Kaliber is a privately owned group of niche manufacturing companies, supplying the trade with aspirational glazing products.


Three of our group companies have been profitably trading for over 20 years and following the formation of Spitfire Doors Limited, we decided to form a mutually supporting group.

Our Group aim is to provide the UK window and door trade with exciting, aspirational glazing systems that are exclusively available from our manufacturing companies.

Our focus is on supplying niche products, made completely bespoke to a very high quality and specification.


...contact us today!

If you wish to find your KAT design partner, have any questions or would like to discuss our premium range of products then please contact us.