Malmesbury UPVC Replacement Windows

Transforming your property with new replacement windows is a serious investment, and the success of your project will depend on both the quality of the product and who installs it. Here at Malmesbury Windows we use the highest quality products from well known trusted brands including Deceunick. And as authorised installers along with our experience and expertise, you know you are in safe hands.

Choose a Colour to suit you! – Over 30 different colourways in stock!

Malmesbury Types of Replacement Windows

Malmesbury Windows can provide you with a complete range of window sizes, shapes, finishes and glass designs to help transform and personalise your home. Styles include: Astragal Bar Fitted windows, Shaped windows, Casement windows, Tilt and Turn windows and Sliding Sash windows, plus a number of glass options which create a focal point for your windows. Our glass options include; bevelled, leaded, coloured, stained or Georgian bar options, so you can select the style that suits you and your property.


Malmesbury Windows supply and fit the following ranges of Deceuninck UPVC Windows

  • 2500 Chamfered System
  • 2800 Sculptured Series
  • Heritage Flush Casement

This quality Belgian brand was established in 1937 and is one of the world’s leading producers of PVC-based window and door systems, profiles, sliding doors and windows, shutters, screens and other home protection fittings, flooring, and interior and exterior cladding.


Deceuninck’s colour collection has been specially designed to help you put together the perfect colour palette for your home. Every home is different and our beautiful range of colours takes its inspiration direct from nature to harmonise perfectly with your home and its surroundings, and stay looking good for years.

Our wide range of foil finishes will complement any home. Nine woodgrain finishes available from stock – foil on both inside and out or as foil on white.

Malmesbury Replacement Window Safety and Security

Malmesbury Windows understand the importance of safety and security of your home. All of Malmesbury Windows UPVC windows offer maximum security, with the highest specification locking mechanisms, and as a FENSA registered company you can rest assured that all installations will be in accordance with the latest building and fire regulations.