double glazing specialists in Southampton
Homeowners in Southampton use Pro-Fit Window Systems to collect free double glazing quotes from trusted local installers. Every company in our Hampshire network is FENSA-registered and independently rated.
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 East England saves £420–£1,260 by comparing quotes rather than accepting the first offer.
Double Glazing prices in Southampton 2026
The table below shows typical installed prices for double glazing in Southampton and the Hampshire area. Prices vary by specification — get an exact quote using our free tool.
| Window Type | From (installed) | Up to (installed) |
|---|---|---|
| Casement (single) | £368 | £735 |
| Casement (large) | £525 | £945 |
| Sash Window | £630 | £1,155 |
| Bay Window (3-panel) | £1,260 | £3,360 |
| Tilt & Turn | £420 | £788 |
* Prices are estimates for Southampton based on current market data. Your exact quote will depend on window size, specification and chosen installer.
Get your free double glazing quote in Southampton
60-second form. No sales calls. Trusted FENSA-registered specialists.
Get Quotes in Southampton →FAQs — Double Glazing in Southampton
Double Glazing prices in Southampton — what should I budget?
Installed double glazing costs in Southampton start from around £368 per window and can reach £3,360 for larger bay units. Hampshire 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 Southampton?
For most Southampton properties, window installation takes between one and three days. Replacing a single window can be completed in half a day. Your Hampshire installer will carry out a free survey before the job and give you a precise timeline.
Are the window fitters in Southampton properly certified?
Absolutely. FENSA registration is a mandatory requirement for all companies in our Southampton network. It certifies that installers meet UK Building Regulations standards and automatically includes a 10-year insurance-backed guarantee on every job.
Do I need planning permission for new windows in Southampton?
Most standard window replacements in Southampton are covered by permitted development rights and require no planning application. If your property is listed or sits within a conservation area in Hampshire, additional consent from the local council may be needed — your installer can guide you through this.