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

Damp, Mould & Leak Specialists in Mortlake

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

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

We survey 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

★★★★★

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 Mortlake

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

Frequently asked questions

How much does a damp survey in Mortlake 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 Mortlake?
Yes. We survey 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 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.