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Sydenham · SE26

Damp, Mould & Leak Specialists in Sydenham

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

Call 020 3051 8478Request a survey
★★★★★ 4.9 from 19 Google reviews · trusted by Sydenham homeowners, landlords & property managers
Quick answer: If you have damp, mould or a suspected water leak at a property in Sydenham, 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.
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Damp, mould & leak services in Sydenham

Sydenham's housing stock is dominated by Victorian and Edwardian terraces and semis, many built with solid brick walls and original slate roofs, alongside grand Sydenham Hill villas now split into flats and 1930s semis further towards Bell Green. Post-war infill and mansion blocks add flat roofs and older plumbing runs, so rising damp, ageing render, and tired conversions are common causes of moisture problems.

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 Sydenham we cover

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

Common damp problems in Sydenham homes

Solid-wall Victorian terraces and rising damp

Much of Sydenham's terraced housing off Kirkdale and Sydenham Road was built with solid brick walls and no damp-proof course by modern standards. Ground floors are prone to rising damp where render or paths bridge the original course, while original single-glazed sash windows and blocked airbricks trap moisture, encouraging mould on skirtings and lower walls in older properties.

Sydenham Hill villa conversions and condensation

Large Victorian villas on Sydenham Hill and around Wells Park Road were subdivided into flats decades ago, often leaving poor cross-ventilation and undersized bathroom extractors. Steam from kitchens and bathrooms has nowhere to escape, so condensation mould gathers on cold external walls, in corner rooms, and behind wardrobes in these upper-floor flats, especially through autumn and winter months.

1930s semis and flat-roof extension leaks

Towards Bell Green and Newlands Park, 1930s semis with cavity walls have often gained rear flat-roof kitchen extensions and loft conversions. Ageing felt roofing, cracked cavity wall ties, and poorly flashed junctions between old and new brickwork let water track internally, causing damp patches and mould around ceiling edges that only a proper leak survey can trace to source.

What our customers say

★★★★★

Really impressed with the whole experience. The surveyor did a proper, thorough job and didn't rush anything, they got to the root cause of the damp and explained it all clearly. Detailed, professional and reassuring from start to finish. Couldn't recommend them more highly.

Keiryn Raf, via Google

★★★★★

Very professional and organised I must say came out and completed the work very efficiently customer service was excellent. Definitely recommend this damp and mould service to anyone looking for a job done correctly. :)

Joeie Rouse, via Google

★★★★★

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

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 Sydenham

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

Frequently asked questions

How much does a damp survey in Sydenham 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 Sydenham?
Yes. We survey properties across Sydenham 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.

More help in Sydenham

Leak detection

Trace a hidden water leak in Sydenham using thermal, acoustic and tracer gas methods, with minimal damage. Leak detection in Sydenham →

Structural drying

Dry walls, floors and voids in Sydenham after a leak or flood, monitored to completion. Structural drying in Sydenham →