Proud member of the Federation of Damp
Below-ground waterproofing specialists · Fulham, SW6
Basement Waterproofing in Fulham
Specialist basement and cellar waterproofing for Fulham's Victorian and Edwardian properties. We design systems that manage and control water rather than mask it, for dry, usable below-ground space backed by a long-term guarantee.
Newton Approved
Below-ground waterproofing across London and the South East.
CSSW and CSRT Trained Surveyors
Systems designed and specified to BS 8102:2022.
Long-Term Guarantee
Written guarantee on all new waterproofing installations.
CHAS Accredited
Fully insured, fixed-price quotations after survey.
Waterproofing for Fulham Basements
Advanced Damp is a specialist contractor providing basement and cellar waterproofing across Fulham and the wider SW London area. Fulham's housing stock, particularly its Victorian and Edwardian terraces, frequently includes basements and semi-subterranean levels that are exposed to ground moisture, hydrostatic pressure and lateral water ingress. Our systems are designed to manage and control that water effectively, not simply cover the surface symptoms.
We waterproof basement conversions, cellar refurbishments, retaining walls, lower-ground flats and commercial basement spaces. This page covers our work in Fulham specifically; for the full picture of our approach, systems and project examples, see our main London basement waterproofing page.
Why Fulham Basements Need It
Fulham's property and ground conditions make below-ground spaces particularly vulnerable, and standard damp proofing is not designed for the pressure a basement faces. Common local factors include:
Left untreated, this moisture pressure leads to peeling plaster, salting and efflorescence, mould growth, timber decay and, over time, structural deterioration.
Our Waterproofing Systems
We install industry-recognised systems tailored to the structure and intended use of the space. A survey establishes which is right for your basement.
Type A · Cementitious Tanking
A bonded waterproof coating applied directly to masonry to resist water penetration. Suited to retaining walls, solid brick basements and lower-risk moisture situations.
Basement tanking →Type C · Cavity Drain Membrane
A studded membrane that manages water rather than blocking it, channelling it to drainage and a sump or pump. The usual choice for habitable conversions and high water-table areas.
Cavity drain membrane →For larger or commercial projects, see our work on structural waterproofing and cellar tanking.
How We Work
Survey & Assessment
A CSSW and CSRT trained surveyor assesses the structure, water risk and how you intend to use the space.
System Design
We specify the right system to BS 8102:2022 and give you a clear, fixed-price proposal.
Installation & Guarantee
Our team installs the system and hands it over with a written long-term guarantee.
Why Choose Advanced Damp
What Our Customers Say
"Incredibly professional and knowledgeable. They took the time to explain the issues and recommend the best solution, and were prompt with a detailed survey report that really helped me understand the problem areas in my property."
Bruce"Very impressed with Advanced Damp. They were professional, explained everything clearly, and fixed the problem in no time. Highly recommended."
JanePlanning work on a basement in Fulham?
The right system depends on how water reaches your walls and floor. A survey finds that first, so the design fits your property and the price is fixed before anything starts.
Book a Basement SurveyCall 0300 373 7251- 1. Book online or callPick a time that suits you.
- 2. Surveyor visitsMoisture readings, water source and the condition of the walls and floor.
- 3. Written specificationThe right system for your basement, with a fixed price and no obligation.
Accredited & Trusted
Recent Basement Work in West and South West London
Our recent basement waterproofing work includes new basement, Fulham SW6; basement bedroom, Notting Hill W11 and lower ground flat, Wandsworth SW18. Each case study sets out what the survey found and how the problem was fixed.
New basement, Fulham SW6
A Type C cavity drain membrane system installed to a newly built lower ground floor, designed to BS 8102:2022 for a Grade 3 dry, habitable space.
Read the case study →
Basement bedroom, Notting Hill W11
Rising damp on two walls and damp below the stairs, treated with DPC, tanking slurry and waterproof render.
Read the case study →
Lower ground flat, Wandsworth SW18
Bedroom mould from condensation and groundwater. Type C waterproofing, smart fans and a mould wash.
Read the case study →Fulham Basement Waterproofing FAQs
Do I need basement waterproofing for a Fulham property?
If your Fulham basement or lower-ground level shows damp, salting, mould or musty smells, or you are converting it into usable space, then yes. Fulham's period brickwork and proximity to the Thames mean below-ground walls face constant moisture pressure that standard damp proofing is not designed to handle. A survey confirms the level of risk and the right system.
What waterproofing system is best for a Fulham basement?
It depends on the structure and how you want to use the space. Type A cementitious tanking resists water and suits sound retaining walls and storage cellars, while Type C cavity drain membrane manages water and is usually preferred for habitable conversions and high water-table areas. Our surveyor specifies the correct system after assessing the property.
Can you waterproof a basement for a habitable conversion?
Yes. Most Fulham basement conversions use a Type C cavity drain membrane system with perimeter drainage and a sump and pump where needed, designed to BS 8102:2022. This creates a reliably dry, usable living space while keeping the drainage maintainable for the long term.
How much does basement waterproofing cost in Fulham?
Cost depends on the size of the basement, the system specified and whether a sump and pump are required. As a guide, waterproofing a habitable London basement typically falls between 6,500 and 12,000 pounds plus VAT. We always provide a fixed price after a survey.
Is the waterproofing guaranteed?
Yes. New waterproofing installations carried out by our team carry a written long-term guarantee, and because a Type C system is maintainable it can be serviced over its life.
Do you cover all of Fulham and SW London?
Yes. We cover Fulham, SW6 and the surrounding areas of South West London, including Parsons Green, Putney, Hammersmith and Chelsea. Call us or request a consultation and we will arrange a survey.
Related Services
Book a Fulham Basement Survey
A CSSW and CSRT trained surveyor will assess your basement and water risk, then specify the right system to BS 8102:2022 with a fixed price.