YOUR BASEMENT, DRY FOR GOOD

Basement waterproofing & damp proofing specialists in Croydon & London

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    Professional Damp Proofing Services

    Crystal Damp Proofing
    & Basements Ltd

    At Crystal Damp Proofing & Basements, we’re expert damp proofing specialists based in Croydon. We also specialise in Basement Waterproofing, Condensation Control alongside other damp treatment and repairs.

    20+ YearsCombined Experience

    Now serving West London, Central London, Greater London, South and South East London

    Basement Waterproofing Technology

    Groundwater and heavy rain can turn a basement into a damp, mouldy space. Our cavity drain membrane and tanking systems keep it dry for good...

    Basement Conversion & Waterproofing

    Turn an unused basement into a dry, warm living space: a home office, gym or extra bedroom. We handle everything from plans to the finished room...

    Spray-Applied Basement Waterproofing

    Machine-sprayed tanking and bituminous coatings create a seamless waterproof barrier, ideal for basements and external retaining walls...

    Insurance-Backed Guarantee & Product Warranty

    Every installation is covered by a 10-year Insurance Backed Guarantee through QANW, transferable if you sell, plus 10-year manufacturer warranties...

    FEATURED SERVICE · 01

    THERMAL INSPECTION

    Detect damp, cold spots and hidden water ingress before they cause costly structural damage, using high-resolution thermal camera technology.

    FEATURED SERVICE · 02

    ISO-THERM MEMBRANE & BLACK MOULD

    An ultra-thin thermal insulation system for cold internal walls — tackling condensation and surface mould without losing valuable floor space.

    OUR PROMISE

    A flexible team that works around you

    When you choose Crystal Damp Proofing & Basements, you get a permanent solution, not a quick fix. From your free consultation to the final handover, we look after you at every step: we find the real cause of the problem, explain your options clearly and recommend the system that suits your property and budget.

    Whether it's basement waterproofing, a full basement conversion, spray-applied tanking or damp treatment, our qualified team works cleanly, on time and with respect for your home. We plan the work around your schedule, so disruption to your daily life is kept to a minimum. Every installation is backed by a 10-year Insurance Backed Guarantee, and we stay in touch long after the job is done, with regular sump pump servicing and aftercare whenever you need us.
    OUR TECHNOLOGY

    Basement Waterproofing Technology

    We use proven cavity drain membrane systems (Type C), designed to BS 8102:2022, to keep basements permanently dry. Studded membranes on the walls and floor control any water that gets in and channel it to a drainage system and sump pump, creating a safe, dry base for your new living space.

    Every project is planned in detail and carried out by our own qualified, experienced specialists, quickly and to the highest standard. We treat each job as a new challenge and every client with real care, which is why so much of our work comes from recommendations. And if anything unexpected ever happens, our emergency call-out service is there for you.

    OUR SERVICES

    We Offer Professional Damp Proofing Services.

    We offer comprehensive range of services to home owners and property professionals or can work with your builder to undertake the specialist damp proofing as part of your overall refurbishment.

    GET IN TOUCH

    Request a Call Back

    Tell us about your damp or basement problem and one of our qualified surveyors will call you back to talk through your options.

      ACCREDITATIONS & PARTNERS

      Our Trusted Accreditations & Partnerships

      Approved installers working with the industry’s leading waterproofing manufacturers.

      CLIENT REVIEWS

      What our clients say

      AWARD-WINNING PRODUCTS

      Our products' gold medals

      The waterproofing systems we install have won gold medals at international trade fairs across Europe, Asia and the USA.

      Gold medal – Brussels
      Brussels
      Belgium
      Gold
      Gold medal – Brussels
      Brussels
      Belgium
      Gold
      Gold medal – Casablanca
      Casablanca
      Morocco
      Gold
      Gold medal – Casablanca
      Casablanca
      Morocco
      Gold
      Gold medal – Geneva
      Geneva
      Switzerland
      Gold
      Gold medal – Moscow
      Moscow
      Russia
      Gold
      Gold medal – Nuremberg
      Nuremberg
      Germany
      Gold
      Gold medal – Beijing
      Beijing
      China
      Gold
      Gold medal – Pittsburgh
      Pittsburgh
      USA
      Gold
      Gold medal – Russian Academy
      Russian Academy
      Russia
      Gold
      10International gold medals
      8Cities & trade fairs
      3Continents
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