We take great pride in providing high quality UPVC products. 

UPVC Windows

Transform Dorset Ltd are a leading supplier of new double glazed UPVC windows with 60+ years experience. If you are considering replacing your current windows to the latest UPVC double-glazed windows, choose a local company that takes pride in its work and backs it with a full 10-year Insurance backed warranty.

Safe and Secure
UPVC windows offer unprecedented security to the homeowner, with multi-point locking mechanisms it is very difficult to gain entry when the window is locked. You can also choose to fit additional security bolts and hinges if required to further keep you and your family safe. Our UPVC REHAU window frames are flame retardant in case of fire, which will allow extra time to evacuate in an emergency situation. REHAU TOTAL70 windows can achieve the British Standard BS7950 and PAS 23/24 security standards. The multi-internal chambers allow further installation of larger steel reinforcements, if required.


Energy efficient
UPVC windows supplied and fitted by Transform Dorset Ltd, will save you money on energy costs, by reducing the amount you spend on heating your home. In winter, UPVC windows reduce the amount of heat lost through the window cavity and keep more of it within each room. In summer any cool air that is produced by a cooling system, will be kept in by the thermal properties of the glass technology within our glazing units. For excellent thermal properties and to achieve greater energy savings, the REHAU TOTAL70 window system easily achieves an A rating, the highest possible Window Energy Rating (WER) for thermal efficiency.


Peace and Quiet
Our windows offer a sound transmission class rating of 44 dB, meaning they keep all the noise of the town and roads outside, allowing you a quiet, peaceful place to relax and un-wind.


Low maintenance
The UPVC windows system contain a unique compound with a smooth gloss finish – guaranteeing they retain their pristine appearance. It also means they will never warp, rot or need painting.

upvc Windows
double glazing

Sash Windows

Transform Dorset Ltd are happy to offer advice and inspiration on the type of replacement windows available. There are many different styles available and they can seem overwhelming, however we are happy to offer a helping hand when necessary.


Designs and styles
It is important to consider functionality when choosing your replacement windows, as it is easy to be drawn in by pretty looking styles. The way the window functions and opens is equally important and must also fit your lifestyle, we offer sash windows that are multi-functional, so they open upwards, downwards, to the side and also gradually inwards. This allows you many more ways to ventilate your home, as well as improving the practicality.

sliding sash Windows

Victorian Sliders

Transform Dorset Ltd offer a selection of Victorian Sliders with leading edge design on upper and lower panes, allowing a smooth gliding operation.

Aesthetic appeal
Designs may be further enhanced with a range of decorative fixings. The triple brush seals create exceptional levels of draught proofing and an anti-jemmy bar will help to reduce break-ins. Combine these benefits with 24mm low “E” glazing for class leading thermal efficiency, it is easy to see why these windows are now so popular.

Victorian Sliders