Our services
London's No.1 Basement Waterproofing and Tanking Specialists
Crown Preservation provides professional basement waterproofing London homeowners and businesses have trusted for over 30 years, along with basement tanking across London and the Home Counties. Whether you are dealing with a damp cellar, converting a basement into a habitable room or protecting a new build from water ingress, our CSSW qualified surveyors design and install waterproofing and tanking systems to BS 8102:2022 standards. As specialists in damp proofing London properties, we understand exactly how these systems work together to protect your property long term.
With over 30 years of experience, a 30 year insurance backed guarantee and a free no obligation survey, we help homeowners, builders and commercial property owners across London keep their basements dry, usable and protected for the long term.
What Is Basement Waterproofing and Tanking?
Basement waterproofing is the general term for any system that stops water and damp affecting a below ground space. Basement tanking is one method of basement waterproofing. It involves applying a waterproof coating, membrane or cementitious slurry directly to the walls and floor of a basement or cellar to create a barrier against water ingress.
Depending on your property and how you plan to use the space, we may recommend basement tanking on its own, a cavity drainage membrane system or a combination of both, in line with British Standard BS 8102:2022. Where cracks or structural movement are present, we may also recommend concrete resin injections before any waterproofing work begins. If the problem is rising damp rather than water below ground, our rising damp treatment service may be a better fit, and if condensation is the cause, take a look at our condensation treatment service instead.
Our Basement Waterproofing and Tanking Services in London
We provide a full range of basement waterproofing and basement tanking services across London, including our dedicated basement tanking services for cellars, vaults and below ground extensions. If you are planning a new basement conversion, our basement excavations team can prepare the space before waterproofing begins:
- Basement tanking using cementitious slurry or waterproof membranes
- Cavity drainage membrane systems
- Combined tanking and cavity drainage systems for full protection
- Structural waterproofing for new build basements
- Sump pump installation and maintenance
- Free radon gas testing with every basement waterproofing survey
