Gable Windows
Overview
Aluminium gable windows are shaped to follow the line of a pitched roof, filling the apex of an extension, barn conversion or double-height room with glass. Slim aluminium frames keep the view as open as possible and make a striking architectural feature both inside and out.
Gable glazing is often designed together with bi-fold or sliding doors below, so the glass runs from floor to ridge. We make triangular and trapezoid shapes, with or without upstands, to suit your roof pitch, and colour-match the frames to your doors.
Every project starts with a free design visit, where we help you choose the style, colour, glazing and hardware, then take a full measure for an accurate quote. A surveyor checks every detail before anything is made, and our own fitting team installs your windows carefully and leaves your home clean.
You receive a FENSA certificate, a 10-year insurance-backed guarantee and the manufacturer's product guarantee. We supply and fit aluminium gable windows across London, Hertfordshire, Kent and Surrey. Compare them with our picture windows, or book a free design consultation.
The Origin window system we use
Shaped gable windows are made on Origin's OW-80 Premium system.
Origin OW-80 Premium: a flush frame with a timber-like finish, a 91mm sightline and U-values as low as 0.8 W/m²K with Aerogel.
Triangle or trapezoid shapes, each with or without upstands.
Tested to PAS 24 and Secured by Design accredited, in over 150 RAL colours, with Origin's guarantee of up to 20 years.
Gable windows: frequently asked questions
What shapes can you make?
Triangular and trapezoid gable windows, each with or without upstands, designed to follow your roof pitch.
Can the gable match my doors below?
Yes. We design the gable and doors together so the frames line up, and finish them in the same colour from over 150 RAL shades.
Do gable windows work on a new extension?
Yes. They are a popular way to bring light into vaulted extensions. We work alongside your builder and measure once the structure is in place so the glazing fits exactly.
Will a glazed gable need Building Regulations approval?
Glazing in a new extension is covered by the extension's Building Regulations approval, and replacement windows in existing homes are certified through FENSA.
Explore the full range: see all our aluminium windows.
You may also like: picture windows, bi-fold doors and roof lanterns.
Get a free quote: call 020 4581 8351, email sales@aliluxe.co.uk or request a quote online. More answers on our FAQ page.
Download our brochure: see the full Origin range in our product brochure (PDF) →.
Features
1. Shaped to Your Roof
Triangle or trapezoid frames that follow the roof pitch.
2. With or Without Upstands
Options to suit the way your gable is built.
3. OW-80 Premium System
Flush aluminium frames with a timber-like finish.
4. Colour-Matched
Over 150 RAL colours to match doors and windows below.
5. Thermal Performance
U-values as low as 0.8 W/m²K with Aerogel.
6. Tested Security
PAS 24 tested and Secured by Design accredited.
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Benefits
1. Dramatic Light
Glass up to the ridge floods vaulted rooms with daylight.
2. Architectural Feature
A glazed gable makes an extension stand out.
3. Floor-to-Ridge Views
Designed with the doors below for a continuous glass wall.
4. Warmer Rooms
Thermally efficient frames help keep heat in.
5. Low Maintenance
Powder-coated aluminium that never needs repainting.
6. Built to Last
Strong, stable frames for large shaped panes.
