Subframes Uk solely manufacture and supply cavity closures to suit all makes and types of windows, doors and window/door combinations using a wide variety of Profiles (Cavalok, Dacatie, Spectus & HW) all of which are manufactured to the highest standard in our new Tibshelf factory, and delivered nationally.

We have 22years of experience in the upvc industry and direct involvement in cavity closures for the past six years. Our company has pioneered the manufacture of various
cavity closures and also prototyped and designed several new ones.

Subframes Uk pride ourselves on our fast response to all enquiries, simply send us your sizes or drawings, and we will fax back the details with a price that cannot be beaten. Delivery dates are five working days from receipt of order. Quotes returned within two working days.

All our frames are braced using timber from a sustainable source. Whichever product is manufactured our set standards are applied i.e. spacing of bracing amount of bracing, corner stays, customer information and identification. All deliveries are made using unmarked transport and PODs supplied by return.