Our Products

A house with a wall of windows.

VELFAC windows are high-performance composite windows known for their unique combination of a durable external aluminium frame and a warm internal timber frame. Their modern, minimalist Scandinavian design includes slim uniform sightlines that maximize natural light. VELFAC are…

The outside of a house.

Rationel aluminium-clad windows and doors combine solid timber interiors with a sleek, weatherproof aluminium exterior — delivering outstanding energy efficiency, low maintenance, and a modern architectural finish

Rationel timber windows on the side of a house.

Rationel timber windows and doors are made from sustainably sourced Scandinavian wood, offering excellent insulation, timeless aesthetics, and a breathable, comfortable indoor climate. Ideal for traditional and contemporary homes that value natural materials and lasting quality.

A woman opening her Bi-folding door.

Solarlux bi-folding doors are German-engineered for effortless operation, ultra-slim sightlines, and seamless indoor-outdoor living. With thermally broken aluminium or timber-aluminium frames, they deliver exceptional energy efficiency, weather resistance, and panoramic views.

The outside view of a modern home with Solarlux Sliding doors.

Solarlux sliding doors offer precision-engineered performance with ultra-slim profiles, smooth glide operation, and floor-to-ceiling glass. Designed for thermal efficiency and weather protection, they deliver seamless transitions and uninterrupted panoramas.

A glazed conservatory.

Solarlux wintergardens and glazed extensions transform homes with fully bespoke, thermally insulated glass structures — combining slimline aluminium or timber-aluminium frames with advanced glazing for all-season living.

Spitfire entrance doors combine robust aluminium construction with advanced glazing options and secure locking systems, delivering exceptional energy efficiency, weather resistance, and customizable style. Engineered to protect and enhance your home with lasting quality.

What Our Clients Say

See All Testimonials

Miss A Knight

Two engineers, Fraser and Thomas, came out to my property to deal with a tricky VELFAC door issue after recent construction work on my roof. They worked tirelessly all morning to solve the issues. Now my doors work perfectly. Great professional service. Thank you guys!

Mr J French

Our visit to Composite Windows was made most enjoyable and productive through the courtesy and professionalism of James Harman. He made us very comfortable and at ease and was able to answer all our questions and concerns to our satisfaction. James is a credit to Composite Windows. Thank you. 

Mr J Jacobs, Southsea

I contacted Composite Windows to explore getting a front door. I didn’t buy a door from this company in the end as they could supply one which met my requirements within the budget available. Despite this, my experience dealing with James Harman, the sales executive was always very positive. He was very professional, patient and diligent in trying to provide a door that met my requirements & as close to my budget as possible. He was also very good-humoured and well-meaning in his communications with me. Unfortunately, he could not supply and fit a door for me, but based on this experience I would recommend this company.

We use cookies to improve your experience on our website. By browsing this website, you agree to our use of Cookies.

Close