Window cost guide

Welcome to our window cost guide — a plain-English hub for working out what replacement windows and doors should cost in the UK. Every guide here is built the same way: we break a quote down into its parts, show typical price ranges as clear per-window maths, and remind you that a home survey is the only thing that confirms the real figure for your property.

Prices move with frame material, glazing, sizes, colour, access and how many windows you fit at once. Rather than quote a single number that would be wrong for most homes, we give you honest ranges and the reasoning behind them, so you can sense-check any figure an installer puts in front of you.

Start with the big picture

If you are early in your research, begin with the headline numbers and work down into the detail:

• How much do new windows cost? — the headline UK ranges for a full replacement and what sits behind them.
• Cost per window — worked per-window maths so you can check a quote line by line.
• Whole-house window cost — how the per-window rate improves across a full property.

Guides by window and door type

• uPVC window cost estimates — typical ranges for the UK’s most popular, most affordable frame.
• Bay window cost — why a bay costs more than a flat window, and the range to expect.
• French door cost — door-set prices, glazing choices and what fitting adds.

Understand fitting and the factors

• Window installation cost — the labour, access and making-good side of a quote.
• What changes your window cost — the six factors that move the number most.
• Get a tailored cost estimate — turn these ranges into real quotes for your home.

How to use these guides

Treat every figure as a starting point, not a promise. Read the guide that matches your project, note the typical range, then request quotes so a vetted, accredited local installer can survey your home and confirm the exact price. Comparing a few like-for-like quotes is the surest way to see a fair rate.