How we price replacement windows

Our prices are guides, not quotations

This page explains how we price replacement windows. Every price here is a guide range compiled from published UK price guides, each one cited on the page it supports. It is not a quotation and it cannot be one, because your cost depends on your house, the access, what you choose and who you hire. Two quotes for what sounds like the same job can differ widely for good reasons.

We round the figures on purpose. £5,500 is honest about its own precision in a way that £5,483 is not.

How we price replacement windows: where each price comes from

Each type-of-home page lists the price guides behind its figures, with the date we read them. We take several sources for each, convert them to a common basis and set the range to cover what most people pay. What replacement windows cost then lays every home type side by side for any region.

From, typical and up to

Each home type has three figures. Typical is what most people pay for the job described beside it, such as nine casement windows on a three-bedroom semi. From and up to mark the simplest and the most involved versions, and the gap between them is often the most useful thing on the page.

How we price replacement windows by region

We hold one national figure per job and scale it by a regional multiplier. The multipliers reflect what domestic fitters charge for labour, and they run from 1.25 in London to 0.88 in Northern Ireland against an East Midlands baseline.

Windows cost much the same to buy wherever you are. Labour does not, and it explains most of the regional gap.

VAT

Prices are stored without VAT and the rate is added when the page is built, so every figure you see includes it. Replacement windows are standard-rated at 20%, because glazing is not one of the energy-saving materials that HMRC relieves from VAT. A small fitter who is not VAT-registered will not charge it, which is one reason quotes differ. See VAT on replacement windows, or the official position in HMRC VAT Notice 708/6.

This is general information, not tax advice. Confirm your own position with the firm doing the work, or with HMRC.

Grants

We have not found a national grant that pays for replacing windows, so nothing is deducted from any price here. If you are told you qualify for one, ask who runs the scheme and read its terms before you rely on it.

Finance figures

The repayment examples use a standard amortisation at a rate you choose. We name no lender, link to no credit product and earn nothing from finance. They are arithmetic, not an offer, and they always show the total repayable and the interest beside the monthly amount.

How often prices are reviewed

Each page carries a review date. We review prices from time to time and whenever something moves the market, and we check VAT more often, because the rules change on fixed dates and a stale figure there does more harm.

If a price looks wrong to you, tell us. It is the quickest way for us to find out.