Bespoke Conservatories

Beauty of the GM Windows range of conservatories is that every one is individually designed to fit your home perfectly. Whichever of our styles you choose – and no matter how big or small – we will be able to install your conservatory to the exact layout and finish you desire, quickly, easily and with a minimum of fuss.

Casement windows from Gm windows are a popular choice because they provide a clear view to the outdoors. Casement windows open and close easily with the turn of a handle.

  • A+ rated windows or triple glazing
  • Custom sizing available
  • Extensive hardware selection
  • Energy efficient

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When you decide which conservatory you want, all you need to do is get in touch with us and we’ll do the rest. First we’ll send round your local GM Windows authorised installer, a fully trained expert in conservatories who will conduct a full survey. They’ll discuss with you all the details about your individual requirements and the size and style of your conservatory. They’ll also make sure your new addition makes the most of its location, provides optimum energy efficiency and is completely compliant with building regulations.

GM windows have many years’ experience in providing a top-quality service. We know that, just as no two homes are alike, all of our customers will have different requirements. The result is that every one of our conservatories is unique, made to order according to its location, size and style.

Hazy Grey
Beck Brown
Dark Green
Cream White
Anthracite Grey
Chartwell Green
Irish Oak
light oak


At GM Windows, we want to offer our customers complete adaptability and versatility. Because each of our PVC-U window installations is tailored to suit its specific location, no two are exactly the same. And to make sure that every window completely fits in with its surroundings, we offer a contemporary colour range to match every style.

GM Windows & Doors Options Colour Range has been selected with modern homeowners in mind. The Cream White is a warm cream colour that complements a range of styles, but is ideally suited to both modern and traditional red brick homes. A new addition to the range is Agate Grey, a subtle blend of beige, green and cream which we know will prove very popular on new and renovated homes, especially barn conversions.


Siena PR
White Grain
Steel Blue
Dark Red
Slate Grey