Windows
Aluminium windows
Slim, strong and precise. Thermally broken aluminium frames that carry more glass and less frame, in any colour you can name.
Windows
More glass, less frame
Aluminium is far stiffer than uPVC, so a frame can be much narrower and still carry a large pane of glass. The result is a window that is mostly view, with sharp square edges and a finish that looks as good on a modern extension as it does replacing steel windows in a 1930s house.
We supply and install the Sheerline aluminium system, designed and extruded in Britain. A thermal break inside every section separates the cold outer face from the warm inner one, which is what makes today's aluminium windows a world away from the cold, damp frames of the past.
Slim sightlines
Narrow frames and larger panes for a lighter, more open elevation.
Thermally broken
An insulating barrier inside the frame, with glass U-values from 0.9 W/m²K.
Any RAL colour
Durable powder-coated finishes, with the option of a different colour on each face.
Built to last
Aluminium does not warp, rust or rot, and the finish is baked on for life outdoors.
A material that suits modern architecture
If you are building an extension with bifold or sliding doors, aluminium windows let you match frames across the whole elevation. The same colour, the same sheen and the same slim proportions run from the doors to the windows above them.
Aluminium is also the right answer where openings are very large, where frames are exposed to hard weather, or where you simply want the cleanest possible line.
Finished for the long term
Frames are powder coated: the colour is applied as a dry powder and cured in an oven to form a hard, even skin. Anthracite Grey, Jet Black and White are the most requested, but the full RAL range is available, and dual colour lets you have a bold exterior with a quiet interior.
Aluminium is endlessly recyclable, and a well-made frame should outlast the glass it holds several times over.
Your choices
Made to order, down to the details
Most requested colours
- Anthracite Grey RAL 7016
- Jet Black RAL 9005
- White RAL 9910
- Any other RAL colour to order
Specification
The details, in full
Typical specification. We confirm the exact details for your order on the quotation.
| System | Sheerline thermally broken aluminium |
|---|---|
| Styles | Casement, top hung and fixed picture windows; shaped frames to order |
| Glazing | Double or triple glazing; glass U-values from 0.9 W/m²K |
| Finish | Polyester powder coat in any RAL colour, single or dual colour |
| Security | Multi-point locking with key-locking handles |
| Guarantee | 10 years on frames, 5 years on sealed units, 2 years on hardware |
Questions
Good things to ask
Straight answers to the questions we hear most about this product.
Are aluminium windows cold?
Not any more. Modern frames have a thermal break, a strip of insulating material that separates the inside of the frame from the outside. Combined with high-performance glass they meet and exceed current Building Regulations.
Are aluminium windows more expensive than uPVC?
Generally, yes. Aluminium costs more to extrude and finish. In return you get slimmer frames, a wider colour choice and a very long service life. We are happy to quote both so you can compare.
Can aluminium windows match my bifold doors?
Yes. Windows and doors can be finished in the same RAL colour and gloss level so the whole elevation reads as one design.
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Get a price for aluminium windows
Tell us what you have in mind and we will come back with a clear, itemised quote. No pressure and no sales visit you did not ask for.