Rationel UK manufacture high performance timber windows and doors. There is also a composite range of aluminium clad timber windows and doors which provide contemporary and low maintenance attributes. Windows and Doors are "secured by design" and can be specified into all residential, commercial and public projects.

Howarth Timber Group is renowned for its expertise across the industry. The group operates three divisions, Howarth Timber and Building Supplies. Howarth high performance windows, doors and conservatories. Howarth Timber Engineering for timber roof trusses.

PDS is a leading supplier of Secured by Design, PAS 23 & PAS 24 high performance and FD30 & FD60 fire doorsets, windows and screens to housing developer and the Social Housing sectors. We make bespoke timber doors and doorsets in timber, veneer and composites. Our range of windows are available in many styles including traditional sliding sash.

If you supply WINDOWS: COMPOSITE Aluminium Clad Timber Purpose Made then contact us today! There has never been a better time to promote your company and products with BPi. Get in touch NOW and your company will be available to our millions of users. Send us your details or simply call us.

Crittall Composite Windows is a specialist division of Crittall Windows which specialises in the supply of Composite windows for both residential and commercial construction & renovation. Composite windows are aluminium clad timber windows which provide both sustainability and durability to window specification. Crittall can provide full technical assistance and CAD drawings to facilitate the specification of these high performance composite windows.

Formes Alutek provides a range of services to the construction industry by manufacturing and installing thermally efficient Aluminium, composite Aluminium/Timber curtain walling, windows and glazed doors. We are specialists in curved aluminium windows and curtain walling. We also manufacture ranges of aluminium folding and sliding doors, louvres, fire rated doors and windows to the New Build and Refurbishment sectors of the market.

WESTPHALIA WINDOWS are suppliers and installers of secondary glazed windows, aluminium windows, UPVC windows and GRP Composite Doors. Westphalia provide these products for both commercial and domestic properties and are leading fabricators and installers of Rehau glazing systems.

Paragon Joinery produce purpose made timber doors, windows, roof lanterns & Staircases. PARAGON sources its own timber from its associate company ETP Ltd. (ENGINEERED TIMBER PROFILES LTD) who also supply other window manufacturers with laminated timber sections or profiles, impregnated and factory finished if required.