window replacement specialists in Southampton
Homeowners in Southampton use Pro-Fit Window Systems to collect free window replacement quotes from trusted local installers. Every company in our Hampshire network is FENSA-registered and independently rated.
From a single window replacement to a full property upgrade, our network of Hampshire specialists will compete for your job. Homeowners in South East England who compare quotes typically save £420–£1,260 against the first price they're offered.
Window Replacement prices in Southampton 2026
Here's a guide to what you can expect to pay for window replacement in Southampton. All prices are installed costs — use our free tool to get your exact local quote.
| 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.
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Get Quotes in Southampton →FAQs — Window Replacement in Southampton
How much does window replacement cost in Southampton?
In Southampton, you can expect to pay from £368 for a standard casement window installed, up to £3,360 for a full bay window. Prices in Hampshire are in line with the national average. The best way to get an accurate price is to compare quotes from local FENSA-registered installers using our free tool.
How long does window installation take in Southampton?
Most installations in Southampton take 1–3 days, depending on the number of windows. A single window replacement typically takes 2–4 hours. Installers will usually survey the property first and give you an exact timeframe during the quote process.
How do I know your Southampton installers are trustworthy?
Yes — we only work with FENSA-registered installers in Southampton and across Hampshire. 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 Southampton?
In most cases, replacing windows like-for-like in Southampton does not require planning permission — it falls under permitted development. However, if you live in a conservation area or listed building in Hampshire, you may need consent. Your installer will advise you during the free survey.