Specialists in triple glazed timber & timber/aluminium composite windows.


Our extensive experience with triple glazed timber and aluminium clad timber windows and doors is second to none having dealt with triple glazed products for almost 10 years. We are able to offer triple glazed solutions to suit all requirements whether it’s a domestic house replacement or a multi million pound development.

We are proud to be one of the UK’s leading suppliers of triple glazed, high performance, environmentally responsible window systems.

Welcome to


t: (01904) 479531 e:info@swindows.co.uk

Sustainable Windows LLP

York Eco Business Centre

Amy Johnson Way

Clifton Moor


YO30 4AG


t: (01904) 479531


e: info@swindows.co.uk

We exclusively supply windows and doors from Swedish company SP Fönster. SP Fönster’s success as a manufacturer of high performance, environmentally responsible window SPFonsterlogojpgsystems, is built upon genuine knowledge and a wide range of products with high standards set for design, performance and service.

Our experience has led us to exclusively supply visually appealing, highly insulative products which also achieve the utmost levels of environmentally friendly manufacture. The perfect blend of high performance, beauty and responsibility.

We provide a complete service to you from initial conception through to final handover and have our own professionally trained craftsmen who provide a nationwide installation service.

We have a long list of returning customers who appreciate our product, our expertise and our exceptional customer service.

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