Damp, mould & leak services in Islington
Islington's housing stock is dominated by Georgian and Victorian terraced houses, mid-century council blocks, and converted warehouse apartments in areas such as Clerkenwell. This dense mix of ageing brickwork, original lime mortar, and subdivided flats creates persistent vulnerabilities to damp ingress, condensation build-up, and concealed plumbing failures throughout the borough.
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 Islington we cover
We survey properties right across Islington and its neighbourhoods, including:
- Angel
- Highbury
- Canonbury
- Barnsbury
- Clerkenwell
- Finsbury Park
- Holloway
- Archway
- Tufnell Park
- Caledonian Road
- De Beauvoir Town
- Mildmay
- Nag's Head
- Highbury Vale
Common damp problems in Islington homes
Rising and Penetrating Damp in Victorian Terraces
Much of Barnsbury, Canonbury, and Highbury consists of mid-to-late Victorian terraced properties where original damp-proof courses have either failed or were never installed. Solid external walls absorb rainwater readily, and where pointing has eroded or brickwork has been inappropriately repointed with hard cement mortar, penetrating damp becomes a recurring and often misdiagnosed problem.
Condensation Mould in Subdivided Period Flats
Many of Islington's Georgian townhouses in Angel and Barnsbury have been converted into multiple flats, often with inadequate ventilation provision in kitchens and bathrooms. Reduced air movement, thermal bridging at original single-leaf party walls, and modern furnishings blocking airflow create ideal conditions for surface condensation and persistent black mould growth on cold external walls and window reveals.
Hidden Leaks in Council and Post-War Blocks
Islington retains a significant number of post-war council estates across Holloway, Caledonian Road, and Finsbury Park, where aging communal pipework, flat roofing systems, and original drainage stacks are prone to slow, concealed leaks. These often track unseen through concrete floor slabs or behind dry-lined walls, causing structural dampness and mould that only becomes visible once damage is already extensive.
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
Book a survey in Islington
Call 020 3051 8478 or request a survey online. We work with homeowners, landlords and property managers across Islington. Works are on a 50% upfront, 50% on completion basis.