Hi-Seal manufacture its window frames using PVCu profiles from Selecta’s fully chambered Advance 70 window suite. Advance 70 combines superb German engineering with 30 years of window industry experience in the UK market.
The double glazed, sealed glass units provided with these frames are produced on-site at a dedicated facility in Hailsham, East Sussex. This allows Hi-Seal to directly maintain quality control. Hi-Seal only use external fittings, such as locks and hinges, from respected industry suppliers