- Commercial Windows & Doors. Built to Perform.
Built to Perform
Designed to Last.
Over 30 Years Experience.
Exterior Plas specialises in manufacturing and installing affordable, high quality, energy efficient, secure windows and doors for Commercial, Educational and Residential properties across London and the South East. Established for over 30 years, Exterior Plas is a family run company with upwards of 70 employees.
Historically our expertise has been with local councils, housing associations and the educational sector, however we also carry out domestic works and deal with the trade market.
What We Do
We have many years of experience working closely with our clients and providers to deliver an excellent service using the best quality materials to create tailored products designed and fitted specifically to your needs.
Core Commercial Sectors
We support a wide range of commercial sectors with tailored window and door solutions, from public sector and education projects to housing developments, offices, retail and specialist buildings. By combining in-house manufacturing with experienced installation teams, we deliver consistent quality, efficiency and reliability across every project.
Public Sector
Retail & Hospitality
Commercial & Offices
Education
Housing Associations
Heritage
Our Projects
Covent Garden Glass Roof
A bespoke glass roofing solution designed to maximise natural light while enhancing durability and weather protection. Completed with precision to complement the building’s modern architectural style.
Commercial Façade Refurbishment
We restored the building’s external façade using high-quality materials and expert craftsmanship, improving both its appearance and long-term structural performance.
Aluminium Cladding Installation
A complete aluminium cladding system installed to deliver a sleek, contemporary finish while increasing energy efficiency and protecting the building from the elements.
Heritage Roofing Restoration
Specialist roofing works carried out on a heritage property, preserving its original character while incorporating modern waterproofing and long-lasting materials.
High-Level Maintenance Works
Using advanced access equipment, our team completed essential repairs and maintenance safely and efficiently, ensuring minimal disruption to building occupants.
Windows & Glazing
Windows and glazing are at the very heart of our business. We are proud to not only be at the forefront of window systems but to also be able to offer a wide range of specialist glazing options.
Over the years we have facilitated many major London landmarks with some very tricky glazing requests such at the glass dome at Australia House and the glass roof panels at Covent Garden Market. We take pride in being able to complete the most challenging of jobs with the highest standards.
Bi-Fold Door Experts
Bi-fold doors are the perfect way to bring the outside in. Whether you have a new build, are replacing or remodelling we are on hand to offer guidance to make the best of your home.
We supply a wide range of bi-fold options including aluminium, uPVC and timber in a wide range of colours and finishes. Head over to our residential gallery to see some of our competed bi-fold projects.
Why Exterior Plas
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.
Double Glazing Company Near You
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.
