Waterproofing Survey London
An independent waterproofing survey from a certified surveyor: a clear diagnosis of how and why water is getting in, and exactly what it will take to stop it. An honest report, not a sales pitch, across London and the South East.
- ✓ Independent diagnosis: an honest report on the real cause, with no pressure to proceed
- ✓ Designed to BS 8102:2022: the British Standard for below-ground waterproofing
- ✓ 10-year guarantee: on any waterproofing works we carry out
Certified Surveyors
FODCS certified and CSSW-qualified waterproofing surveyors.
Independent Diagnosis
An honest report on the real cause, with no pressure to buy.
London & South East
Local damp and structural waterproofing specialists.
Fee Deducted From Works
Your survey fee comes off the cost of works if you proceed with us.
As Seen In
Waterproofing Surveys in London: Find the Cause, Then Fix It
A waterproofing survey is a specialist inspection that works out how and why water is getting into a building, usually a basement, cellar, or below-ground or structural area, and sets out exactly what is needed to keep it dry.
It goes further than a general damp survey. Rather than diagnosing surface damp, it assesses the structure against water pressure and specifies the right waterproofing system, designed to BS 8102:2022, the British Standard for protecting below-ground structures against water ingress.
Every survey is carried out by a certified surveyor who diagnoses the real cause first. You get a clear written report and a fixed-price quote, with no pressure to proceed.
Why a Waterproofing Survey Is Essential
Water under pressure is unforgiving. The wrong system, or the right system specified for the wrong cause, leads to repeat failures and wasted money. A lot of "free surveys" are really just a route to an oversized quote. We do it differently: the survey comes first and stands on its own, so you get an honest diagnosis even if the problem is smaller, or different, than you feared. The survey lets us:
- ✓ Identify the true source of the water
- ✓ Assess the structure and water pressure
- ✓ Specify the correct system to BS 8102:2022
- ✓ Avoid unnecessary or oversized works
If you proceed with the works, your survey fee is deducted from the cost.
What Is Included in Our Survey
Every waterproofing survey includes:
- ✓ Inspection by a certified surveyor
- ✓ Moisture readings and full assessment
- ✓ Diagnosis of the cause of water ingress
- ✓ Structural and below-ground review
- ✓ Written report and recommendations to BS 8102:2022
- ✓ A fixed-price quotation
A thermal imaging survey can be added where it helps trace a hidden moisture path.
Types of Waterproofing Survey We Carry Out
- ✓ Basement and cellar waterproofing survey, including before a conversion
- ✓ Structural waterproofing survey and system specification
- ✓ BS 8102 design and commercial survey for new-build and projects
- ✓ Pre-purchase waterproofing survey where water below ground is flagged
- ✓ Leak and failure investigation on an existing system or tanking
Who Our Waterproofing Surveys Are For
Our surveys are suitable for:
- ✓ Homeowners with water or damp in a basement, cellar or lower ground floor
- ✓ Anyone planning to convert or finish a basement that must be dry first
- ✓ Buyers where a building survey has flagged damp or water below ground
- ✓ Commercial and new-build projects needing a design to BS 8102:2022
- ✓ Owners of a failing waterproofing system or tanking that is leaking
Correct diagnosis matters, because each cause of water ingress needs a different waterproofing approach.
What Our Customers Say About Our Surveys
A very thorough report
"The surveyor did a very thorough report and the work was mainly carried out by Marcel who is absolutely fantastic, knowledgeable about his work and finishes the plastering to a great finish."
Konrad Wolkowinski · Google reviewClear diagnosis on site
"The team arrived on time, looked at the problem and informed me on what was needed to fix it. They resolved my damp and left me with instructions for further actions. Very happy with the job!"
David Hanley · Google reviewProfessional and fast
"Sam was extremely professional. Great communication and very punctual. We had an issue with rising damp on our chimney breast and Sam came out to us the very next morning. Highly recommended."
Jo Webb · Google reviewYour Waterproofing Surveyor
Michael Young
Technical Manager & CSSW Waterproofing SurveyorMichael leads the technical standards at Advanced Damp and carries out waterproofing surveys across London. CSSW-qualified, he specifies structural waterproofing, tanking and cavity drain systems to BS 8102:2022 for basements, cellars and below-ground structures. Every report sets out the cause, the affected areas and the correct system in plain English.
Meet the full team →London Coverage From Our Fitzroy Street Office
See our full basement waterproofing in London coverage.
Frequently Asked Questions
How much does a waterproofing survey cost?
The fee depends on the size and type of property, so we confirm a fixed price when you book. If you proceed with the recommended works, the survey fee is deducted from the cost of works, so the diagnosis effectively costs you nothing.
What does a waterproofing survey involve?
A certified surveyor inspects the affected area, takes moisture readings, assesses the structure and water pressure, and diagnoses how and why water is getting in. You then receive a written report with recommendations designed to BS 8102:2022 and a fixed-price quote.
How long does a waterproofing survey take?
Most surveys take between one and two hours on site, depending on the size of the area and how much access is available. The written report follows shortly afterwards.
What is the difference between a waterproofing survey and a damp survey?
A damp survey focuses on diagnosing damp such as rising or penetrating damp and condensation. A waterproofing survey goes further on water under pressure, typically below ground, and specifies a waterproofing system to BS 8102:2022. If you are not sure which you need, we will advise you.
Does a standard homebuyer survey check for water below ground?
Only at a basic level. A homebuyer or building survey may flag possible damp and recommend a specialist inspection, but it will not diagnose the cause or specify a waterproofing solution. That is what a dedicated waterproofing survey is for.
Is the survey independent, or just a way to sell me treatment?
The survey stands on its own. You get an honest diagnosis and a clear recommendation with no pressure to proceed, and if the issue is smaller or different than expected, we will tell you. If you do choose us for the works, the survey fee is deducted from the cost.
Related Waterproofing Services
Book a Waterproofing Survey
Get a clear, honest diagnosis from a certified surveyor, with recommendations to BS 8102:2022 and the survey fee deducted from the cost of works if you proceed. Covering London and the South East.