Leak to dry to treated, one company in High Barnet
High Barnet's housing runs from Victorian and Edwardian terraces around Wood Street and St Albans Road to 1930s semis, mock-Tudor houses near Monken Hadley, and postwar infill closer to Underhill. Solid-walled older properties with original single glazing and shallow foundations on London clay are especially prone to condensation and penetrating damp, while loft conversions and rear extensions common across the area often disrupt ventilation and create new cold spots 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 High Barnet we cover
We treat mould right across High Barnet and its neighbourhoods, including:
- High Barnet
- Chipping Barnet
- New Barnet
- East Barnet
- Whetstone
- Totteridge
- Arkley
- Underhill
- Barnet Vale
- Cockfosters
- Hadley Wood
- Monken Hadley
- Friern Barnet
- Oakleigh Park
Common causes of mould in High Barnet homes
Solid Walls and Condensation in Victorian Terraces
The Victorian and Edwardian terraces around Wood Street, Union Street and St Albans Road have solid brick walls with little insulation, so internal surfaces stay cold. Warm, moist air from cooking, bathing and drying laundry condenses on these cold walls and in unventilated corners, feeding black mould on ceilings, behind wardrobes and around bay windows where airflow is weakest.
Loft Conversions and Extensions Trapping Moisture
Many High Barnet semis and terraces have had loft conversions or rear extensions added over the years, often altering roof ventilation paths and boxing in original airbricks. Where these works were poorly detailed, warm moist air becomes trapped in new roof voids and extension junctions, causing hidden condensation and mould growth in converted bedrooms and adjoining ceilings.
Ageing Roofs and Render Letting in Damp
Older housing stock near Monken Hadley and Hadley Wood, including properties with pebbledash render and aged pitched roofs, is prone to slipped tiles, perished pointing and cracked render allowing rainwater to penetrate. This penetrating damp saturates plaster and timber over time, producing damp patches and black mould on external walls, around chimney breasts and behind furniture pushed against affected walls.
What our customers say
I have been dealing with damp and mould for years but these guys were able to come in and resolve the problem quickly and professionally. Their prices were fair and reasonable and they got the job done clean. 10/10 would use again and would recommend.
Thersa Waron Eurmind, via Google
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
Mould problem in High Barnet?
Call 020 3051 8478 or book a mould survey online. We remove mould and fix the cause for homeowners, landlords and managing agents across High Barnet.