Durham, County Durham — where Mazuli supplies aluminium windows

Durham, County Durham

Aluminium Windows in Durham

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.

Aluminium Windows manufactured by Mazuli for customers in Durham
Lead Time
2–10 Working Days
Max Frame Size
5,000 × 2,400mm
U-Value
From 1.4 W/m²K
Glazing Range
28–44mm

Durham. Photo by No machine-readable author provided. Jungpionier assumed (based on copyright claims)., CC BY-SA 3.0

Aluminium Windows for Durham 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 DH postcode area and the rest of County Durham, including Bishop Auckland (9 miles south-south-west), Sunderland (12 miles north-east) and Gateshead (12 miles due north).We manufacture and deliver — your own installer or builder does the fitting.

Durham 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 Durham

  • Lead time: 2–10 working days from confirmed sizes
  • Delivered on our own fleet to a fixed date — Durham is 68 miles due north of Leeds, about 1½ hours by road via the A1(M)
  • Made to the sizes you or your installer confirm — we don't install
Aluminium Windows manufactured by Mazuli and supplied to Durham

Around Durham

Durham is in County Durham. There are 9 other places we deliver to within 20 miles of it. Heading out of Durham, the nearest we list are Sunderland to the north (12 miles), Hartlepool to the east (16 miles), Bishop Auckland to the south (9 miles) and Hexham to the west (25 miles). We list 4 other places in County Durham; the furthest from Durham is Stockton-on-Tees, 18 miles south-east.

Also within 20 miles: Darlington (17 miles), Stockton-on-Tees (18 miles), Whitley Bay (19 miles), Middlesbrough (20 miles).

Recent deliveries near Durham

Since June 2026 we've delivered aluminium windows within 10 miles of Durham, to postcode districts including DH3, DL17 and SR7.

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 Durham — questions we get asked

What U-value can I get on aluminium windows in Durham?

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 Durham?

2–10 working days from confirmed sizes — the same wherever you are. Durham is about 68 miles due north 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 Durham?

Yes. Installers, builders and fabricators across the DH area — Durham, Bishop Auckland, Sunderland and Gateshead — can open a trade account: manufacturer-direct pricing, no minimum order value and a dedicated account manager.

Aluminium Windows for Durham — get a price

Send your sizes or drawings and we will come back with a price, a lead time and a delivery date.

Request a Quote