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Business Details
31 Years
experience
Premium Composite Windows & Doors by Westcoast
Established in 1995, Westcoast Windows has been delivering high-performance composite windows and doors designed to endure the harshest Scandinavian climates. Our Swedish-manufactured products combine aluminium profiles with sustainably sourced, knot-free laminated timber, ensuring exceptional durability and energy efficiency. With over 25 years of expertise, we specialise in bespoke double and triple-glazed solutions tailored to residential and commercial projects across the UK.

Our commitment to quality is reflected in our rigorous manufacturing standards, including U-values as low as 0.9 W/mK for opening windows, and our partnerships with regional authorised distributors who provide end-to-end support from design to installation. We prioritise functional elegance, environmental responsibility, and long-term performance, ensuring our products meet the exacting specifications of architects, contractors, and homeowners alike.
Services
Composite Windows Composite Sliding Doors Terrace & Patio Doors Triple-Glazed Solutions Custom Aluminium-Timber Designs Commercial Window Systems Residential Door Installations Energy-Efficient Glazing Bespoke Window Manufacturing Sustainable Building Materials
Details
  • Year established: 1995
Highlights and features
  • We offer 25+ years of expertise in Swedish-manufactured composite window systems.
  • Our products achieve U-values as low as 0.9 W/mK for superior energy efficiency.
  • We use sustainably sourced, knot-free laminated timber in all our window constructions.
  • Our regional distributors provide tailored design and installation support nationwide.
  • We guarantee exceptional durability with materials engineered for extreme climates.
What people say
Exceptional durability Energy-efficient performance Sleek Scandinavian design Customisable options Robust security features
Services
Composite Windows
Our composite windows combine aluminium profiles with sustainably sourced laminated timber for exceptional durability and thermal performance. Engineered to withstand extreme weather conditions, these windows achieve U-values as low as 0.9 W/mK. Available in double or triple-glazed configurations, they offer customisable opening styles, finishes, and security features while maintaining a sleek aesthetic.
Composite Sliding Doors
These high-performance sliding doors feature bonded aluminium and timber construction for seamless indoor-outdoor transitions. With options for widths up to 6 metres and advanced locking systems, they provide maximum natural light, security, and ease of operation. Ideal for modern homes requiring energy-efficient access to outdoor spaces.
Terrace & Patio Doors
Designed for durability and aesthetic appeal, these doors combine aluminium exteriors with timber interiors. Available in single or double configurations with double or triple glazing, they offer excellent thermal insulation (U-values down to 1.0 W/mK) and robust security features for residential and commercial properties.
Triple-Glazed Solutions
Our triple-glazed systems enhance thermal efficiency and noise reduction through advanced insulated glass units. Ideal for cold climates or noise-sensitive areas, these solutions maintain slim profiles while achieving superior U-values, contributing to lower energy bills and improved indoor comfort without compromising design flexibility.
Bespoke Window Manufacturing
We create made-to-order windows tailored to specific architectural requirements. From unique opening mechanisms like top-hung reversible designs to custom dimensions and finishes, our manufacturing process ensures precise adaptation to both modern and heritage buildings while maintaining structural integrity and performance standards.
Questions
What materials are used in Westcoast composite windows?
We use sustainably sourced laminated timber bonded with aluminium profiles for durability and thermal efficiency.
Do you offer triple-glazed options?
Yes, our Design series provides triple-glazed solutions with U-values as low as 0.9 W/m²K.
Are products available nationwide in the UK?
We work with regional authorised distributors to supply and install products across the UK.
What security features do your windows include?
Our windows feature concealed multipoint locking systems and safety restrictors for enhanced security.
Can I get custom-sized windows?
Yes, we manufacture made-to-order windows tailored to specific architectural requirements.
What is the typical lead time for orders?
Lead times vary by product but generally range between 6-12 weeks from order confirmation.
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Reviews (4)
Doug Xcd
Dec 28, 2021 Report
I ordered a large number of doors and windows that were custom designed by a third party
The process and product were excellent
James Bailey was particularly helpful : thank you
I recommend them unreservedly
Mark Clutterbrook
Dec 17, 2021 Report
Had 10 windows and a door fitted today. The 2 fitters were extremely good at what they do. Very approachable,friendly and polite. And the quality of the windows are great. Super super impressed.
Anna Organ
Sep 01, 2021 Report
Appalling customer service, rude staff and expensive- DO NOT USE THIS COMPANY! Westcoast Window Systems Ltd did not respond to my email request for a review of fault with our window for over 2 months, eventually they responded after I rang them to chase. The request I made was for a repair under warranty, they did not explain that the service would be chargeable nor the call out costs until after they had attended the property at which point the invoice was emailed over. The person who attended left a huge mess and my partner had to sand down and repaint the windows where the work had been carried
Polly Gibb
Jul 06, 2021 Report
We ordered windows for our new build using a recmmended distributor listed on Westcoast web-site and paid a 22000 deposit (50% of the quote) as requested. It looks as if the recommended distributor has now gone into liquidation taking our money with them. Westcoast have washed their hands of any responsibility. Think twice about ordering from them. 21st June 2021