Damp, mould & leak services in New Barnet
New Barnet's housing stock spans late Victorian and Edwardian terraces along Station Road and the surrounding streets, interwar semis concentrated near Lyonsdown Road, and a scattering of 1960s and 1970s purpose-built flats. This varied mix of solid-wall construction, ageing guttering, and flat-roofed extensions creates persistent vulnerabilities to damp ingress, condensation, and undetected 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 New Barnet we cover
We survey properties right across New Barnet and its neighbourhoods, including:
- New Barnet
- East Barnet
- Cockfosters
- Hadley Wood
- Monken Hadley
- High Barnet
- Barnet Vale
- Lyonsdown
- Brunswick Park
- Oakleigh Park
- Underhill
- Chipping Barnet
- Cat Hill
Common damp problems in New Barnet homes
Rising and Penetrating Damp in Victorian Terraces
The Victorian and Edwardian terraced streets close to New Barnet railway station were built without modern damp-proof courses, or have original slate DPCs that have since failed. Solid brick walls absorb rainwater readily, particularly on north-facing elevations, leading to penetrating damp that manifests as tide marks, salt deposits, and deteriorating plaster on internal ground-floor walls.
Condensation and Mould in Interwar Semis
The large stock of 1930s semi-detached properties around Lyonsdown Road and Oakleigh Park often feature cavity walls that were never insulated, combined with original single-glazed windows in some cases. Poor thermal performance encourages surface condensation on cold walls and window reveals throughout winter, which leads to persistent black mould growth in bedrooms, bathrooms, and poorly ventilated kitchens.
Hidden Leaks in Converted and Purpose-Built Flats
Converted Victorian houses and the purpose-built flat blocks found near Cat Hill and Brunswick Park present a specific risk of inter-tenancy leaks from ageing shared soil stacks, corroded copper pipework, and deteriorating bathroom waterproofing. These leaks frequently travel between floors before becoming visible, causing hidden timber decay, ceiling staining, and structural dampness that is often misattributed to condensation.
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
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
Book a survey in New Barnet
Call 020 3051 8478 or request a survey online. We work with homeowners, landlords and property managers across New Barnet. Works are on a 50% upfront, 50% on completion basis.