Damp, mould & leak services in Lewisham
Lewisham's housing stock spans Victorian and Edwardian terraces in Brockley and Hither Green, post-war council estates in Bellingham and Catford, and converted flats throughout New Cross and Deptford. This variety of ages and construction methods creates persistent vulnerabilities to condensation, penetrating damp, and plumbing leaks, particularly in older properties with solid brick walls and ageing drainage infrastructure.
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 Lewisham we cover
We survey properties right across Lewisham and its neighbourhoods, including:
- Lewisham Town Centre
- Catford
- Lee
- Hither Green
- Forest Hill
- Sydenham
- Brockley
- Ladywell
- New Cross
- Blackheath
- Honor Oak
- Bellingham
- Grove Park
- Deptford
Common damp problems in Lewisham homes
Condensation and Mould in Victorian Terraces
Streets of Victorian terraced housing in Brockley, Hither Green, and Ladywell were built with solid single-skin brick walls and minimal ventilation by modern standards. Poor thermal performance causes warm indoor air to condense on cold wall surfaces, particularly in bedrooms and bathrooms. Converted flats within these properties suffer most acutely, as subdivision often disrupts original ventilation pathways and introduces additional moisture sources.
Penetrating Damp in Post-War and Council-Built Properties
Bellingham and Grove Park contain significant numbers of mid-twentieth-century council-built properties, including maisonettes and low-rise blocks constructed with non-traditional materials. Ageing render, failed pointing, and flat or low-pitched roofing details on these buildings allow rainwater to penetrate exterior walls. Damp patches appearing on internal walls after heavy rain are a common complaint, often worsening during the wetter autumn and winter months.
Hidden Leaks in Converted and Subdivided Properties
New Cross, Deptford, and Sydenham contain a high proportion of houses converted into flats over recent decades. Shared plumbing stacks, modified drainage runs, and ageing pipework concealed within ceilings and partition walls create conditions where slow leaks go undetected for extended periods. Water tracking silently through floor voids and wall cavities causes timber decay, staining, and secondary mould growth well away from the original source.
What our customers say
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
Service was excellent! Explained the whole process thoroughly, arrived on time when carrying out the survey. The survey was detailed and exactly what I needed for my insurance. They returned to carry out the treatment the following week. 10/10 would highly recommend.
Sukru, via Google
Book a survey in Lewisham
Call 020 3051 8478 or request a survey online. We work with homeowners, landlords and property managers across Lewisham. Works are on a 50% upfront, 50% on completion basis.