp and condensation apart, so the right repair is done once. Damp investigation →
Leak Detection
Trace hidden water leaks without unnecessary damage using thermal, acoustic and tracer-gas methods. Leak detection →
Structural Drying
Dry walls, floors and voids after a leak or flood with monitored dehumidifiers, to completion. Structural drying →
Areas of Osterley we cover
We treat mould right across Osterley and its neighbourhoods, including:
- Osterley Park
- Spring Grove
- Wyke Green
- Lampton
- Isleworth
- Hounslow
- Heston
- Norwood Green
- Cranford
- Smallberry Green
- Boston Manor
- Brentford
- Gunnersbury
- Whitton
Common causes of mould in Osterley homes
Cold bridging in 1930s semis
Many Osterley semis along roads near Thornbury Avenue and Wyke Green have solid brick sections or poorly filled early cavity walls where heat escapes quickly. This creates cold patches behind wardrobes and sofas pushed against external walls, where black mould develops unnoticed. We identify the cold bridges causing it and treat affected plaster before recommending insulation fixes that stop it returning.
Loft and rear extension conversions
Osterley's popular loft conversions and rear kitchen extensions often added bedrooms and bathrooms without matching extractor fan capacity. Steam from showers and cooking condenses on newly plastered ceilings and around uPVC window frames, feeding mould growth in rooms that previously had none. We treat the mould and assess ventilation shortfalls so moisture stops building up in these newer spaces.
Flat roofs and older guttering on conversions
Converted houses and low-rise flats around Spring Grove and Lampton often retain original flat roof sections or ageing cast iron guttering prone to leaks. Water tracking through parapets or blocked downpipes causes penetrating damp and mould staining on ceilings and upper walls, sometimes months after the original leak. We trace the moisture source, treat the mould, and advise on repairs to prevent recurrence.
What our customers say
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
Really impressed with the whole experience. The surveyor did a proper, thorough job and didn't rush anything, they got to the root cause of the damp and explained it all clearly. Detailed, professional and reassuring from start to finish. Couldn't recommend them more highly.
Keiryn Raf, via Google
Very professional and organised I must say came out and completed the work very efficiently customer service was excellent. Definitely recommend this damp and mould service to anyone looking for a job done correctly. :)
Joeie Rouse, via Google
Mould problem in Osterley?
Call 020 3051 8478 or book a mould survey online. We remove mould and fix the cause for homeowners, landlords and managing agents across Osterley.