
Swedish Composite Windows Built to last a lifetime
Westcoast Windows is a Swedish manufacturer based in Trollhättan, crafting composite windows shaped by the demanding conditions of the Scandinavian west coast. For almost 30 years, we’ve been standing up to the harshest Scandinavian weather.
Our philosophy is to build windows of the highest quality, which continues through to our sales, design and production, all the way to your home.
This influences our choice of materials, our production methods and our customer service, with a single-minded aim to exceed your expectations.
Our composite windows and doors are manufactured with carefully selected, environmentally-friendly materials. All of our products are hand-assembled ensuring consistency in quality throughout the whole production process.
Your windows and doors will be delivered directly to your site in the UK, in the same condition they left the factory in Sweden.

SustainabilityAt Our Heart
Sustainability features in everything we do, from our manufacturing facility through to the windows installed in your home.
From the choice of raw materials to work processes and transportation, our operations are respectful of nature and the land we live on.
Because all our windows are made to measure and produced to order, waste is kept to a minimum. Any surplus timber from production is reused in pallet manufacturing.
We also strive to make our painting and surface treatments as environmentally responsible as possible. We are committed to continuing to manufacture and deliver our products responsibly, creating windows designed to last — and to last for decades.
Read more about the environmental benefits of our windows below…
Tested & Certified For Performance & Security
For more information on each of these features you can download the datasheets on our DOWNLOADS PAGE.
Energy Efficient
With one of the lowest U-values on the market – 0.88 W/m2K as standard – our windows keep heat inside and energy costs down.
Excellent Thermal Performance
High performance low emissivity coatings, argon gas filling and composite insulated super spacers for maximum thermal insulation.
Sustainability you can trust
PEFC-certified production, responsibly sourced materials and energy-efficient design all help reduce environmental impact, minimising waste.
Security assured
PAS 24:2016 and Secured by Design. Enhanced security with the BM TRADA Q-Mark – one of the most rigorous certification processes for construction products.
Acoustic reduction solutions
Specially developed glass types and tested combinations are available which significantly reduce noise pollution entering the building up to 48dB(Rw).
10 Year Guarantee
Westcoast provides a 10 year guarantee on windows, doors and closing mechanisms. Westcoast products are suitable for a typical building life of 50 years. (Subject to T&Cs.)