double glazing specialists in Maidstone
Homeowners in Maidstone use Pro-Fit Window Systems to collect free double glazing quotes from trusted local installers. Every company in our Kent network is FENSA-registered and independently rated.
From a single window replacement to a full property upgrade, our network of Kent specialists will compete for your job. Homeowners in South East England who compare quotes typically save £416–£1,248 against the first price they're offered.
Double Glazing prices in Maidstone 2026
We've compiled current installed price ranges for double glazing in the Kent area. Actual costs depend on window size and specification — compare quotes for a precise figure.
| Window Type | From (installed) | Up to (installed) |
|---|---|---|
| Casement (single) | £364 | £728 |
| Casement (large) | £520 | £936 |
| Sash Window | £624 | £1,144 |
| Bay Window (3-panel) | £1,248 | £3,328 |
| Tilt & Turn | £416 | £780 |
* Prices are estimates for Maidstone based on current market data. Your exact quote will depend on window size, specification and chosen installer.
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Get Quotes in Maidstone →FAQs — Double Glazing in Maidstone
How much does double glazing cost in Maidstone?
Installed double glazing costs in Maidstone start from around £364 per window and can reach £3,328 for larger bay units. Kent prices are in line with the national average. Getting multiple quotes through our free service is the most reliable way to establish an exact budget.
What's the typical installation time for double glazing in Maidstone?
For most Maidstone properties, window installation takes between one and three days. Replacing a single window can be completed in half a day. Your Kent installer will carry out a free survey before the job and give you a precise timeline.
Are the window fitters in Maidstone properly certified?
Yes. Every installer in our Maidstone network is FENSA registered, which means they are certified to install replacement windows in compliance with UK Building Regulations. FENSA registration also provides a 10-year insurance-backed guarantee on all installations.
Is planning permission required for window replacement in Maidstone?
For the majority of Maidstone properties, window replacement is classed as permitted development and does not need planning permission. Exceptions apply if your home is in a Kent conservation area or is a listed building, in which case local authority consent may be required.