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Leak Detection & Thermal Imaging

At Marshall Laurence Surveyors, our RICS Chartered Surveyors provide independent Leak Detection and Thermal Imaging Surveys across London and the South East. Using advanced technology, we pinpoint the exact cause of leaks, dampness, and insulation failures, helping you address the problem effectively.

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What is Leak Detection?

Hidden leaks, damp patches, and cold spots can cause significant damage to your property if left unresolved. Identifying the source quickly is essential to prevent further deterioration, mould growth, and costly repairs.

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What’s Included in Our Leak Detection & Thermal Imaging Surveys?

Our survey covers:

Thermal Imaging

High-resolution cameras detect heat loss, insulation gaps, and hidden moisture.

Leak Detection

Pinpointing the source of leaks within roofs, walls, floors, and pipework.

Cold Bridging Assessment

Identifying areas where poor insulation leads to heat loss and condensation.
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Moisture Readings

Using damp meters to measure water ingress and hidden moisture levels.

Condensation & Mould Checks

Highlighting areas at risk of condensation-related damage.

Repair Guidance

Clear advice on remedial works to resolve leaks and improve energy efficiency

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Our Process​

Consultation

We discuss your requirements and provide guidance on the best survey option for your needs. Upon instruction we will immediately contact the estate agent/vendor to arrange the survey for you.

Survey Appointment

A qualified RICS Chartered Surveyor visits the property to conduct a thorough inspection.

Detailed Report

You receive a comprehensive Home Buyer Report, typically within 4-5 working days of the survey.

Follow-Up Support

Our surveyors are available to set up a meeting to discuss the findings and answer any questions you may have.

Why Choose Us?

RICS Regulated & Qualified

Chartered Surveyors with specialist expertise in diagnosing structural movement.

Advanced Technology

Use of moisture meters, thermal imaging, and drone inspections where needed.

Independent & Impartial

We provide unbiased reports with no ties to contractors or insurers.

Clear, Actionable Reports

Practical advice with repair recommendations and monitoring guidance, delivered quickly.
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Receive Your Instant Quote

Our survey fees are transparent and competitive, calculated based on the property’s size, location, and value.

Request your free, no-obligation Damp Survey quote for your London property today.

Book Your Damp Survey in London

If you suspect a hidden leak, dampness, or heat loss, don’t leave it to guesswork. Our surveys provide fast, accurate answers backed by professional expertise and the latest technology.

Call us on 02080642480

Email info@marshalllaurencesurveyors.com

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Frequently Asked Questions

1. What is a Leak Detection Survey?
A Leak Detection Survey is a specialist inspection that uses advanced tools — such as thermal imaging cameras, moisture meters, and acoustic equipment — to trace the source of hidden leaks in your property without causing damage.
You should arrange a survey if you notice signs such as damp patches, mould growth, musty smells, peeling paint, unexplained water bills, or ongoing leaks you cannot trace.
Thermal imaging cameras detect subtle changes in surface temperature. This allows us to identify cold spots, hidden leaks, or areas of heat loss that are not visible to the naked eye.
Yes. While we do not open up structures, our non-invasive equipment can pinpoint moisture or leaks behind walls, under floors, and within roofs with high accuracy.
Cold bridging occurs when heat escapes through poorly insulated parts of a building, creating cold spots that can attract condensation and mould. Our surveys identify these areas using thermal imaging and provide advice on how to remedy them.
No — our surveys are non-destructive. We use technology to locate leaks without removing walls, floors, or ceilings.
Most inspections take 1–2 hours, depending on the size of the property and complexity of the issue.
We usually provide a written report with images and recommendations within 3–5 working days. Faster turnaround can be arranged for urgent cases.
Your report will include photographic evidence, clear diagnosis, and practical repair recommendations. If further investigation is needed (e.g., by a plumber or contractor), our findings can guide their work accurately.

Unlike contractors who may focus only on fixing symptoms, our role as RICS-regulated surveyors is to provide an independent, impartial diagnosis of the underlying issue — ensuring you receive trustworthy advice before committing to repairs.

What Our Customers Say​

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