Leak to dry to treated, one company in Highgate
Highgate's housing mix runs from Georgian and Victorian townhouses around the Village and South Grove, split into flats, to 1930s semis near Holly Lodge Estate and mansion blocks such as Highpoint. Solid brick walls, original sash windows and conservation rules limiting external insulation leave many homes poorly ventilated, while the hill's gradient adds penetrating damp to basement and ground floor rooms.
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 Highgate we cover
We treat mould right across Highgate and its neighbourhoods, including:
- Highgate Village
- Highgate New Town
- Archway
- Crouch End
- Muswell Hill
- Dartmouth Park
- Kentish Town
- East Finchley
- Hampstead Garden Suburb
- Holly Lodge Estate
- Swains Lane
- Southwood Lane
- Cholmeley Park
- Waterlow Park
Common causes of mould in Highgate homes
Penetrating Damp in Hillside Basement Flats
Highgate's steep streets around Highgate West Hill and Swains Lane mean many converted basement and lower-ground-floor flats sit against retaining walls and sloping gardens. Rainwater run-off and groundwater push through old brickwork and failed tanking, bringing penetrating damp that shows as black mould on external walls, behind wardrobes and along skirting boards, often worsening after heavy rain.
Condensation in Subdivided Victorian Terraces
Large Victorian and Georgian houses around South Grove, Southwood Lane and Highgate High Street were built as single family homes and are now split into flats. High ceilings, shared boilers and single extractor fans struggle to shift moisture from cooking, bathing and drying clothes, so condensation gathers on cold external walls, leaving mould around windows, in bathrooms and on bedroom walls behind beds.
Sash Windows and Conservation Area Restrictions
Much of Highgate Village sits within a conservation area, so original single-glazed sash windows often cannot be replaced with modern double glazing. Cold glass and frames encourage condensation to run down onto reveals and sills, feeding black mould around window openings, while furniture pushed against these colder external walls traps moisture and grows mould unseen behind sofas and wardrobes.
What our customers say
Very helpful and professional, easy to communicate with about my mould issues and I received fast responses from the company on the best solutions for me. would recommend to all friends and family. 5/5
Jensen B, via Google
I recently used a damp and mould specialist company and was extremely impressed with the service from start to finish. From the initial survey, they were knowledgeable, thorough, and took the time to clearly explain the cause of the issue rather than just treating the symptoms.
Tarik Barak, via Google
Was lovely working with the team and they did a fantastic and quick job to get all the mould out of my bathroom. Very much looking forward to working with them on other projects around my house!! Thank you for everything and shout out to Karim for being so sweet!
Mariama, via Google
Mould problem in Highgate?
Call 020 3051 8478 or book a mould survey online. We remove mould and fix the cause for homeowners, landlords and managing agents across Highgate.