Speak to a Specialist
Speak to a Specialist
Mortlake · SW14, TW9

Damp Survey Mortlake: 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 Mortlake 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 Mortlake, 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 Mortlake

Mortlake's housing stock is dominated by Victorian and Edwardian terraces, late-Georgian riverside properties and mid-twentieth century infill housing. The proximity to the Thames raises groundwater levels and increases ambient humidity, while older solid-wall construction and original timber window frames make these properties particularly susceptible to penetrating damp, rising damp and persistent condensation issues.

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 Mortlake we cover

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

Common damp problems in Mortlake homes

Rising Damp in Victorian Terraces

Many of Mortlake's Victorian terraced streets, particularly around Sheen Lane and Worple Street, were built without modern damp-proof courses or with original slate membranes that have since deteriorated. Groundwater drawn upward through solid brick walls causes tide marks, salt efflorescence and crumbling plaster at low levels, often misidentified by homeowners as superficial decoration problems rather than structural moisture ingress.

Penetrating Damp on Riverside Properties

Properties along Lower Richmond Road and the Mortlake riverfront face persistent penetrating damp driven by prevailing south-westerly winds and heavy rainfall striking ageing brickwork, repointed mortar and period stone lintels. Water tracks through cracked render, failed window reveals and deteriorating parapet copings, appearing internally as damp patches on upper-floor walls and ceilings that worsen noticeably through autumn and winter.

Condensation Mould in Converted and Subdivided Properties

Mortlake contains a significant number of large Victorian villas converted into flats, particularly around North Sheen and East Sheen borders. Subdivided layouts frequently reduce natural ventilation, eliminate through-draughts and create cold thermal bridging at internal partition walls. This generates sustained condensation on north-facing walls and within built-in cupboards, leading to black spot mould growth that repeatedly returns without addressing the underlying ventilation deficiency.

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 Mortlake

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 Mortlake.

Frequently asked questions

How much does a Damp, Mould and Water Damage Assessment in Mortlake 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 Mortlake?
Yes. We visit properties across Mortlake 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 Mortlake

Leak detection

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

Structural drying

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

Mould removal

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

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