Getting double glazing quotes in the UK

Once you know what to specify, the last step is gathering several written quotes and comparing them properly. Here is how to get double glazing quotes in the UK that you can actually judge.

Get at least three quotes

Prices for the same job vary widely between installers, so gathering at least three written quotes is the single best way to gauge a fair price. Each should follow a proper home survey — a reliable figure cannot be given over the phone or on the doorstep, because it depends on the size, style, glass specification and number of windows. Be wary of any price that is agreed on the spot with pressure to sign today; a genuine quote gives you time to think.

What a good quote includes

Compare like for like. A clear, itemised quote should state the frame material, the window style, the glass specification (Low-E, argon, warm-edge spacer, any acoustic or safety glass), the U-value or window energy rating, the competent person scheme certificate, the guarantee and its backing, and the payment terms. If two quotes differ sharply, the difference is often in the specification rather than the workmanship — which is why the guides to window frame materials and glass are worth reading first. You can also request a free no-obligation quote to see how the process works.

How to buy with confidence

You do not need a named brand to buy well — you need a short checklist. Look for these signals in any installer you consider:

• Registered with a competent person scheme such as FENSA or CERTASS, so the work is certified and notified to building control.
• An insurance-backed guarantee, so cover survives if the installer later ceases trading.
• Deposit protection in place before you pay anything up front.
• A written, itemised quote after a proper home survey — never a doorstep price.

Our guide to FENSA and CERTASS explained covers why scheme membership matters, and when to replace double glazing helps you time the work.

How getting quotes works here

1. Tell us about your home

   Answer a couple of quick questions and share where you are — it takes under a minute.

2. Get matched locally

   We connect you with vetted, accredited installers who cover your area.

3. Compare free quotes

   Receive free, no-obligation quotes and choose in your own time, with no pressure.

A word on funding

Some installers offer funding and contribution options, subject to eligibility and a home survey, and £0-upfront finance options may be available for those who qualify. Any figures depend entirely on your circumstances and should always be confirmed in writing after a survey — there are no guaranteed amounts. For the full decision from the start, see the double glazing buyer's guide.