Our patented, frameless, high performance double glazed units fit directly into stone which along with our stainless steel opening casements offer a glazing solution for both heritage properties as well as new developments No modification to the existing fabric of the building is required as the Insulead® glazing fits where the original was located, and is made by our skilled craftsmen using only traditional materials. Our Steelyte® opening casements incorporate a PVC edging in order to protect the stonework. Made of stainless steel throughout they have been designed to have the delicate look and have the benefits of a traditional metal window whilst offering the absolute best of insulating properties. Along with our BFRC accreditation Touchstone's Insulead®/Steelyte® glazing system complies with the new regulations for CE mark. Our Steelyte® and Insulead® glazing systems have received a BFRC 'A' Rating for thermal efficiency and as an ISO9001 accredited company we meet the highest of manufacturing standards.