Why Choose Us for Basement Waterproofing?
Your Basement’s Best Defence Starts with Us
We’re more than just waterproofing experts — we’re your partners in protecting what matters most. Whether you're dealing with a damp basement, mould issues, or recurring water leaks, our team delivers lasting solutions backed by experience and integrity.
✅ Proven Experience
With years of experience in the industry, we’ve helped thousands of homeowners reclaim dry, healthy basements. Our technicians are trained, certified, and equipped with cutting-edge tools and techniques.
✅ Lifetime Warranties
We stand behind our work with industry-leading warranties, providing you with confidence that your basement will remain dry for years to come.
✅ Custom Solutions
No two basements are the same. We design custom waterproofing plans tailored to your home’s unique foundation, soil conditions, and drainage challenges.
✅ Fast, Clean, and Professional
We respect your time and your space. Our crews work efficiently, leave no mess behind, and treat every home like it’s their own.
✅ Locally Owned & Trusted
As a local company, we understand the specific challenges that basements face in London. We're proud to serve our neighbours with honest pricing and reliable results.
✅ 24/7 Emergency Support
Water problems don’t wait — and neither do we. Our team is available around the clock to address urgent issues and protect your home from further damage.
Compliant, Certified & Guaranteed
We adhere to BS 8102:2022 standards for below-ground waterproofing and collaborate with CSSW-qualified technicians. Our team uses only proven, BBA-approved materials to give you total peace of mind.
Our Waterproofing Solutions Include:
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Tanking Systems – Cementitious coatings applied to walls and floors to block water ingress.
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Cavity Drain Membrane (CDM) – A modern waterproofing solution that collects and redirects water to a drainage system or sump pump.
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Injection Resin Waterproofing – High-pressure injection to seal leaks and fill cracks in concrete or masonry.
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Sump Pump Installations & Repairs – Professional sump system design, installation, servicing and emergency repairs.
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External Waterproofing – For new builds or where access is available, we apply external membranes and land drainage.
Sump Pump Installation
is essential for preventing basement flooding. Our team will install a reliable sump pump system that efficiently pumps out excess water, keeping your basement dry and safe.
Sump Pump Installation is crucial for preventing basement floods, and our reliable systems ensure efficient water removal when needed.
- Prevent basement flooding
- Efficient water pumping
- Reliable system installation
Frequently Asked Questions
Do I need waterproofing if my basement isn’t leaking?
Yes. Even without visible leaks, moisture can damage your walls, create mould, and reduce property value. Prevention is cheaper than repairs.
Can you waterproof an existing basement?
Absolutely. We specialise in retrofitting waterproofing systems in older buildings.
What’s the best waterproofing system for my home?
Every basement is different. We provide a free assessment and recommend the best system for your structure, usage, and soil conditions.
On going Sump Pump Servicing
Regular servicing of your sump pump is crucial for its proper functioning. Our Ongoing Sump Pump Servicing includes maintenance checks, repairs, and replacements if needed, ensuring your system is always ready when you need it.
Ongoing Sump Pump Servicing keeps your sump pump in top condition, ready to handle any excess water and protect your basement.
- Regular maintenance checks
- Repairs and replacements
- System readiness
“I was impressed by the professionalism and quality of work provided by Delta Force Basements. Their waterproofing service has given me peace of mind about my basement's protection.”
John Harris