uPVC Window Prices: How Much Do They Cost Fitted?
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Per window, supply and fit
| Size | Example | Inc VAT |
|---|---|---|
| Small | 600 x 900 — WC, landing, porch | £530 |
| Standard | 1200 x 1200 — most bedroom and lounge windows | £745 |
| Large | 1800 x 1350 — front lounge, patio-side | £1,085 |
| Extra large | Picture windows and wide mullioned units | £1,489 |
uPVC against aluminium
| Frame | Eight windows fitted, inc VAT |
|---|---|
| uPVC, white | £6,774 – £12,317 |
| Aluminium, colour included | £13,413 – £24,387 |
uPVC is the lower-cost frame and the one most UK homes have. Aluminium costs a little over twice as much for the same window; its frames are slimmer for the same strength, and a coloured finish is part of its price rather than an extra.
Neither is right for every house. The choice usually comes down to budget, the look you want, and how large the glazed areas are.
Example: a 3-bed semi in uPVC
Eight windows, mostly standard 1200 × 1200 bedroom sizes with two large downstairs: £6,774 to £12,317 fitted, inc VAT. A single standard window ordered on its own comes to £854 to £1,552, because the minimum charge applies.
What is included in these prices
Supplying and fitting the new windows, taking out and taking away the old ones, and sealing and making good around each new frame. VAT is in every figure.
Access for upstairs windows is included where the estimate needs it (£936 a job for a scaffold tower), and small jobs carry a minimum charge of £970. Not included: new sills or lintels where the old ones have failed, internal decorating, and anything structural.
How these prices compare with other UK guides
Published guides often come in lower. Checkatrade’s window cost guide (last updated July 2026) puts a standard 1,200 × 1,200 mm uPVC casement at £450–£550 plus VAT, about £540–£660 with VAT, and a 3-bedroom house with 12 windows at £5,000–£10,000 plus VAT.
Our figure for the same standard window is about £745 including VAT, for the window itself, fitted, as part of a larger job. It is built from what these jobs typically settle at with established installers. Our estimates then add taking the old frames away, making good and, where needed, access for upstairs windows, which is why the table above, and our £847 to £1,540 a window on an eight-window job, work out at more per window than this. A smaller local firm may quote less than our range; some national companies quote at the top of it.
Whichever figure you use, compare quotes like for like: check each one says whether removal, access, making good and VAT are included.
Planning estimate or quotation?
Every figure on this page is a planning estimate: what a job like this typically costs, for budgeting and for judging the quotes you get. It is not a quotation. A quotation comes from an installer after a survey, when the exact sizes, specification and condition of your house are known.
Facet Pro narrows the estimate to your own house from a photograph of the front — the windows it can see, the wall it can measure against your front door — and says which parts are measured and which are estimated for your house type. Your installer confirms the figure on survey.
Common questions
How much is a uPVC window fitted?
About £745 a window for a standard 1200 × 1200, supplied and fitted, inc VAT, when several are replaced together. One on its own comes to £854 to £1,552, because of the minimum charge — more once access is added, and more with some companies than others.
Does colour cost extra on uPVC?
A non-white finish such as anthracite adds about 8% to the window price.
Is uPVC cheaper than aluminium?
For the same window, yes — aluminium is a little over twice the price.
Facet Pro is in early access. We are starting to check how we measure wall area from a photograph against surveyed properties, so treat wall and roof figures as indicative and window figures as a guide.
Your house isn’t average.
See this project on your own home and get a planning estimate. Any figure on this page is for a typical house. Start with one photograph of the front and we will find your windows, doors, roof and walls, estimate your wall area, and price your own elevation.
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These are planning estimates — not a quotation, and not a survey. Windows and doors: what these jobs typically sell for, from 25 years in the home improvement industry, checked against current UK prices. Render, roof and roofline: UK material and labour rates, with scaffolding, waste and VAT. What you pay depends on your own house and, more than anything else, on which company quotes it. Your installer confirms the figure on survey. Prices checked October 2026.