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Opus Composite

Opus is a range of luxury windows and doors made from high-end timber internally and aluminium externally. Bringing together two distinct building materials: durable aluminium and rich timber, offers consumers, specifiers and architects the best attributes of each material. The longevity of aluminium and the richness and beauty of hardwood. It really is the perfect harmony for any home.

A new generation of windows

For centuries we’ve been installing timber windows into houses, commercial properties and stately homes, but as a material inspired by nature, it does need an element of ongoing maintenance.

Windows don’t come any more beautiful or indeed functional than Opus. With literally hundreds of RAL colours to choose from on the outside, along with different hardwood finishes to the inside, we can design, manufacture and install a window that’s as individual as you to your home.

As well as our beautiful timber grain to the inside, we can also offer a primed finish suitable for painting. Beyond the beautiful finish inspired by nature, we have also engineered key features to help make your windows more secure, with the latest multi-point locking mechanisms, which are fixed through the internal timber face to the aluminium structure.

Designed for you

For many years we have built an exemplary reputation for designing, manufacturing and installing a wide range of conservatories, Orangeries, roof lanterns and Garden Room extensions to the most of exacting of detail. Each one of these bespoke designs which are fully manufactured in the UK, can have the Opus system.

We have considerable expertise through our dedicated in-house support function, which can provide full CAD drawings including foundation details, along with structural calculations and a full architectural service.

Assorted styles and colours, Built to last

We offer a wide range of door styles including single residential, double (French), patio and also the latest panoramic bi-folding doors that are proving highly desirable in kitchen and house extension projects. Like our windows, we can offer a near limitless range of external colours from period inspired Chartwell Green to the more contemporary gunmetal grey.

All of our doors have been engineered to last a lifetime, while the locking mechanisms are designed to stop the most capable of intruder and we can even offer the latest TS007 3-Star cylinders to the doors, tested by the Master Locksmiths Association. Choose an Opus door and you benefit from unrivalled design, the sheer beauty of hardwood and enhanced security.


All of our products are manufactured to the most exacting of standards and we carefully source timbers that carry an active environmental accreditation and are fully traceable. We specify an ash timber to the inside face of our products, which is available with a natural clear lacquer, or with a light oak of antique oak finish. We can also offer a primed finish suitable for painting. Our doors, windows, conservatories and roof lanterns meet the latest Building Regulations for England and Wales, along with Scotland. As a composite product in the true sense of the word our Opus products carry a thermal break and are highly energy efficient. As you would expect from a premium brand, we only use the very finest handles, hinges and locking mechanisms, to help make your home not just beautiful, but highly secure.

We offer a comprehensive 10 year warranty on all Opus products, yet they have a life expectancy well in excess of 25 years. For our glazed roofing systems we are able to offer the latest solar control glass with true self-cleaning properties and these same glass technologies are also available for our windows and doors, along with special sound reduction or privacy glass options. As a bespoke manufacturer, we tailor the specifications of every single product we manufacture, whether for the homeowner or commercial specifier.

Contact Our Experts

Our expert support team can discuss your specific needs and provide details on products relevant to your installations.

01254 871 800

Marketing Support

We have a dedicated downloads section where you will find all our product brochures available in PDF format.

Should you require a brochure delivery or other marketing materials, please contact our marketing department  by emailing marketing@prefixsystems.co.uk