What new windowscost in 2026.

Fitted prices for a typical three-bed house in the UK, for homeowners.

Georgian house with box sash windows

Prices, fitted

uPVC, whole three-bed house8 to 10 windows, supplied and fitted
£4,000–£8,000
One uPVC casement windowSupplied and fitted
£400–£750
Aluminium, whole three-bed house8 to 10 windows, plus £800–£2,000 to fit
£5,600–£8,665
New timber sash, softwoodPer window, fitted
£1,200–£2,500
New timber sash, hardwoodPer window, fitted
£1,800–£3,500
Sash window overhaulPer window: cords, seals, easing and balancing
£350–£650
Sash window full refurbishmentPer window: timber repairs and redecoration too
£650–£1,200

London and the South East usually cost more. Whether VAT is included varies between sources.

Before you sign

A FENSA certificateProof the windows meet Building Regulations and are registered with the council. You need it when you sell.
Repair before you replaceA sound box sash can often be overhauled for a fraction of the price of a new one.
Conservation areasuPVC is often refused on older houses in conservation areas. Ask before you choose a material.
0% VAT on draught-proofingDraught stripping fitted in a home is zero rated until 31st March 2027.

Sources, checked 28th September 2026: Federation of Master Builders, Help2Buy Scheme, How Much Should It Cost, BestBuilders, Colin's Sash Windows, Expertsure, FENSA, HMRC VAT Notice 708/6. Prices are guides, not quotes.

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