Why we exist
Too many homeowners go into a double glazing purchase with no idea what a fair price looks like, and it costs them thousands. This site fixes that in two steps. First, the calculators and price tables give you an instant, realistic 2026 estimate so you know the going rate before anyone visits your home. Then, if you want firm prices, you can get free double glazing quotes from installers and compare them against that benchmark.
How the quote service works
The estimates on this site are free and always will be. If you fill in the form to get double glazing quotes, we pass your enquiry to Leads 2 Trade Limited, who run the comparison services Trusted Local Installers and CompareCompanies. They call you to confirm what you need, then pass your details to up to four local installers, who contact you to arrange quotes. The quotes come from those installers, not from us.
You stay in control: compare whatever you are offered with our quote checker, one of the free decision tools here, and walk away from any of them. There is no obligation to accept anything, and you can withdraw at any time. The benchmark prices on this site, like the decision tools that test them, are published for everyone to see, so you can hold every quote to the same numbers.
We are paid by Leads 2 Trade for referring enquiries, which is how the site is funded. It costs you nothing and it does not change the benchmark figures, which are compiled independently. Full detail on what happens to your data is in our privacy policy.
How we check our prices
We are an aggregator and reviewer of published cost data, not a proprietary survey. For every figure we cross-check at least two of Checkatrade, the FMB and GreenMatch, alongside installer guides such as ExpertSure, and we use a stated consensus range rather than a single cherry-picked number. Where sources disagree we show the spread, including cases where two named sources differ by more than double on the same product. The full process, including what we do not claim, is set out on our methodology page.
Who reviews the work
Every page is written and price-checked by our editorial team, and how we research double glazing prices sets out that process in full. Every figure is cross-referenced against the published 2026 cost guides from Checkatrade, the FMB and GreenMatch before it goes live, and carries the date it was last checked. The benchmark prices are published openly for everyone, so any quote we send you can be held to the same numbers you can see on the site.
What you can hold us to
If a figure on this site does not trace to a named 2026 source, it should not be here, and you are welcome to challenge it. We update the prices as new cost guides are published, and every article carries the date it was last reviewed. We will always tell you to get at least three written quotes and to check your installer is registered with FENSA before you commit. If you would rather see the whole picture at once, every page on this site is listed in one index.