Basement Tanking in London

Professional waterproofing to keep your basement dry, safe, and usable

At London Damp Solutions, we specialise in professional basement tanking that safeguards your property against water ingress and damp. The method depends on the structure: tanking slurry, tanking membranes, tanking walls or cellar tanking. We cover London and Surrey. Whether you’re converting your cellar into a living space or simply want to protect your foundations, our tailored solutions provide lasting peace of mind.

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Why Basement Tanking Matters

Basements and cellars are naturally at risk of water seepage due to their below-ground position. Left untreated, moisture can cause structural damage, mould growth, and loss of valuable living space. Basement tanking creates a watertight barrier on walls and floors, ensuring your space stays dry, healthy, and ready for use.

Benefits include:

  • Long-term protection against damp and leaks
  • A safe foundation for basement conversions
  • Increased property value and usable square footage
  • Healthier living environment by reducing mould and mildew risks
  • Lower repair and maintenance costs over time

See more about our damp-proofing services here.

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Our Basement Tanking Process

Every property is unique, which is why our process always begins with a detailed damp survey.

1
Inspection & Survey

Our trained surveyors assess the basement for signs of water ingress, cracks, or damp patches.

2
Surface Preparation

We carefully clean and prepare the walls and floors to ensure the chosen tanking system bonds effectively.

3
Tanking Installation
Using high-quality membranes and materials, we install a continuous waterproof barrier across basement walls and floors.
4
Additional Protection
Where required, we recommend complementary damp-proofing or ventilation solutions to maximise long-term results.

The result is a dry, secure basement ready for storage, a home office, or a full conversion project.

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Expertise You Can Trust

London Damp Solutions is led by a team with over 15 years of experience in property preservation and damp proofing. Our specialists, including surveyor James, hold industry-recognised credentials and are members of the National Register of Property Preservation Specialists.

Our reputation is built on transparent surveys, honest recommendations, and high-quality workmanship. With dozens of five-star Google reviews from satisfied homeowners across London, you can trust us to deliver effective, future-proof waterproofing.

Keep Your Home Looking Like New For Years To Come

Why Choose London Damp Solutions?

1
Specialist Knowledge
Experienced damp proofing team with in-depth knowledge of basement waterproofing.
2
Family-Run Business
Local, approachable, and committed to excellent service.
3
Tailored Solutions
Every property is different; we recommend what works best for you, not a one-size-fits-all approach.
4
Proven Results
Our tanking systems are tried, tested, and designed to last.
5
Fully Accredited
Members of recognised trade bodies, with insurance-backed guarantees for your peace of mind.

Hear From Our Clients

Google
David Richardson profile picture
David Richardson
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James responded quickly to our original query about dealing with our dry rot problem, he understood our requirements, promptly provided a quote and answered our queries. Will be able to comment further when the work is carried out.
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Graziano Mottola profile picture
Graziano Mottola
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Really happy with the service! James was super professional when he came to inspect the property and explained everything clearly. Denise was very helpful and always quick to reply and organise things. Ram did an excellent job — very professional, finished everything perfectly and left the place spotless.
Google
Sathia Asogan profile picture
Sathia Asogan
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I spoke to James over the phone when their workers were doing some work at my neighbours. He was very clear and prompt with his response. Then I booked an appointment for him to visit my property to inspect for rising damp. James arrived within the time span given and was very patient in explaining the problem and gave us a quote within the time scale he promised. His pricing is reasonable and quote has clear explanation of what would be done and what is the requirement from us. We have now decided to go ahead and complete the work with them. Excellent communication & customer service so far.
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Troy Cooke profile picture
Troy Cooke
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James is great. I really appreciate his attention to detail.
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Phil Norvell profile picture
Phil Norvell
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
The staff were professional, friendly and knowledgeable.
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Alex Elam profile picture
Alex Elam
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Good experience so far with London Property Preservation, who came to quote me on some damp works. Courteous and punctual and professional
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Matthew Fox profile picture
Matthew Fox
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James did an excellent job inspecting and reporting on a woodworm issue before we purchased our house. His report was clear and easy to understand, and he was very helpful when I called to discuss the implications and the works needed. Highly recommended!
Google
Liz Citron profile picture
Liz Citron
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I've only had a site inspection and quote from London Property Preservation so far but that experience was very smooth and helpful and I intend to go ahead with using them to deal with the damp I have in my kitchen.
Google
Peter Thoms profile picture
Peter Thoms
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
James was extremely helpful in addressing our damp problem and following up the initial work with advice and information about future proofing any recurring problems
Google
Molly Whitehouse profile picture
Molly Whitehouse
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Had a brilliant experience with James - he arrived on time, was very helpful in explaining exactly what needed to done and provided the requested quote much faster than expected. Denise was also brilliant and helpful - a very pleasant experience all round!

Kickstart Your Damp Proofing With Our Free Damp Surveys

Signs You May Need Basement Tanking

Not sure if tanking is right for you? Look out for:

  • Damp or wet patches on walls or floors
  • Musty odours or mould growth
  • Peeling paint, flaking plaster, or bubbling wallpaper
  • Cracks that allow water seepage
  • Rust or corrosion on basement fixtures

If you’ve noticed any of these, book a free survey today before the problem worsens.

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Basement Tanking for Homes and Businesses

We work with both homeowners and commercial property owners across London. Whether you’re preparing a cellar conversion in a Victorian terrace or protecting storage space in a commercial building, our team delivers effective, tailored waterproofing for basements and other areas of your home. See all of our waterproofing services here.

Frequently Asked Questions

Basement tanking is a waterproofing method that applies a protective membrane or coating to below-ground walls and floors, preventing water ingress.

Timescales vary depending on basement size and condition, but most projects are completed within a few days to a week.

When installed correctly and combined with good drainage and ventilation, basement tanking provides long-term protection.

Yes, once the system has cured, the basement can be used safely and even converted into habitable space.

Costs depend on the size of your basement, condition, and chosen system. Book a free survey for a detailed, no-obligation quote.

Contact Us !

London Property Preservation is one of the leading property maintenance companies in South London and the surrounding areas.

Protect Your Basement Today

Don’t let water damage compromise your property. Basement tanking is a long-term investment that protects your foundations, prevents costly repairs, and gives you the confidence to use your space as intended.

Call 020 8689 0073 or fill out our quick form to book your free damp survey with London Damp Solutions.

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