Premium uPVC Windows, Designed for Modern Living

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Manufacturer & Installer in Essex

Upgrade your property with high-performance uPVC windows that combine style, durability, and energy efficiency. At Exterior Plas, we manufacture and install bespoke window systems tailored to enhance both residential and commercial spaces across Essex, London, and the South East—delivering long-term performance without compromising on design.

Energy Efficient

Low Maintenance

Enhanced Security

Noise Reduction

Weather Resistant

Custom Finishes

Exterior Plas are proud to be associated with the REHAU brand, and fabricating windows and doors. REHAU have long been regarded as one of the industry’s leaders in uPVC extrusion, and were one of the first companies in the UK to produce uPVC window systems.

Explore Our uPVC Window Styles

Casement Windows

Secure, energy-efficient windows that provide excellent ventilation and long-lasting performance.

Sliding Windows

Smooth-gliding windows that maximise natural light while saving valuable interior space.

Fixed Frame Windows

Stylish fixed windows that deliver uninterrupted views and outstanding thermal efficiency.

French Windows

Elegant windows that brighten interiors with wide openings and timeless design.

Your uPVC Windows, Your Specifications

We can supply a wide range of systems for every style of uPVC window. This includes a variety of styles and sizes, from casement windows and tilt and turn to doors and conservatories. To ensure the windows complement your home, we offer a vast choice of finishes and colours. All of our uPVC products are manufactured in our UK-based factory. 

Do you have any special requirements or particular dimensions for your windows? As a trade window manufacturer, we specialise in fabricating the uPVC windows ourselves to ensure you get the best quality and best possible fit with our made-to-measure window systems. 

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Advanced manufacturing capabilities and commitment to quality.

We have been fabricating REHAU windows and doors for nearly three decades. Since it launched in 1988, it has been one of the largest single producers of uPVC window and door systems using the ‘Calibre’ profile, alongside the TOTAL70 suite, and the REHAU ‘Rauferno’ fire-rated products for which we helped spearhead the research and development over two decades ago.

Design

Manufacturing

Quality Check

Installation

Frequently Asked Questioned

Why are uPVC windows the best choice for Essex homes?
Local properties benefit immensely from these durable frames because they withstand the unpredictable British weather without rusting or warping. As a trusted uPVC windows manufacturer in Essex, Exterior Plas provides high-quality products that keep your home quiet and secure throughout the seasons. These windows offer excellent insulation, strong security features and a finish that suits both traditional and modern properties. Our expert uPVC windows installation guarantees a perfect fit for any property type.
Yes, these frames are specifically designed to trap heat inside and keep the cold out, which helps lower your monthly heating bills. Exterior Plas uses advanced glazing technology to ensure your living space remains warm and cosy all year round. As Essex’s leading uPVC windows manufacturer, we prioritise thermal performance. Our professional uPVC windows installation in Essex creates a tight seal against draughts.
In most cases, planning permission is not required when replacing existing windows with uPVC windows, especially if the style and size remain similar. However, there can be exceptions for listed buildings or properties in conservation areas. We are a premier uPVC windows manufacturer in Essex familiar with regional requirements and can offer guidance. Our team ensures that every uPVC windows installation complies with all necessary building regulations.
Absolutely! Homeowners can select from a wide range of colours, finishes and window styles to suit their property and personal taste. Exterior Plas, a reliable uPVC windows manufacturer, offers options that complement both period homes and new builds. From classic white to wood effect finishes, there is plenty of choice. We follow this up with a bespoke uPVC windows installation in Essex that transforms your property.
uPVC windows require very little effort to keep looking brand new. They do not rot, peel or need regular painting. Exterior Plas recommends simple cleaning with warm soapy water to keep frames looking fresh. As a trusted uPVC windows manufacturer in Essex, we design products built to last. With our expert uPVC windows installation in Essex, homeowners can enjoy windows that stay attractive and functional with minimal effort over time.

Ready to upgrade your property?

Take the first step towards transforming your space by scheduling a consultation with Exterior Plas.

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