The quote was laid out clearly, line by line, so I knew exactly what I was paying for before anyone lifted a tool. No pressure and no jargon — just a straight price for the whole job.
What do new windows really cost — and how do you pay for it?
Straight answers on window and double glazing prices, plus £0‑upfront funding options that may be available if you qualify. Get fast, no‑obligation quotes from a vetted local installer.
Our installation partner, Help 2 Buy Windows, is rated 4.9/5 “Excellent” on Trustpilot from 12,000+ reviews —
the UK’s No.1‑rated installer on Trustpilot.
Indicative ranges
What do windows typically cost?
These are ballpark figures to set expectations only. Your real price depends on size, material, glazing spec, how many windows and access — so the only way to know yours is a quote.
| Project | Typical indicative range |
|---|---|
| One replacement window (uPVC casement) | £400–£850 |
| Bay window replacement | £900–£2,000 |
| Sash-style window (timber-alternative) | £700–£1,400 |
| Whole 3-bed semi (around 8–10 windows) | £4,000–£8,000 |
Indicative only — not a quote, offer or savings figure. See the full window replacement cost guide for how these are worked out.
How Fund My Windows works
Three simple steps from “what will this cost?” to a real, no-obligation quote.
1
Tell us about your home
Answer one quick question and pop in your details. It takes under a minute, and there is no obligation.
2
Get matched locally
We pass your enquiry to a vetted installation partner who covers your area and works to your budget.
3
Compare and decide
They will call to talk through costs, funding and contribution options, and a free home survey — then it is entirely your call.
What customers say about our installation partner, Help 2 Buy Windows
Rated 4.9/5 “Excellent” on Trustpilot from 12,000+ reviews — the UK’s No.1 double glazing installer. Reviews below are representative of feedback about window and door installations.
Being able to spread the cost made the whole thing feel manageable rather than one big lump sum. The team talked me through the options patiently and never rushed me into a decision.
The fitters turned up when they said they would and the final bill matched the quote to the penny — no surprises on the day. Tidy workers too; you would never know they had been in.
Explore the cost guides
Plain-English guides to what windows cost, what drives the price and how to spread it — no sales spin.
Window replacement cost guide
The 2026 overview: what a full window replacement really costs and what shapes the price.
Cost per window
Indicative price ranges for a single replacement window by material and style.
Prices by house size
Rough whole-house double glazing costs for flats, terraces, semis and detached homes.
Bay window cost
Why bays cost more than flat windows and the indicative ranges to expect.
What affects the price
Frame material, glazing, size, access and finish — the levers that move your quote.
Cheap vs quality
Where a bargain window can cost you later, and what is worth paying for.
Ways to spread the cost
Funding and contribution options for new windows, subject to eligibility.
Estimate your cost
Worked examples to help you sketch a realistic budget before you enquire.
Hidden costs to watch
Scaffolding, plastering, disposal and the extras that can catch you out.
Ready to find out what your windows will cost?
Get free, no-obligation quotes from a vetted local installer — with funding and contribution options explained, subject to eligibility and a home survey.
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