Swedish composite windows – made in Sweden
composite windows made in sweden

Swedish Composite Windows Withunique Bonded Aluminium & Timber Construction

Since 1995 our bespoke composite windows and doors have been manufactured with the same skill and attention to detail, designed to our customers’ exacting specifications and built to withstand the harshest of Scandinavian climates.

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 in Trollhättan, Sweden, with carefully selected, environmentally-friendly materials to our unique and innovative design. 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.

Sustainable Swedish composite windows

SustainabilityAt Our Heart

Sustainability features in everything we do, from our manufacturing facility through to the windows installed in your home.

At our factory in Trollhättan, Sweden, residents and commercial businesses benefit from years of investment into sustainable energy technology – the local heating system recovers excess energy from industrial activities which is recycled, and complemented with local biomass production to heat the whole city.

Westcoast Windows’ waste timber contributes to this renewable energy source, and power generation is principally from Trollhättan’s own hydro-electricity plant, supplemented by local wind farm and solar energy sources with occasional nuclear support at times of exceptional demand.

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.


Manufactured to exceed all contemporary standards. Double-glazed entry level whole window U-value of 1.4W/m2K. Triple-glazed windows and doors achieve U-values of less than 0.8 W/m2K.


Double and triple-glazed sealed units are supplied with the latest high performance low emissivity coatings, argon gas filling and composite insulated super spacers for maximum thermal insulation performance.


Timber is PEFC certified, sourced from sustainably managed forests. Only water-based paints and stains are applied to the finished timber surfaces. Fully recyclable due to the aluminium and timber construction.


All principle products comply with 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, recognised by controlling authorities and home warranty providers.


Protect areas of high noise pollution – tested glass combinations to improve noise reduction by up to 48 dB Rw. Achieved by either increasing the thickness of the glass, using acoustic laminated panes or adjusting the size of the cavities between glass panes.


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 terms & conditions.

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