Leak to dry to treated, one company in South Kensington
South Kensington's housing stock is dominated by grand stucco-fronted Victorian terraces and red-brick mansion blocks, many carved into flats with shared roofs, basements and communal heating. Solid brick construction, listed facades and conservation area rules limiting alterations mean poor insulation and restricted ventilation are common, creating ideal conditions for condensation and black 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 South Kensington we cover
We treat mould right across South Kensington and its neighbourhoods, including:
- Brompton
- Knightsbridge
- Chelsea
- Earls Court
- Gloucester Road
- Kensington
- Onslow Square
- Cromwell Road
- The Boltons
- Redcliffe Square
- Queen's Gate
- Thurloe Square
- West Brompton
- Lexham Gardens
Common causes of mould in South Kensington homes
Solid-wall Victorian terraces and cold bridging
Many South Kensington terraces predate cavity wall construction, so external walls stay cold in winter while rooms are heated intermittently, especially in flats occupied by tenants or part-time residents. Warm moist air meets these cold surfaces and condenses, and black mould spreads across corners, behind wardrobes and along ceiling lines where airflow is weakest, often reappearing each winter until the wall's thermal performance is addressed.
Lower ground floor and basement conversions
Grand South Kensington houses converted into lower ground floor flats frequently suffer penetrating damp through old solid floors and party walls below street level, alongside limited natural light and airflow. Combined with cooking, bathing and drying laundry indoors, humidity builds quickly, feeding mould on walls, behind furniture pushed against external walls, and in bathrooms where extraction is often inadequate for the room's size and moisture load.
Sash windows and listed building restrictions
Conservation area status and listed building rules across much of South Kensington restrict replacing original single-glazed sash windows or fitting modern trickle vents and extractor fans on facades. Windows sweat heavily in cold weather, and without adequate ventilation this moisture settles around frames and reveals in bedrooms, causing black mould that keeps returning unless the underlying moisture and airflow issue, not just the window itself, is properly resolved.
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
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
Mould problem in South Kensington?
Call 020 3051 8478 or book a mould survey online. We remove mould and fix the cause for homeowners, landlords and managing agents across South Kensington.