Damp, mould & leak services in Lewes
Lewes contains a dense mix of 18th and 19th century flint and brick terraces, Georgian townhouses, Victorian workers' cottages and post-war council stock. The town's position within the Ouse valley means many properties sit on low-lying ground, making rising damp, flood ingress and persistent structural moisture particularly common problems across different neighbourhoods.
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 Lewes we cover
We survey properties right across Lewes and its neighbourhoods, including:
- Cliffe
- Southover
- Wallands
- Landport
- Nevill
- North Street Quarter
- Malling
- Priory Quarter
- Brook Street
- St Anne's
- Offham
- Kingston
- Ringmer Road area
- Western Road
Common damp problems in Lewes homes
Rising and Penetrating Damp in Flint-Built Terraces
Many older properties in areas such as Cliffe and Southover were constructed using traditional Sussex flint with lime mortar. As original mortars degrade over time, they allow rainwater to penetrate external walls readily. Without functioning damp proof courses, ground moisture also rises through flint rubble foundations, causing persistent damp patches at skirting level, salt deposits on internal plasterwork and recurring mould growth.
Flood-Related Moisture and Hidden Structural Leaks
Lewes has a well-documented history of flooding, particularly affecting lower-lying streets near the River Ouse around Brook Street and Malling. Even properties that escaped direct flood water often retain elevated moisture levels within floor joists, subfloor voids and cavity walls long after flood events. Hidden leaks from aging pipework within these damp subfloor spaces frequently go undetected until significant timber decay or mould colonisation becomes visible indoors.
Condensation and Mould in Victorian and Post-War Housing
Victorian terraces throughout the Landport and Wallands areas, alongside mid-20th century housing stock in Nevill, commonly suffer from poor thermal performance in solid walls and inadequate ventilation. Retrofitted double glazing reduces air movement without adding mechanical extraction, causing condensation to accumulate on cold wall surfaces and around window reveals. This sustained moisture creates ideal conditions for black mould growth in bedrooms, bathrooms and kitchen areas.
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
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
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
Book a survey in Lewes
Call 020 3051 8478 or request a survey online. We work with homeowners, landlords and property managers across Lewes. Works are on a 50% upfront, 50% on completion basis.