Chepstow’s housing stock is unusually mixed: Georgian and Victorian stone in the town centre and Conservation Area, post-war brick out toward Bulwark and Tutshill, and modern timber-frame estates in Sedbury, Crick, and the Caldicot fringe. Each demands a different replacement glazing approach — slim double-glazed units (10–14 mm cavity) for heritage frames where the original sightlines must be preserved, standard 28 mm units with argon for modern uPVC and aluminium, and triple-glazed specifications for new-builds chasing Welsh Government Approved Document L (the Welsh equivalent of Building Regs Part L).
We have been supplying replacement sealed units across the Bristol catchment for 15+ years and Chepstow has always been part of that catchment — the M48 makes it a 25-minute survey drive. Every unit is manufactured to BS EN 1279, comes with a 12-month workmanship guarantee, and is installed by FENSA-registered glaziers. Our diagnostic-first approach means we will tell you when a repair beats a replacement (failed handles, blown hinges, drainage clears) and only quote a new unit when the existing one’s seal is genuinely past saving.
For Conservation Area work in the Wye Valley AONB, we supply slim double-glazed units that fit original timber sashes and casements without disturbing the sightline. For new-build retrofits chasing Passive House U-values, we supply triple-glazed units with argon or krypton fill (see the comparison).