Work out what new windows should cost
See transparent worked examples for uPVC casements, bay windows and doors — then confirm the real figure with free, no-obligation quotes from vetted local installers.
- Typical price ranges, shown as clear per-window maths
- No sales calls to see the numbers — the examples are right here
- A survey always confirms the exact price for your home
Get your tailored cost estimate
Two quick steps — then vetted local installers send free quotes.
Every estimate is just per-window maths
A quote is a stack of typical line items. Here are three worked examples so you can sense-check any figure an installer gives you.
Semi-detached, 8 uPVC casements
Front brick bay window
uPVC French doors to garden
Six things that change your window cost
Two homes on the same street can get very different quotes. These are the biggest reasons why.
Frame material
uPVC is usually the most affordable; aluminium and timber sit higher for the same opening.
Size & style
Larger openings, bays, sashes and shaped heads all use more material and labour than a standard casement.
Glazing spec
Double vs triple glazing, low-E coatings, acoustic or toughened glass each nudge the price.
Colour & finish
Woodgrain foils, dual colours and flush-fit designs typically carry a modest premium over white.
Access & fitting
Upper floors, scaffolding, awkward access and making good all add to the fitting side of the quote.
Quantity
Whole-house jobs usually earn a better per-window rate than replacing one or two windows on their own.
Ready to turn these factors into a real number for your home?
Get my free estimate →An estimate is the starting point — a survey confirms it
Our worked examples get you in the right ballpark. The exact price comes from a vetted, accredited local installer who measures up and confirms the figure on a free home survey.
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1. Enter your details
Tell us your postcode and how to reach you. It takes under a minute — no obligation and no cost.
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2. We match vetted local installers
You’re connected with accredited installers who cover your area and the type of work you need.
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3. Compare free, no-obligation quotes
Each installer surveys and confirms your real price, so you can compare like-for-like and decide in your own time.
What to look for in a quote
- Installers registered with a recognised scheme such as FENSA or CERTASS
- An insurance-backed guarantee on the workmanship
- Deposit-protection so any money paid up front is safeguarded
- A written, itemised quote after a proper home survey
- Funding and contribution options, subject to eligibility and a home survey
Prefer to read installer feedback first? You can see verified installer reviews before you request quotes.
Dig into the numbers by window type
Detailed worked examples and typical ranges for the questions homeowners ask us most.
How much do new windows cost?
The headline ranges for a full replacement, and what sits behind them.
Read the guide →
Cost per window
Worked per-window maths so you can sanity-check any quote line by line.
Read the guide →
uPVC window cost estimates
Typical ranges for the UK’s most popular, most affordable frame.
Read the guide →
Bay window cost
Why bays cost more than flat windows, and the range to expect.
Read the guide →
French door cost
Door-set prices, glazing choices and what fitting adds to the bill.
Read the guide →
Whole-house window cost
How the per-window rate improves when you do the whole property.
Read the guide →Put a real number on your project
You’ve seen the maths — now let vetted local installers confirm the exact price for your home with free, no-obligation quotes.
Get my window cost estimate →Window cost questions, answered
Are these prices a fixed quote?
No. Everything on this site is a typical range to help you plan. The only way to get a firm price is a free home survey, where an installer measures up and confirms the exact figure for your windows.
Why do quotes vary so much between installers?
Frame material, glazing spec, sizes, colour, access and how many windows you’re doing all move the price. Comparing a few like-for-like quotes is the best way to see a fair rate for your home.
Is there any cost to get quotes?
No. Requesting quotes through this site is free and there’s no obligation to go ahead. Funding and contribution options may be available for those who qualify, subject to eligibility and a home survey.
How quickly can someone come out?
It varies by area and season, but installers often have survey appointments available within a couple of weeks. Once you submit your details you’ll be matched with installers covering your postcode.
See your estimate become a quote
Two quick steps and you’ll be comparing free quotes from vetted local installers.
Start my estimate →