They carried out basement damp-proofing for us and did a fantastic job. I had a lot of issues with damp and the basement was in very poor condition, but fortunately I found this company.
They did an excellent job — very professional, courteous, and always on time. I also used them for my daughter’s flat in Brighton.
Once again, they did a fantastic job. She also had serious damp problems, which is common for anyone living near the sea, but they managed to resolve everything and delivered a really high-quality finish.
Well done — I highly recommend them.
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
- 10-Year Insurance Backed Guarantee
- Approved Installer: Wykamol, Delta, Biokil
- CSSW Qualified Specialists
- ★★★★★ 5-Star Google Rating
- Designed to BS 8102:2022
- Eco-Friendly Damp Treatment
- Leading Brands: Wykamol, Delta, Newton, Mapei
- Design to Completion: Architects & Structural Engineers
- Family-Run, Croydon Based
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...
THERMAL INSPECTION
ISO-THERM MEMBRANE & BLACK MOULD
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.- Free consultation
- 10-year Insurance Backed Guarantee
- Sump pump servicing & aftercare
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.
- Type C cavity drain membranes
- Designed to BS 8102:2022
- Emergency call-out service
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
Don’t often give reviews, but after several botched attempts to fix the damp problem in our flat by other companies and spending a considerable amount of money, Lucasz finally managed to solve the problem.
There were multiple issues & Lukasz sorted them all out, from a dodgy DPC, damaged render, installing additional ventilation etc.
So big thanks for finally getting rid of all that horrible black mould.
We used Crystal Damp Proofing for comprehensive damp-proofing work on our ground floor property, including DPC injections and waterproof render systems. From the first detailed consultation through to completion, their professionalism and workmanship were outstanding. Although we had cheaper quotes, the quality Crystal delivered was on another level — worth every penny. They were friendly, reliable, and exceptionally thorough. What we thought would be a one-month job became three due to hidden issues, but they handled everything brilliantly. I genuinely cannot recommend Crystal Damp Proofing enough.
If you have a problem with damp or condensation speak to Lukasz and book a free survey. He will arrive check everything, write you a report and suggest actions. There is no rising damp issue in my house. Vents were installed for £1500 and rooms are far dryer. I would not hesitate to recommend them.
I have just had Lukasz and his colleague do a damp treatment in my 2 rooms – it is now done and really happy with the job done. I can already see results, moist wet are now drying and we can book P&I to come back soon to carry out some further works! Thanks again for your great work.
To Whom it may concern, I would like to say a huge thank you to Lukasz and his team who carried out the damp proofing at my house. Their work can only be described as professional, quick and hassle-free. House was cleaned each day, all rubbish was taken away.
I would always recommend Lukasz as their Crystal Injection system finally resolved the problem with rising damp. Need to mention that previous cream injections failed and the previous contractor refused responsibility to return. After 12 days walls are nearly dry as pepper!
Our product`s gold medals
