Cavity Drain Membrane Systems for Basements and Cellars

Damp or wet basements and cellars can cause structural damage, timber decay, and mould growth. TPS Damp Proofing installs cavity drain membrane systems, a reliable solution that keeps below-ground spaces dry while allowing safe, usable rooms. Our system is perfect for protecting basements, cellars, and other below-ground areas in your home or property.

How the Cavity Drain Membrane System Works

The membrane is fitted to walls and floors to create a waterproof barrier. Any water that penetrates the structure is channeled into a drainage system and safely removed, often with the assistance of a sump pump. This system is ideal for both modern and older stone-built homes across Bath, Bristol, Somerset, Wiltshire, and Gloucestershire.

Benefits of a Cavity Drain System

  • Keeps basements, cellars, and below-ground areas dry and usable

  • Protects plaster, timber, and finishes from water damage

  • Minimal disruption during installation

  • Suitable for both historic and contemporary properties

Why Choose TPS Damp Proofing

With decades of experience in basement waterproofing and damp control, we offer expert surveys and a professional installation.. Our team serves Bath, Bristol, Frome, Trowbridge, Warminster, Yeovil, Weston-super-Mare, and surrounding areas in Somerset, Wiltshire, and Gloucestershire.

Request a Survey

If your basement is damp, has signs of water ingress, or you’re planning a conversion, contact TPS Damp Proofing today. We’ll assess your property and recommend the best solution to keep your basement dry for years to come.

Interior of a large, modern building with arched ceilings and walls, featuring exposed structural elements and white paneling.
Empty room with two windows, door, and unfinished walls with old wallpaper, floor with some material, possibly board or drywall leaning against wall.
A small room with plywood walls, some sections covered with black tape, a window with a windowsill, and a ceiling with a light fixture.