Explore the Marmox range at PGR, built to solve one of construction's most persistent problems: cold bridging at the wall-floor junction. Our Thermoblock insulation blocks provide a load-bearing, thermally efficient solution that helps new builds and extensions meet Building Regulations energy targets, without compromising structural strength.

Available in a choice of widths to suit different wall constructions, Thermoblock is fitted using Marmox MSP 360 Sealant & Adhesive, a flexible, high-strength adhesive designed to bond and seal the blocks securely in place. Ideal for foundations, floor slabs and door thresholds, Marmox Thermoblock keeps heat in and cold bridging out on any energy-conscious build.