Aluminium Windows
Slim sightlines and exceptional thermal performance.
- Up to 70% less frame than uPVC
- Triple glazing options
- RAL colour matching

Premium REAL aluminium windows, doors, bi-folds and sliding systems — fitted across Greater Manchester.
Aluminium frames are dramatically slimmer than uPVC — meaning more glass, more light, and a contemporary aesthetic ideal for extensions, rear elevations and statement entrances. Modern thermal breaks make aluminium just as energy-efficient as the best uPVC systems.
Aluminium is the frame of choice for anything where sightlines matter — bi-fold doors, wide rear-elevation sliders, minimalist windows on extensions, and modern front doors with real presence. Modern thermally-broken systems (a polyamide bar isolating the inside and outside faces) close the historic gap with uPVC on U-values.
We work with tried-and-tested UK-supported systems only. Every install carries our 2-year Alliance workmanship guarantee, and our aluminium bi-folds and sliders are PAS 24 tested for security.
Slim sightlines and exceptional thermal performance.
Front, back and side entrances with serious presence.
Concertina-style opening for true indoor–outdoor living.
More glass, less frame — modern by design.
Thermally broken frames keep heat in.
Powder-coated finish resists weather and corrosion.
Any RAL colour — match brickwork, render or interiors.
Multi-point locking and anti-lift hardware.
Modern aluminium rivals A-rated uPVC on U-values.
We look at the opening, discuss configuration (fold left, fold right, split), colour and threshold options.
Itemised — panel count, glazing spec, threshold detail, colour and hardware finish all listed.
Structural check of the opening, lintel and cill — critical for wide spans.
Bespoke sizes made to your RAL colour. Lead times are longer than uPVC — worth the wait.
Two-fitter install with proper lifting equipment for large sliders and bi-folds.
Running gear adjusted, thresholds sealed, demo of locking and operation before we leave.



The running gear is the one part of an aluminium door that benefits from a proper annual check — five minutes will keep the operation glass-smooth for decades.
Rochdale, Manchester, Oldham, Bury, Bolton, Stockport, Middleton, Prestwich, Ashton-under-Lyne, Heywood, Tameside, Milnrow and every town in between.
Alliance guarantees its installation workmanship for 2 years from completion.
Many products we install come with a manufacturer warranty. The exact cover and duration depend on the product and manufacturer selected, and are confirmed with your quotation.
Tell us about your project and we'll be back in touch — we aim to respond the same working day.
A few details about the job and where it is.
A member of the Alliance team looks at what you need. We aim to respond the same working day.
We'll discuss the job with you and arrange a quotation — with a site visit where the work needs one.
No call centres, no scripts. Just honest guidance from the people who'll be doing the work.