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Basement waterproofing Service Locations
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At Advanced Damp, we provide specialist basement waterproofing services across London & Home Counties. Whether you’re dealing with penetrating damp, groundwater ingress, or planning a full basement conversion, our experienced team delivers long-term, compliant waterproofing solutions.
We work with homeowners, landlords, developers, and commercial clients to protect below-ground structures from water damage using proven waterproofing systems.
If you’re looking for basement waterproofing near you, select your location below to learn more about our services in your area.
Basement waterproofing across London and the South East
We design and install basement and cellar waterproofing for homes and commercial buildings across London, Surrey and the Home Counties. Every project starts with a survey by a CSSW and CSRT trained surveyor, who assesses the ground conditions, the construction of the basement and how you want to use the space before recommending a system.
Most habitable basements in London are best protected with a Type C cavity drain membrane, which manages water through a drained cavity to a sump and pump rather than trying to hold it back. Cementitious tanking (Type A) still has its place in smaller cellars and storage areas. We specify the right system to BS 8102:2022, and completed work comes with a long-term written guarantee.
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Related services
Find out more about cavity drain membranes, basement tanking, cellar tanking and sump pump installation, or read our guide to basement waterproofing costs.
Not listed? We cover most of London and the surrounding counties, so call us on 0300 373 7251 to check your postcode.
Book a waterproofing surveyRecent Basement Case Studies
Our recent basement waterproofing work includes new basement, Fulham SW6; vault to dry pantry, Canonbury N1 and basement bedroom, Notting Hill W11. 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.
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Vault to dry pantry, Canonbury N1
An unprotected lower ground floor vault waterproofed with a Type C cavity drain membrane, perimeter drainage and a dual pump sump, ready to use as a pantry.
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Basement bedroom, Notting Hill W11
Rising damp on two walls and damp below the stairs, treated with DPC, tanking slurry and waterproof render.
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