Salt testing
Flaking paint and crumbling plaster low down on a wall can point to rising damp. Salt testing checks for hygroscopic salts carried up from the ground, confirming the real cause so the right fix is recommended first time.
Damp & moisture surveys
Find out exactly where the moisture is, how far it has spread and what's really causing it, before you spend money on the wrong repair.
Overview
What we do
Damp is one of the most misdiagnosed problems in UK homes. Condensation, a hidden leak, penetrating damp and rising damp can all look alike, but each needs a completely different fix.
Our surveys use proper instruments, not guesswork, to measure where moisture is and trace it back to its source. Ideal when you've spotted damp patches, peeling paint or a musty smell, after a leak, or before buying or letting a property.
What's included
- Visual inspection inside and outside the property
- Room-by-room readings with electronic moisture meters
- Thermal imaging to reveal hidden damp and cold spots
- Temperature, humidity and dew point readings to assess condensation risk
- Salt testing to check for hygroscopic salts linked to rising damp
- Borescope camera inspection of voids where needed
- Written report with photos and clear recommendations
In detail
What makes our surveys different
External inspections
Many damp problems start outside: cracked downpipes, blocked gutters, failed pointing or damaged brickwork. We inspect the outside of the property too, so penetrating damp is traced to where the water is getting in.
Air quality testing
Temperature, relative humidity and dew point readings show whether condensation is behind the problem and how well the property is ventilated. Useful where mould keeps coming back.
Borescope camera inspections
A small camera on a flexible cable lets us look inside wall cavities, ceiling voids and floor voids through a tiny hole, without opening anything up.
Our equipment
The kit behind every survey
Electronic moisture meters
Readings from walls, floors and ceilings to map moisture levels and track how far it has spread.
Thermal imaging
Finds cold bridging, hidden leaks and concealed condensation points you can't see by eye.
Hygrometers
Temperature, relative humidity and dew point readings to assess condensation risk and ventilation.
Salt analysis
Tests for hygroscopic salts linked to rising damp, to confirm the true source of moisture.
Case studies
See all our work
Recent jobs
Reading
Moisture survey after a roof leak
A leak from the roof had stained and damaged the ceiling and walls. We carried out a moisture survey to map how far the water had spread and what needed to happen next.
Damp & Moisture Surveys
Isleworth
Tenants reporting mould on window sills
We were called out because tenants were complaining of mould around the windows. We assessed the cause so the landlord and tenants knew exactly what needed fixing.
Mould RemovalWarning signs
Signs you may need a damp survey
Damp patches or water stains
Peeling paint or blown plaster
Tide marks low down on walls
A persistent musty smell
Cold, damp-feeling walls
Mould that keeps coming back
FAQs
Damp & Moisture Surveys questions
What is a salt test and do I need one?
Rising damp carries salts up from the ground into the wall. Those salts attract moisture from the air, so a wall can stay damp even after the original problem is fixed. A salt test tells us whether they're present, which helps confirm the true cause and whether contaminated plaster needs replacing. We'll tell you if your survey needs one.
Is a damp survey worth it before buying a house?
Yes. If you've noticed damp patches, a musty smell or fresh redecoration in odd places, a survey gives you facts before you commit, and evidence to negotiate with if problems are found.
Do you inspect the outside of the property?
Yes. Many damp problems are caused by defects outside, such as gutters, downpipes, brickwork, pointing or render, so an external inspection is part of our survey.
How much does a damp survey cost?
Every property is different, so we'll confirm the price before booking. Our surveys are offered at competitive rates, and we'll always tell you upfront if a survey is needed or whether we can advise from photos.
Will I get a written report?
Yes. You'll receive a clear report with photos, readings, our conclusions on the cause and practical recommendations, for your own records, a landlord or your insurer.
Helpful advice
Read before you book
What happens during a damp survey?
A step-by-step look at what a professional damp survey involves, the equipment we use and what you get at the end.
Damp or condensation? How to tell the difference
Condensation, leaks, penetrating damp and rising damp can look alike, but each needs a different fix. Here's how to tell them apart.Other services
Free quotes from photos · 24/7 emergencies
Not sure what's causing your damp?
Send us a few photos on WhatsApp. We'll tell you whether a survey is needed and what it would involve. Surveys are available at competitive rates.