double glazing specialists in Truro
If you're looking for double glazing in Truro, you're in the right place. Pro-Fit Window Systems connects homeowners across Cornwall with FENSA-registered double glazing installers who offer free, no-obligation quotes.
Whether you're replacing a single window or upgrading your entire home, we match you with up to 3 trusted local specialists — so you can compare prices and choose the best deal. The average homeowner in South West England saves £352–£1,056 by comparing quotes rather than accepting the first offer.
Double Glazing prices in Truro 2026
Here's a guide to what you can expect to pay for double glazing in Truro. All prices are installed costs — use our free tool to get your exact local quote.
| Window Type | From (installed) | Up to (installed) |
|---|---|---|
| Casement (single) | £308 | £616 |
| Casement (large) | £440 | £792 |
| Sash Window | £528 | £968 |
| Bay Window (3-panel) | £1,056 | £2,816 |
| Tilt & Turn | £352 | £660 |
* Prices are estimates for Truro based on current market data. Your exact quote will depend on window size, specification and chosen installer.
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Get Quotes in Truro →FAQs — Double Glazing in Truro
How much does double glazing cost in Truro?
Cornwall double glazing prices typically range from £308 for a single casement window to £2,816 for a bay window, fully installed. Truro pricing is below the UK average — compare local quotes to find the best deal for your property.
How many days will my double glazing installation take?
The time required depends on how many windows are being installed. In Truro, a single window can be replaced in 2–4 hours, while a whole-house installation typically takes 2–3 days. Your installer will confirm the schedule during their free property survey.
Are the window fitters in Truro properly certified?
Yes — we only work with FENSA-registered installers in Truro and across Cornwall. FENSA certification confirms compliance with UK Building Regulations, and every installation is backed by a 10-year insurance guarantee as a result.
Is planning permission required for window replacement in Truro?
For the majority of Truro properties, window replacement is classed as permitted development and does not need planning permission. Exceptions apply if your home is in a Cornwall conservation area or is a listed building, in which case local authority consent may be required.