
- Home
- Surveys & Testing
- Damp & mould survey
Measured first, specified second.
Moisture readings, a written diagnosis and a recommendation, across Chertsey and Surrey. Before anybody quotes for work.
Three problems that look the same
On a wall they can be hard to tell apart. They want completely different work, and that is why the survey comes before the quotation.

Condensation, from inside
Moist air meeting a cold surface. Corners, behind furniture, around windows, and worst in winter. A ventilation and insulation problem.
Penetrating damp, from outside
A gutter, a roof, failed pointing, a bridged cavity. A patch that follows the weather. Finding the path is the job.
Rising damp, from below
Low down, along a wall, often with a tide mark. Genuinely rare, and diagnosed far more often than it occurs.
And sometimes more than one
A cold, damp corner in a house with a leaking gutter is both. Measuring is what separates them.
What the survey involves
- Moisture readings
- Protimeter readings across the affected areas and control readings elsewhere, so the numbers mean something.
- Humidity and temperature
- Internal conditions recorded, because condensation is about the relationship between the two.
- Where the cold surfaces are
- Thermal imaging where it helps, because condensation appears on the coldest surface first.
- Outside as well as in
- Gutters, pointing, ground levels, air bricks and the damp proof course. Most penetrating damp is diagnosed from outside.
How it runs
A date
Usually within a week, sooner if there is a health concern.
One to two hours
Readings inside and out, and a look at what changed in the house before it started.
The report
Readings, diagnosis and recommendation, in writing.
A quotation
For the work the survey actually recommends, not for a standard package.
Re-measured
So you can see the readings change rather than take our word for it.
After the report lands
A survey is only worth having if somebody acts on it.
The report, in writing
Findings, readings and recommendations, in a document you keep and can show to anybody else.
We will tell you what not to do
Reports generate lists. We will say which items matter on your property.
Work we then do is guaranteed
Two years on our workmanship, in writing, transferable and insurance-backed.
Questions after the report
The surveyor and the installer are the same company.
Two things people ask about next
Both have a page of their own.
The questions we get asked most
Is black mould dangerous?
It is worth dealing with rather than living alongside. If anyone in the house has a respiratory condition, treat it as a priority and tell us when you book.
Is my mould rising damp?
Almost certainly not. Mould in corners, behind furniture and around windows, worst in winter, is condensation.
Why not just quote for the work?
Because damp work specified without measuring is how people pay twice. The survey costs less than the wrong fix.
Do you do damp proof injection?
Where a survey genuinely shows rising damp, yes. It is diagnosed far more often than it occurs, which is exactly why we measure first.
Will you clean the mould off?
Visible mould can be cleaned, and it comes back unless the moisture is dealt with. Fixing the cause is the job.
How long does the survey take?
One to two hours at the property, and the written report follows.



















Often worth doing at the same time
Same team, same survey, one visit where it makes sense.
Book a damp and mould survey
Tell us what you are seeing and when it appears. Send a photograph if that is easier.
- A fixed price, confirmed before we book
- Moisture readings and a written diagnosis
- Sooner where there is a health concern in the house
- Weekdays 8am to 5pm, on 01932 550828
Tell us what you are seeing.
Where it is, when it appears, and what changed in the house. A photograph helps. We will tell you what it looks like before you book anything.


