UK price guide · Updated 26 Sep 2026
Window Prices UK
For a standard white uPVC casement, the current model centres at about £399 for a small window, £526 for a typical 1200×1200 window and £670 for a larger multi-section window. Other styles can cost substantially more.
Current price examples
These examples use the same current pricing engine as the calculator. They are market estimates rather than binding installer quotations.
What is included in these window prices?
The figures are fitted-market estimates rather than frame-only retail prices. Standard replacement fitting and ordinary 20% VAT are included. They assume a normal replacement job without scaffolding, major structural repairs or unusual access.
Why can two similar windows cost differently?
Overall size is only one factor. Opening sashes, mullions and transoms, colour, glass specification, frame style, region and the number of windows in the job all change the likely fitted price. That is why the calculator asks about layout rather than pricing by square metre alone.
What affects the price?
- Size and number of framed sections
- Fixed, side-hung and top-hung opening sashes
- uPVC, flush, sash, aluminium or bay construction
- Colour, glazing, region and total job size
What “fitted” means here: supply, standard replacement installation and ordinary 20% VAT are included. Unusual access, scaffolding, structural repairs, planning/listed-building requirements and highly bespoke work can sit outside the standard estimate.
Related price guides
Compare the closest related costs, then use the calculator for your own specification.
Questions people ask
Short answers to the most useful questions around this price topic.
How much is a typical uPVC window fitted?
A medium standard white uPVC example currently centres around £526 fitted nationally, with a broad range of £379–£673.
Are larger jobs cheaper per window?
Usually. Survey, travel and installation setup can be spread across more units, so the model applies a modest whole-job efficiency to standard uPVC projects.
Do these prices include VAT?
Yes. The consumer estimates assume ordinary 20% VAT.
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