Premium aluminium windows at trade prices — just for being flexible.
We've stripped away the sales tactics to show you the bottom line prices for 2026. The rule is simple: National Brand > Regional Installer > Local Fitter — every time, no exceptions.
| Item | National Brand (Retail) | Regional Installer | Local Fitter |
|---|---|---|---|
| Aluminium Casement Window (1–4 units) | £1,183 | £887 | £651 |
| Aluminium Casement Window (5–8 units) | £1,144 | £858 | £629 |
| Aluminium Casement Window (9–14 units) | £988 | £741 | £543 |
| Aluminium Bifold Doors (2 panels) | £6,980 | £5,235 | £3,839 |
| Aluminium Bifold Doors (3 panels) | £9,100 | £6,825 | £5,005 |
| Aluminium Bifold Doors (4 panels) | £12,600 | £9,450 | £6,930 |
If you are replacing all the windows and doors in your home, here is what the total bill typically looks like for Cornwall property types.
| Property Type | National Brand (Retail) | Regional Installer | Local Fitter |
|---|---|---|---|
| 2-Bed Terraced (5 alum windows, 1 uPVC door) | £7,560 | £5,670 | £4,157 |
| 3-Bed Semi-Detached (9 alum windows, 2 doors) | £12,572 | £9,429 | £6,911 |
| 4-Bed Detached (13 alum windows, 3 doors) | £19,424 | £14,568 | £10,678 |
| Detached Bungalow (9 alum windows, 2 doors) | £12,572 | £9,429 | £6,911 |
Premium aluminium windows at trade prices — just for being flexible.
When a major glazing brand has an empty fitting week in Cornwall, they'd rather fill it at a significant discount than leave their fitters idle. GlazeIQ connects you to those slots. You get the exact same premium A-rated product and 10-year guarantee — at trade prices.
Check for Standby Slots in CornwallAluminium windows cost around 30% more than equivalent uPVC because of the material cost and more complex manufacturing process. National brands charge a further premium for their marketing and guarantees. Local fitters are cheaper but carry more risk. GlazeIQ's standby slots give you the national brand aluminium product at a price that undercuts regional installers significantly.
In 2026, Premium aluminium windows in Cornwall cost £1,183 per unit from a national brand, £887 from a regional installer, or £651 from a local fitter. Prices are always: National Brand > Regional Installer > Local Fitter.
The best way to get trade prices on premium aluminium windows in Cornwall is to be flexible on your installation date. GlazeIQ connects you to standby slots with the UK's biggest brands — same premium A-rated products, same guarantees, at trade prices.
Yes. In Cornwall, the price hierarchy is always: National Brand > Regional Installer > Local Fitter. However, GlazeIQ's standby slots give you national brand quality at prices close to local fitter rates — without the risk of losing your guarantee.