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Longfield · DA3

Damp, Mould & Leak Specialists in Longfield

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

★★★★★ 4.9 from 17 Google reviews · trusted by Longfield homeowners, landlords & property managers
Quick answer: If you have damp, mould or a suspected water leak at a property in Longfield, 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 Longfield

Longfield's housing stock is a varied mix of post-war semis, 1960s and 1970s estates, Victorian and Edwardian cottages in the older village core, and newer detached properties built on former orchard and agricultural land. This combination of ages, construction methods and local clay-heavy ground conditions creates persistent risks of damp ingress, condensation and groundwater-related 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 Longfield we cover

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

Common damp problems in Longfield homes

Rising Damp in Longfield's Older Village Properties

The Victorian and Edwardian cottages found along Longfield's original village core frequently lack effective damp-proof courses, or have original bitumen membranes that have deteriorated over decades. Combined with Longfield's heavy London clay subsoil, which retains moisture and drains poorly, groundwater pressure against ageing masonry causes rising damp to track up internal walls, leading to salt staining, peeling plaster and mould growth at low levels.

Penetrating Damp in Post-War Semis on Longfield's Estates

The 1950s to 1970s semi-detached and terraced properties common across New Barn and Longfield Hill were built using cavity wall construction, but years of settlement, pointing erosion and poorly installed cavity wall insulation have created pathways for rainwater to bridge the cavity. Penetrating damp in these homes typically appears as damp patches on chimney breast walls, under window sills and around external door frames, particularly following prolonged wet weather.

Hidden Leaks and Condensation in Newer Longfield Developments

More recent residential developments on the edges of Longfield and in areas such as Fawkham Green have seen an increase in hidden plumbing leaks within concealed pipe runs beneath ground-floor slabs and inside stud partition walls. Poor ventilation in tightly sealed modern builds also drives persistent condensation in bathrooms, kitchens and roof spaces, resulting in black mould on window reveals, ceiling junctions and behind fitted furniture where airflow is restricted.

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

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 Longfield

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

Frequently asked questions

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