In 2026, a standard foam-core composite front door in Cornwall costs around £2,100 fully installed by a national brand — but local fitters charge as little as £1,575 for the same job. Here are the real bottom line prices, with no sales tactics.
When searching for new composite doors in Cornwall, the prices you see advertised online rarely reflect what you'll actually pay. The UK double glazing industry is notorious for inflated retail prices designed to allow for heavy "discounts" during the sales pitch.
We've stripped away the sales tactics to show you the bottom line prices for 2026. Here is exactly what you should expect to pay in Cornwall, broken down by installer type. In every case: National Brand > Regional Installer > Local Fitter — no exceptions.
| Item | National Brand (Retail) | Regional Installer | Local Fitter |
|---|---|---|---|
| Composite Door (Foam Core) | £2,100 | £1,733 | £1,575 |
| Composite Door (Solid Timber Core) | £3,800 | £3,135 | £2,850 |
| uPVC Single Door | £1,840 | £1,380 | £1,012 |
| uPVC French Doors | £2,900 | £2,175 | £1,595 |
If you are replacing all the windows and doors in your home, here is what the total bill typically looks like based on Cornwall property types. All figures assume a foam-core composite front door as standard.
| Property Type | National Brand (Retail) | Regional Installer | Local Fitter |
|---|---|---|---|
| 2-Bed Terraced (5 windows, 1 composite front door) | £6,500 | £5,033 | £3,995 |
| 3-Bed Semi-Detached (9 windows, 1 composite front, 1 uPVC back door) | £10,780 | £8,243 | £6,349 |
| 4-Bed Detached (13 windows, 1 composite front, 1 uPVC back, 1 French doors) | £16,720 | £12,698 | £9,616 |
| Detached Bungalow (9 windows, 1 composite front, 1 uPVC back door) | £10,780 | £8,243 | £6,349 |
What the big brands don't advertise: when a major installer has an empty fitting week in Cornwall, they'd rather fill it at a significant discount than leave their fitters sitting idle.
GlazeIQ matches flexible homeowners with these empty pipeline slots. You get the exact same premium A-rated product and guarantees from a top UK double-glazing brand, but at a bottom line price that rivals local fitters.
Check for Standby Slots in CornwallYou'll notice a significant gap between the National Brand retail prices and the Local Fitter prices. National brands manufacture their own composite doors, offer robust 10-year guarantees, and carry full public liability insurance — but their retail prices are inflated to cover massive marketing budgets and salesperson commissions.
Local fitters in Cornwall source their doors from trade suppliers and install them for a day rate. They are cheaper, but if they cease trading, your guarantee often disappears with them.
This is why the GlazeIQ standby slot is the ultimate middle ground: you get the security and manufacturing quality of a major national brand, but at a price that undercuts regional installers significantly.
A foam-core composite front door in Cornwall costs around £2,100 fully installed by a national brand. A regional installer typically charges around £1,733, and a local fitter around £1,575. Top-of-range solid timber core composite doors cost £3,800 (national), £3,135 (regional) or £2,850 (local).
Yes. In Cornwall, local fitters are consistently the cheapest option for composite doors, followed by regional installers, with national brands being the most expensive. The price hierarchy is always: National Brand > Regional Installer > Local Fitter.
The best way to get trade-level prices on composite doors in Cornwall is to be flexible on your installation date. Major national brands often have gaps in their fitting schedules. By registering for a standby slot with GlazeIQ, you can fill these gaps at a heavily discounted bottom line price — national brand quality at close to local fitter prices.