A family-owned establishment, FENSA registered and HUP! Approved installer, supplying modular extensions, warm roofs, windows and doors across Kent & Essex. The same people, from first survey to final sign-off - Rex Glass and Glazing is a family-owned business, with our team providing over 25 years of combined experience to every project we take on, from a single replacement window to a full modular extension. We invest the effort to get the survey right, so the quote does not change once work starts, and we send the same installer back to address and resolve issues rather than passing you between different teams.