Trench blocks are for below ground use for wall foundation, they are cost effective, easy to handle and offer excellent thermal properties. Trench Blocks are available for delivery or can be collected in store in our Peterborough & Huntingdon branches. Corby Area Delivery option is available. If you still need assistance, please visit or call your nearest branch for advice.
Thermalite Trenchblock Tongue and Groove is an alternative to the construction of cavity walls with concrete infill, engineering bricks or heavy aggregate blocks for foundations
Thermalite Trench block Tongue and Groove is an alternative to the construction of cavity walls with concrete infill, engineering bricks or heavy aggregate blocks for foundations