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Downham · BR1, SE6, SE12

Damp, Mould & Leak Specialists in Downham

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

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

Downham is dominated by the London County Council's Downham Estate, built between 1924 and 1930 as one of interwar London's largest cottage estates, mixing pebbledash and brick two-storey houses with pitched roofs. Solid-wall construction, original single-glazed frames and shallow Edwardian-era foundations nearby mean rising damp, roof valley leaks and condensation are common where cavity insulation and ventilation upgrades have lagged behind.

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 Downham we cover

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

Common damp problems in Downham homes

Pebbledash and solid-wall damp on the Downham Estate

Many Downham Estate cottages have solid brick or rendered walls with no cavity, so driving rain penetrates through cracked pebbledash and perished pointing, especially on exposed gable ends along Downham Way and Valeswood Road. Once moisture bridges the wall, internal plaster stays damp for months, causing musty smells, blistering paint and mould creeping up skirting boards in ground-floor rooms.

Flat-roof and valley gutter leaks on 1930s terraces

Rows of interwar terraces around Moorside Road and Reigate Road often have shallow-pitched roofs with lead or felt valley gutters between adjoining properties. These valleys silt up with debris and corrode with age, letting water track along roof timbers into loft spaces unnoticed until ceiling staining or sagging plasterboard appears in upstairs bedrooms.

Condensation mould in retrofitted post-war infill homes

Pockets of 1950s and 1960s infill housing near Whitefoot and Grove Park were built to lower thermal standards and have since had windows replaced without adequate trickle ventilation. Combined with modern airtight draughtproofing, cooking and drying laundry indoors raises humidity quickly, leading to persistent black mould around window reveals, wardrobes on external walls and bathroom ceilings.

What our customers say

Excellent
Rated 4.9 / 5 based on 19 reviews on

Was lovely working with the team and they did a fantastic and quick job to get all the mould out of my bathroom. Very much looking forward to working with them on other projects around my house!! Thank you for everything and shout out to Karim for being so sweet!

Mariama✓ a month ago

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✓ 2 months ago

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✓ 2 months ago

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✓ 3 months ago

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✓ 5 months ago
See all reviews on 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 Downham

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

Frequently asked questions

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

Leak detection

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

Structural drying

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