
Northallerton, North Yorkshire
Aluminium Windows in Northallerton
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
Northallerton. Photo by Trevor Littlewood, CC BY-SA 2.0
Aluminium Windows for Northallerton homes and sites
Windows are usually a whole-house order rather than a single opening, which means colour consistency and survey accuracy matter more than lead time. We make every frame to your surveyed sizes in one batch so the colour and finish match across the property.
We supply aluminium windows across the DL postcode area and the rest of North Yorkshire — Darlington, Ripon and Stockton-on-Tees are all on the same delivery run, so if you are coordinating more than one property it is worth ordering them together.
Getting it to Northallerton
- 5–12 working days from confirmed sizes
- Our own fleet on scheduled regional runs — 38 miles due north of Leeds, about an hour on the A61 and A1(M)
- We survey in this area on planned visits — we will group your survey with other work nearby, which normally means a slot inside a week or two.

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 Northallerton — questions we get asked
What U-value can I get on aluminium windows in Northallerton?
From 1.4 W/m²K depending on the glass specification, which comfortably meets current Building Regulations for replacement windows. We will confirm the exact figure for your glass build-up on the quote.
Can I have different colours inside and out?
Yes — dual-colour is a standard option. A dark exterior with a white or light grey interior is the most common combination, and it costs less than you would expect.
How quickly can you deliver aluminium windows to Northallerton?
5–12 working days from confirmed sizes. Northallerton is roughly 38 miles due north of our Leeds factory — about an hour on the A61 and A1(M) — so delivery is by our own fleet on scheduled regional runs. You get a guaranteed fixed delivery date rather than a courier window.
Do you offer trade prices on aluminium windows in Northallerton?
Yes. Installers, builders and fabricators across the DL area — Northallerton, Darlington, Ripon and Stockton-on-Tees — can open a trade account for published trade pricing, a named contact, and delivery to site or yard.
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Aluminium Windows for Northallerton — 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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