HOME Since Geothermal Supplies Limited was formed it has been and remains our priority to offer the best quality products and materials and most complete service to our customers. This means supplying proven, industry accepted equipment and consumables. Geothermal Supplies Limited is the sole European distributor for GeoLoop grout pumps and reeling equipment and GeoPro Thermally Enhanced Wyoming bentonite. Together with the highest quality PE100 polyethylene pipe for manufacture of our Thermo-Loop® ground heat exchangers, this provides us with the correct tools to enable both the geothermal drilling contractor and the design engineer to construct the best possible geothermal borehole optimizing the natural energy available in the formation.