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Exterior Plas manufactures and installs windows and doors for local councils and housing associations, schools and education estates and commercial buildings across London and the South East. Public sector work is our core. We’re a family run company, founded in 1988 by Managing Director Andy Sheen, with upwards of 70 employees. Our head office and factory are in Thornwood, Epping, where you’re welcome to visit the showroom. We also carry out domestic work and deal with the trade.
We work directly with estates and facilities teams, or alongside a main contractor, and each job runs from the first survey and project management through to installation. After handover our reactive maintenance department handles repairs, and we also run cyclical repair programmes.
Glazing is at the heart of our commercial and public sector work. We supply and install uPVC, aluminium and timber windows, secondary glazing, fire doors and fire rated windows. We handle specialist glazing too. Over the years we’ve worked on major London landmarks with tricky glazing requests, including the glass dome at Australia House and the glass roof panels at Covent Garden Market. That experience goes into every job we take on.
Our factory in Thornwood covers around 15,000 sq ft and runs a CNC machine. We've fabricated REHAU products for over 30 years. Ancillary items are stocked and cut in house, which keeps turnaround quick.
It is mandatory for all residential and commercial properties to have double glazed windows, as per the UK Building Regulations 2002. They are essential for maintaining compliance with energy performance rating standards—a minimum of E. Windows and doors are a significant investment for new builds and renovations, and a worthwhile approach is highly sought after. So if you have been Google searching for the best “local double glazing companies near me in Essex,” you need to look beyond the conventional options.
Welcome to Exterior Plas. We are one of the leading local double glazing companies in Essex. We are one of the largest manufacturers of double glazed doors and windows in Essex using the ‘Calibre’ profile. We offer a one-stop solution for design, manufacturing, supply, installation and maintenance. You can also find us among the most reputed double glazing companies in London, with our health-safety trained commercial glazing experts working with some of the most prestigious clients and projects across Essex and London for both heritage and new builds. Explore the world of better looking windows and doors.
Here at Exterior Plas, we are proud to provide the service of planning, creating and supplying our clients with bespoke specialist glazing for a range of projects from period properties to glass domes and architectural installations.
We at Exterior Plas offer an established repairs and maintenance service in and around the South East of England. Our dedicated repairs team at our Head Office are on hand to assist the client throughout the day with any updates or queries…
Established in 2007, our reactive maintenance department is committed, experienced and knowledgeable, which facilitates a quick and efficient repair on any window, door or glazing issue you may have as a business or privately.