
Windsor, Berkshire
Aluminium Windows in Windsor
Premium aluminium casement windows manufactured in Leeds using Cortizo systems. 2–10 day lead times, fleet delivery, and manufacturer-direct pricing for trade and retail.

- Lead Time
- 2–10 Working Days
- Max Frame Size
- 5,000 × 2,400mm
- U-Value
- From 1.4 W/m²K
- Glazing Range
- 28–44mm
Windsor. Photo by Aurelien Guichard from London, United Kingdom, CC BY-SA 2.0
Aluminium Windows for Windsor homes and sites
Windows are usually a whole-house order rather than a single opening, so colour consistency and accurate measurements matter more than lead time. Ordering every window together is the simplest way to keep the colour and finish consistent across the property.
We supply aluminium windows across the SL postcode area and the rest of Berkshire, including Slough (2 miles north-north-east), Gerrards Cross (7 miles north-north-east) and Bracknell (8 miles south-west).We manufacture and deliver — your own installer or builder does the fitting.
Windsor carries a lot of period and conservation-area stock, so colour and section profile tend to matter more here than raw specification. RAL colours and heritage-style doors are both available — check with the local planning office before you order.
Getting it to Windsor
- Lead time: 2–10 working days from confirmed sizes
- Delivered on our own fleet to a fixed date — Windsor is 165 miles south-south-east of Leeds, about 4 hours by road via the M1 and M25
- Made to the sizes you or your installer confirm — we don't install

Around Windsor
Windsor is in Berkshire. There are 25 other places we deliver to within 20 miles of it. Heading out of Windsor, the nearest we list are Slough to the north (2 miles), Esher to the east (13 miles), Weybridge to the south (10 miles) and Bracknell to the west (8 miles). We list 4 other places in Berkshire; the furthest from Windsor is Newbury, 31 miles due west.
Also within 20 miles: Weybridge (10 miles), Woking (12 miles), High Wycombe (12 miles), Esher (13 miles), Ealing (13 miles), Richmond (13 miles).
Recent deliveries near Windsor
Since June 2026 we've delivered aluminium windows within 10 miles of Windsor, to postcode districts including HP9, HP10, KT15, SL1, SL2, UB9 and UB10.
From our own delivery records, by postcode district. Trade orders are recorded at the installer's delivery address. Updated 23 October 2026.
Aluminium Windows — key specification
The same specification applies wherever we deliver. For the full detail, drawings and options, see the Aluminium Windows product page.
- Slim Cortizo aluminium sightlines
- Side hung, top hung and fixed light sash options
- Thermally broken profiles — U-values from 1.4 W/m²K
- Frame sizes up to 5,000 × 2,400mm
- Multi-point espagnolette locking as standard
- Fleet delivery to a date given when you order
Aluminium Windows in Windsor — questions we get asked
What U-value can I get on aluminium windows in Windsor?
From 1.4 W/m²K, depending on the glass specification. The Building Regulations limit for replacement windows in England is 1.4 W/m²K, so choose the glass with that in mind — ask us for the figure for your chosen build-up.
Can I have different colours inside and out?
Yes — dual-colour (a different colour inside and out) is available at no extra charge on stock finishes. A dark exterior with a white interior is a common combination.
What's the lead time for aluminium windows in Windsor?
2–10 working days from confirmed sizes — the same wherever you are. Windsor is about 165 miles south-south-east of our Leeds factory, and every order is delivered on our own fleet, to a fixed date confirmed when you order.
Do you offer trade prices on aluminium windows in Windsor?
Yes. Installers, builders and fabricators across the SL area — Windsor, Slough, Gerrards Cross and Bracknell — can open a trade account: manufacturer-direct pricing, no minimum order value and a dedicated account manager.
Before you buy aluminium windows
Other products for Windsor
Aluminium Windows for Windsor — get a price
Send your sizes or drawings and we will come back with a price, a lead time and a delivery date.
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