Is this survey suitable for all basement types?

Yes. Whether you're in a Victorian terrace, converted warehouse, or modern flat with a lower ground level, the survey can be adapted to suit the building's structure and waterproofing challenges.

What standards are used in the survey?

All assessments are carried out in alignment with British Standard BS 8102:2022, which governs waterproofing for below-ground structures.

Does Drysolve carry out the installation?

No. I provide independent surveys only, which ensures that my advice is unbiased. I do not sell or install systems, but I can help you understand what’s needed before hiring contractors.

Can I combine this with a Pre-Purchase Survey?

Absolutely. If you’re buying a property with a basement, I recommend combining this with our Pre-Purchase Damp Survey (https://www.drysolvesurveying.co.uk/pre-purchase-surveys)for complete peace of mind.

Below-Ground Basement Waterproofing Survey in London

If you are worried about water ingress in your basement, planning a cellar conversion or struggling with below-ground damp, I offer an independent below-ground waterproofing survey in London. Diagnose the cause of water-related issues and deliver clear, evidence-led recommendations to protect your property.

Get in Touch

Why Choose Drysolve for Your Basement Waterproofing Survey?

CSSW-qualified structural waterproofing specialist
Over 10 years' experience with London’s complex property stock
Independent and unbiased assessments - no upselling of treatments
Tailored waterproofing plans aligned with BS 8102 industry standards
In-depth reporting with practical next steps and no jargon
Trusted by homeowners, buyers, and developers throughout London
Rated 5 stars for accuracy, professionalism, and reliability

Book a Waterproofing Survey Today

Protect your property with confidence.

Call 07951 930704 or email michael@drysolvesurveying.co.uk

Book Your Condensation Survey

What Is a Below-Ground Basement Waterproofing Survey?

A below-ground waterproofing survey is a specialised, non-invasive inspection focused on the lower sections of your property, including basements and cellars. These areas are particularly vulnerable to damp, water ingress, and structural deterioration, especially where older buildings and high water tables are common.

Unlike a general property survey, this assessment evaluates the external risks, internal conditions, and future use of the space, ensuring your waterproofing system meets required performance levels.

If you're considering a cellar conversion, facing persistent damp patches, or want to validate an existing waterproofing system in London, this survey is essential.

What Does the Survey Involve?

1. External Site Assessment

Checks topography, ground levels, and drainage around the property
Evaluates flood risk and hydrostatic pressure on retaining walls
Assesses whether current landscaping or paving contributes to moisture intrusion

2. Internal Basement Inspection

Identifies visible signs of moisture ingress, such as stains, damp smells, or blistered finishes
Reviews any existing waterproofing systems, including sump pumps, membranes, or tanking
Measures humidity, temperature, and structural integrity

3. Use-Case Requirement Review

Depending on how the basement will be used (storage vs. habitable space), I will assess:

The necessary grade of dryness (per BS 8102:2022)
Need for improved ventilation, insulation, or heating
Level of protection needed: Type A (barrier), Type B (integral), or Type C (drained cavity)

What You Receive in Your Survey Report

Comprehensive Written Report: Your report will clearly outline:

Current condition of below-ground walls and floors
Identified sources of water ingress or risk
Photographic evidence where appropriate
Analysis of flood risk and environmental conditions

Tailored Waterproofing System Design: Based on the findings, I’ll recommend a bespoke waterproofing plan that may include:

Barrier protection (e.g. tanking slurry)
Integral protection (water-resistant concrete systems)
Drained protection (cavity membrane systems + sump and pump)

These are designed with BS 8102 compliance in mind and customised to your property’s unique layout, materials, and use-case.

Clear Next Steps: You’ll receive a roadmap for moving forward, whether that’s:

Getting quotes from installation specialists
Upgrading existing systems
Taking preventative actions

When Should You Book a Basement Waterproofing Survey?

Before a cellar or basement conversion
When buying a property with a basement (see our Pre-Purchase Surveys)
If you’re noticing damp patches, mould, or musty smells in lower ground floors
After a flooding incident or during renovation works
If you want to check that an existing waterproofing system is fit for purpose

Why Drysolve Surveying? Independent, Experienced, Trusted.

I’m Michael, founder of Drysolve Surveying. As a fully independent surveyor, I do not sell remedial treatments or installation services. That means you can trust that my recommendations are based purely on what’s right for your property - not sales commissions.

CSSW (Certified Surveyor in Structural Waterproofing) accredited
Technical precision, with focus on longevity and compliance
Trusted by landlords, architects, buyers, and heritage property owners
As featured in our recent post on diagnosing damp

Explore client experiences on our testimonials page.

FAQs About Below-Ground Waterproofing Surveys

Book a Below-Ground Waterproofing Survey in London Today

A dry, safe basement starts with a proper diagnosis. Whether you're facing moisture problems or planning a new use for your lower ground floor, a survey from Drysolve gives you the clarity to move forward with confidence.

Get in Touch

Address

30 Dukes Place

London

EC3A 7LP

Phone

07951 930704

Email

Michael@drysolvesurveying.co.uk