window replacement specialists in Swansea
If you're looking for window replacement in Swansea, you're in the right place. Pro-Fit Window Systems connects homeowners across City and County of Swansea with FENSA-registered window replacement 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 Wales saves £344–£1,032 by comparing quotes rather than accepting the first offer.
Window Replacement prices in Swansea 2026
The table below shows typical installed prices for window replacement in Swansea and the City and County of Swansea area. Prices vary by specification — get an exact quote using our free tool.
| Window Type | From (installed) | Up to (installed) |
|---|---|---|
| Casement (single) | £301 | £602 |
| Casement (large) | £430 | £774 |
| Sash Window | £516 | £946 |
| Bay Window (3-panel) | £1,032 | £2,752 |
| Tilt & Turn | £344 | £645 |
* Prices are estimates for Swansea based on current market data. Your exact quote will depend on window size, specification and chosen installer.
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Get Quotes in Swansea →FAQs — Window Replacement in Swansea
How much does window replacement cost in Swansea?
In Swansea, you can expect to pay from £301 for a standard casement window installed, up to £2,752 for a full bay window. Prices in City and County of Swansea are below 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 many days will my window replacement installation take?
The time required depends on how many windows are being installed. In Swansea, 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.
How do I know your Swansea installers are trustworthy?
Absolutely. FENSA registration is a mandatory requirement for all companies in our Swansea network. It certifies that installers meet UK Building Regulations standards and automatically includes a 10-year insurance-backed guarantee on every job.
Is planning permission required for window replacement in Swansea?
For the majority of Swansea properties, window replacement is classed as permitted development and does not need planning permission. Exceptions apply if your home is in a City and County of Swansea conservation area or is a listed building, in which case local authority consent may be required.