Speak to a Specialist
Speak to a Specialist
Hampstead · NW3, NW6, NW11

Damp Survey Hampstead: Damp, Mould and Water Damage Assessment

The Assessment (what many people call a damp survey) is one non-destructive visit that finds the cause of damp, mould or a hidden leak across Hampstead and the surrounding area, with a clear, insurance-ready report.

★★★★★ 5.0 from 22 Google reviews
Quick answer: If you have damp, mould or a suspected water leak at a property in Hampstead, your first visit is a Damp, Mould and Water Damage Assessment. Our specialists carry out a non-destructive investigation to find the root cause, then give you a written report with photographs and a clear plan to fix it. Your report follows within 3 to 5 working days of the visit. We confirm the price on a written quote once we understand the problem. Call 020 3051 8478.

Damp, mould & leak services in Hampstead

Hampstead's housing stock is dominated by Georgian and Victorian terraces, substantial Edwardian villas, purpose-built Edwardian mansion blocks and a scattering of interwar semis. Many properties retain original solid brick walls, aged slate roofs and Victorian drainage systems, all of which make them particularly vulnerable to penetrating damp, rising damp and concealed plumbing leaks.

Leak Detection

Trace hidden water leaks without damage using thermal, acoustic and tracer-gas methods. Leak detection →

Damp, Mould and Water Damage Assessment

One visit that finds the cause of damp, mould or water damage, and tells rising damp, penetrating damp and condensation apart. About the Assessment →

Mould Treatment

Treat black mould and deal with the moisture source behind it, so it does not keep coming back. Mould treatment →

Structural Drying

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

Areas of Hampstead we cover

We visit properties right across Hampstead and its neighbourhoods, including:

Common damp problems in Hampstead homes

Penetrating Damp in Victorian and Georgian Terraces

Hampstead's older terraced properties were built with solid brick walls rather than modern cavity construction, meaning there is no air gap to interrupt moisture driven inward by wind and rain. The elevated position of much of Hampstead exposes these facades to significant weather, and where pointing has eroded or render has cracked, rainwater penetrates directly into internal walls, causing staining, plaster failure and mould growth.

Basement and Lower Ground Floor Moisture in Converted Villas

Many of Hampstead's large Victorian and Edwardian villas have been converted into flats, with lower ground floor units sitting partly below or at ground level. Original tanking and drainage on these properties is frequently inadequate or has deteriorated, allowing groundwater and surface water to seep through foundations and floor slabs, producing persistent damp patches, efflorescence on brick and musty conditions that are difficult to resolve without specialist investigation.

Condensation and Hidden Leaks in Edwardian Mansion Blocks

Belsize Park and South Hampstead contain a high concentration of Edwardian mansion blocks with thick external walls, communal pipe runs and ageing cast iron or lead plumbing. Poor ventilation in converted layouts traps moisture from daily living, encouraging black mould on cold external walls and within built-in cupboards. Shared pipe chases also mean slow leaks from neighbouring flats can remain hidden for months before becoming visible.

What our customers say

Excellent
Rated 5.0 / 5 based on 22 reviews on
Tip: If a damp patch keeps coming back after redecorating, it is almost always a symptom, not the problem. An assessment that finds the source first saves paying for the same repair twice.

Request an Assessment in Hampstead

Call 020 3051 8478 or send us your details and we will agree a date with you. We work with homeowners, landlords and property managers across Hampstead.

Frequently asked questions

How much does a Damp, Mould and Water Damage Assessment in Hampstead cost?
We confirm the price on a written quote once we understand the problem. Your first visit is a Damp, Mould and Water Damage Assessment, which includes the non-destructive investigation and an insurance-ready written report with photographs. If leak detection is needed, we quote for it separately before any work starts.
Do you cover the whole of Hampstead?
Yes. We visit properties across Hampstead 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 assessment identifies which type you have using moisture readings and thermal imaging.
Do you provide reports for insurance claims?
Yes. Every assessment comes with a clear written report including the cause, photographic evidence and recommendations, formatted for insurers and managing agents. Your report follows within 3 to 5 working days of the visit.

More help in Hampstead

Leak detection

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

Structural drying

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

Mould removal

Treat black mould in your Hampstead property and fix the moisture source behind it. Mould removal in Hampstead →

See what you get before you speak to us: read a real report from start to finish.