Basement & podium deck waterproofing

Transform your damp below-ground spaces into functional rooms that enhance your property's value. Our proficient technicians expertly install the three main waterproofing styles, including basement tanking, integral and membrane/pumped solutions, tailored to your needs.

Lift pits

Treat your lift pits as mini-basements with Crownstone's innovative solutions. According to new revisions to BS8102:2022, lift pits require specific attention to prevent water penetration. Depending on your lift pit requirements, Crownstone offers solutions ranging from patch repairs to full system renewals.

  • Injections: Suitable for lower-risk environments, our injection system drills through the structure, injecting a resin to form a waterproof gel. This approach plugs capillaries, ensuring water resistance.

  • PITSAFE®: A ground-breaking lift-pit waterproofing system that eliminates the risk of water mixing with hydraulic oils. Ideal for high-risk environments, it can be installed during the build phase or retrofitted. Features include: drained protection, false floor to prevent oil and water mixing, double-sealed drain lid and waterproofing of lift pit walls.

With PITSAFE®, we can protect the mechanical and electrical workings of your lift system, reduce insurance claims, and ensure constant functionality.

Drainguard & drainage solutions

An effective drainage system requires consideration of soil composition, discharge channels, points and integration with local infrastructure. Crownstone's bespoke designs factor in these elements, adapting to weather patterns and environmental factors.

Our unique product, Drainguard by Crownstone, uses non-return valves to prevent sewage backtracking towards the property, features a pumped overflow system to manage pressure during periods of inundation, and enables the system to pump against pressure so it can handle household usage during storm events.

CASE STUDIES