Solid Timber & GRP Composite Doors.

Behind that rather scientific-sounding name, you'll find the latest technology and design in doors. And when you're indoors you'll enjoy loads of style, strength and security.
Lets get personal now. How your door looks is up to you. Like traditional-style or contemporary? you can choose from numerous styles in various colours. Keep looking - we've got a selection of door furniture and a beautiful range of glass too.
We like to keep out technicians busy. And you safe. So we've tested our doors to the very limit, against extreme weather, extreme attack - and extremely over enthusiastic visitors. And wannabe burglars are going to hate those hi-tech security features.


Police Approved.
If anyone knows about security, its the Police. The Secured by Design upgrade meets their international standard for safer homes. Its not only Police-approved - its recognised by many insurance companies.
Extra Security: Safe as Houses.
Our lock feature a cylinder which is impossible to bump or break. All tested to the latest BS6375 security standards. And recognised as a security asset by insurance companies.


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Environmental Policy

It is policy of Alternative Windows to ensure the management of our operational activities in such a manner as to reduce our environmental impact to an acceptable minimum, taking into consideration issues of practicality and reasonable implementation costs.
This will be achieved by setting clear and realistic on going environmental objectives and monitoring our progress and results against these defined objectives.

Contact Us

Sycamore House, Cross Green Industrial Estate Knowsthorpe Lane, Leeds LS90PJ

Driving Directions & Map

Freephone No: 0800 035 4180

Telephone:  0113 2483773
FAX:  0113 2482123