Riverside basement specialists · Putney, London
Basement Waterproofing in Putney
Putney sits on the tidal Thames, and the river gravel deposits beneath the area keep groundwater levels higher and more active than almost anywhere else in South West London. Advanced Damp installs specialist basement waterproofing, basement tanking, cellar tanking, and structural waterproofing systems for Putney properties, designed around riverside geology rather than adapted from an inland template.
Over 30+ Years
Below-ground waterproofing across London and the South East.
CSSW Surveyors
Systems designed and specified to BS 8102:2022.
10-Year Guarantee
Written guarantee on all new waterproofing installations.
CHAS Accredited
Fully insured, fixed-price quotations after survey.
Why the Thames Makes Putney a High-Risk Area for Basement Damp
Most London boroughs sit on flat beds of London Clay, where water drains slowly, and basement issues usually involve steady, predictable moisture pressure. Hampstead is different. Putney's below-ground water problem is directly tied to the river. Thames gravel and alluvial deposits underlie most of the area, particularly between the High Street and the Embankment, and unlike London Clay, these deposits are permeable. Groundwater moves through them and responds to tidal cycles and rainfall rather than sitting still.
Streets like Deodar Road and Lower Richmond Road sit inside this gravel zone. Further uphill towards Putney Heath, London Clay takes over, bringing steadier but equally persistent lateral pressure. In both cases, a waterproofing survey is the essential first step before any system is specified.
Why Putney Basements Need It
Putney's riverside position creates groundwater conditions that stay elevated year-round, not just after heavy rain. Common local risk factors include:
Left untreated, groundwater pressure leads to salt staining, mould growth, plaster failure and, where ground-floor joists sit above a wet void, dry rot that spreads fast in Putney's riverside humidity.
Our Waterproofing Systems
Putney's Thames-influenced groundwater does not behave the same way as inland clay moisture. We specify systems matched to the area's actual conditions, confirmed by a waterproofing survey before anything is recommended.
Type A · Cementitious Tanking
Suited to Putney properties on higher ground towards the Heath, where London Clay creates steady but lower-volume moisture pressure. Best for storage cellars and lower-risk spaces.
Basement tanking →Type C · Cavity Drain Membrane
Our standard specification for Riverside Putney. Channels fluctuating Thames gravel groundwater safely to a sump and pump are the only reliable long-term solution where water pressure is unpredictable.
Cavity drain membrane →For riverside apartment conversions or new basement additions on large Putney family homes, see our structural waterproofing and cellar tanking services structural waterproofing and cellar tanking.
How We Work
Riverside Ground & Assessment
A CSSW surveyor identifies whether your Putney property sits on Thames gravel or London Clay, two very different risks, before recommending anything.
System Design & Fixed Price
We specify the right system to BS 8102:2022 and provide a fixed price in writing before any work begins.
Installation & Guarantee
Our own teams carry out every installation, no subcontracting. A written 10-year guarantee is issued on completion.
Why Choose Advanced Damp in Putney?
What Our Customers Say
"We had damp proofing work carried out recently, and I’m really pleased with the service. The team was friendly and professional and explained everything clearly before starting. The work was done efficiently, and the property was left clean and tidy afterwards. Communication was great throughout. I have waited the recommended drying time, and the issue now seems completely resolved."
Charlotte, Trustpilot"Thank you so much to Advanced Damp Solutions.I have been struggling with damp issues in my home for a few years, and I finally bit the bullet. Thank you for your insight and support in getting my damp issue fixed, All the best!"
Mica Thornton, Google ReviewsPutney Basement Waterproofing FAQs
Does living close to the Thames make my Putney basement more likely to have damp?
Yes. Thames gravel deposits beneath Putney keep groundwater elevated and tidal standard damp proofing is not designed for this. A specialist waterproofing system is required.
My Putney basement has been tanked twice and still leaks why?
Cementitious tanking bonds to masonry and fails when groundwater pressure fluctuates exactly what happens near the Thames. A Type C cavity drain membrane manages that variable pressure rather than resisting it.
Can you waterproof a lower-ground flat near the river for habitable use?
Yes. Riverside conversions need a Type C system with a twin-pump sump and high-water alarm. A thermal imaging survey maps moisture extent before works begin.
How much does basement waterproofing cost in Putney?
Most projects fall between £6,500 and £14,000 + VAT, depending on size and whether remedial stripping is needed. Fixed price confirmed after survey; no call-out charge.
Do you cover East Putney, West Putney, and Roehampton?
Yes we cover the full Putney area including East Putney, West Putney, Roehampton and Putney Heath, plus neighbouring Wandsworth and Barnes.
Is the work guaranteed?
Yes, every installation carries a written 10-year guarantee. For riverside properties with higher pump demand, we advise on annual sump servicing.
Related Services
A Real London Type C Project
Residential Basement Waterproofing Case Study
Discover how we transformed a leaking basement in Fulham with a professional waterproofing system designed to keep the property dry for years to come. Our proven process is suitable for homes across Putney and surrounding areas.
Local Basement Waterproofing Specialists in Putney
Keeping Putney basements dry is what we do best. We deliver expert surveys and bespoke waterproofing systems designed to protect your property and maximise usable basement space.
Book a Putney Basement Waterproofing Survey
Putney's riverside groundwater is among the most active in South West London. A CSSW surveyor will assess your property's specific position, Thames gravel or London Clay, identify what is driving the moisture, and give you a fixed price in writing before anything is agreed. Survey fee credited against the cost of works if you proceed.