
Slough, Berkshire
Aluminium Windows in Slough
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
- 3,000 × 2,200mm
- U-Value
- From 1.4 W/m²K
- Glazing Range
- 28–44mm
Slough. Photo by alwye, CC BY-SA 4.0
Aluminium Windows for Slough 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 Windsor, Gerrards Cross and Beaconsfield. We manufacture and deliver — your own installer or builder does the fitting.
Getting it to Slough
- Lead time: 2–10 working days from confirmed sizes
- Delivered on our own fleet to a fixed date — Slough is 163 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

Aluminium Windows — key specification
The same specification applies wherever we deliver. For the full detail, drawings and options, see the Aluminium Casement 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 3,000 × 2,200mm
- Multi-point espagnolette locking as standard
- Fleet delivery with guaranteed fixed dates
Aluminium Windows in Slough — questions we get asked
What U-value can I get on aluminium windows in Slough?
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 Slough?
2–10 working days from confirmed sizes — the same wherever you are. Slough is about 163 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 Slough?
Yes. Installers, builders and fabricators across the SL area — Slough, Windsor, Gerrards Cross and Beaconsfield — can open a trade account: manufacturer-direct pricing, no minimum order value and a dedicated account manager.
Other products for Slough
Aluminium Windows for Slough — 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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