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Clerkenwell · EC1R, EC1V, EC1M, EC1N, EC1A

Damp, Mould & Leak Specialists in Clerkenwell

Non-destructive damp surveys, hidden leak detection and mould investigation across Clerkenwell and the surrounding area, with clear, insurance-ready reports.

★★★★★ 4.9 from 17 Google reviews · trusted by Clerkenwell homeowners, landlords & property managers
Quick answer: If you have damp, mould or a suspected water leak at a property in Clerkenwell, our specialists carry out a non-destructive survey to find the root cause, then give you a written report and a clear plan to fix it. A full damp and mould survey is a fixed £500. Call 020 3051 8478.

Damp, mould & leak services in Clerkenwell

Clerkenwell's housing stock spans Georgian terraces, Victorian warehouses converted to loft apartments, post-war council blocks and early twentieth century mansion flats. This dense mix of ageing masonry buildings, many with original lime-mortar pointing and solid brick walls, creates persistent vulnerability to penetrating damp, condensation and concealed plumbing failures that modern cavity-wall construction rarely encounters.

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 Clerkenwell we cover

We survey properties right across Clerkenwell and its neighbourhoods, including:

Common damp problems in Clerkenwell homes

Penetrating Damp in Converted Victorian Warehouses

Clerkenwell's former industrial warehouses along Cowcross Street and St John Street have been widely converted into residential lofts. Their solid brick facades, often five or six courses thick, were never designed for domestic habitation. Repointing carried out with cement rather than lime mortar traps moisture within the brickwork, allowing penetrating damp to saturate internal walls and cause extensive mould growth behind plasterboard dry-lining.

Condensation and Mould in Georgian and Early Victorian Terraces

The Georgian and early Victorian terraces around Exmouth Market and Amwell Street feature high ceilings, sash windows and solid external walls with minimal thermal resistance. Inadequate heating combined with poor ventilation generates heavy condensation, particularly in bathrooms and kitchens. Repeated moisture cycles cause mould colonies to establish on north-facing walls, window reveals and within built-in wardrobes placed against external elevations.

Hidden Leaks Within Barbican and Post-War Concrete Blocks

The Barbican Estate and neighbouring post-war concrete residential blocks present a distinct challenge. Ageing cast-iron and early copper pipework concealed within concrete floors and service ducts is prone to slow, undetected leaks. These hidden failures allow water to track considerable distances before becoming visible, often saturating structural concrete, damaging communal corridors and creating persistent damp patches on ceilings below neighbouring flats.

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

Tip: If a damp patch keeps coming back after redecorating, it is almost always a symptom, not the problem. A survey that finds the source first saves paying for the same repair twice.

Book a survey in Clerkenwell

Call 020 3051 8478 or request a survey online. We work with homeowners, landlords and property managers across Clerkenwell. Works are on a 50% upfront, 50% on completion basis.

Frequently asked questions

How much does a damp survey in Clerkenwell cost?
A damp and mould survey is a fixed £500, including the non-destructive investigation and an insurance-ready written report. Leak detection, if needed, is £800 to £1500 depending on scale.
Do you cover the whole of Clerkenwell?
Yes. We survey properties across Clerkenwell and the surrounding neighbourhoods and postcodes.
Can you tell the difference between condensation, rising and penetrating damp?
Yes, and it matters because the fix differs for each. Our survey identifies which type you have using moisture readings and thermal imaging.
Do you provide reports for insurance claims?
Yes. Every survey comes with a clear written report including the cause, photographic evidence and recommendations, formatted for insurers and managing agents.