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 and Corby branches. If you still need some assistance, please call into your local 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