How Much Does Double Glazing Cost in 2026?
Typical prices for whole-house double glazing and repairs, what makes one quote dearer than another and what to check before you sign.
There is no single price for double glazing: it depends on how many windows you have, their size and style, the frame material and the colour. The figures below are what Checkatrade, the UK trade directory, was showing for other English cities in October 2026. They are a useful guide to whether a quote for a Leicester house is in the right range.
| Job (Checkatrade data, October 2026) | Typical range | Average |
|---|---|---|
| Double glazing installation, Milton Keynes | £1,633 – £4,582 | £2,778 |
| Window fitting, Cambridge | £2,073 – £5,516 | – |
| Double glazing installation, Southampton | £3,308 – £6,991 | £4,816 |
| Double glazing installation, Plymouth | £3,531 – £7,674 | £5,173 |
| Double glazing repair, Nottingham | £190 – £387 | £269 |
These are other cities' figures, not Leicester prices. Your installer will give you a fixed price after measuring.
Why two quotes can be so different
- Number and size of windows. The biggest factor.
- Style. Bays, sash-style and tilt and turn windows cost more.
- Colour. Woodgrain and coloured frames cost more than white.
- Glass. Triple glazing, obscure or toughened glass.
- Extras. New sills, internal making good, scaffolding and disposal of the old frames.
How to compare quotes
Make sure every quote states the same things:
- Number of windows and doors, and the style of each.
- Frame system and colour, glass specification and energy rating.
- FENSA or Certass registration and who issues the certificate.
- Guarantee length and whether it is insurance-backed.
- Deposit amount and when the rest is due.
Ways to pay less
- Stick with white frames and standard casements where the look allows.
- If only the glass has failed, replace the units, not the windows.
- Do the whole house at once rather than a few windows at a time.
- Get more than one quote and never sign on the day under pressure.
Common questions
Do these prices include fitting?
Yes, the figures are for supplied and fitted jobs. Check that your quote says so in writing.
Is VAT included?
Prices to homeowners normally include VAT. If a quote is shown without VAT, add 20% before comparing.
Free, no-obligation quote
Tell us what you need and your postcode. A local installer who works in your part of Leicester or Leicestershire will contact you to talk it through and, if you want, arrange a visit to measure up.
It costs nothing and you are not committing to anything. The number of windows and the type of house (terrace, semi, detached, bungalow) are enough for a first price.