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Our company – CRN Doors!

CRN Doors is established on over 25 years industry experience. We are UK’s leading designer, manufacturer and installer of innovative frameless glass doors, and we have successfully completed over 3,000 projects in the last 10 years alone.

We cater for both residential and commercial industry projects, whether it’s a single sliding patio door system or a large building project. Our service is fully comprehensive from order through to site survey, installation and manufacturers warranty.

As UK’s first manufacturer of the fully retractable frameless glass doors, our doors are suitable for internal purposes such as dividing rooms, through to the patio door systems. Our product range includes a wide range of products, including: aluminium bifold doors, folding sliding doors, concertina doors and aluminium windows.


Why Choose Us?

We are UK’s first designer and manufacturer of the Frameless Glass Door system. Our frameless glass doors are fully retractable and allow for clear glass views of any garden or patio area. Installed at our head production factory in Luton, Bedfordshire we welcome everyone to see our product show room.
Our latest product to release in the UK is the Slimline Bifolding door system. Similar to traditional aluminium bifold doors it has the core feature of being fully retractable. Our slimline doors are fully retractable but use up to 50% thinner frames on traditional aluminium profiles. Therefore allowing for optimal light and views of your patio or garden.
Our door systems are fully installed in just 4-6 weeks, from site survey through to manufacture and installation. That means there’s no worry about ongoing building projects or missed deadlines. We only use in-house installers, so all our team are fully trained specifically to install and maintain our range of door systems.

Our Products

What Our Clients Say

Thanks to everyone at CRN, we’re so happy with the doors we even recommended you to our friends.
Gina.Wray – West London
Can’t fault this company, extremely professional and helpful throughout the whole process.
Timothy.p Manchester
We had such a nightmare with our current building contractor it’s so refreshing to deal with a trusted and reliable company for once.
Becky Watkins – Hemel Hemstead


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