The short answer
Secondary glazing in the UK typically costs £250–£700 per window supplied and fitted, with most standard windows falling around £275–£400 each. Across a whole home the total usually lands between £3,000 and £6,000 for a typical three-bed house with eight to ten windows, depending on the system. Acoustic specifications with thicker or laminated glass and a deep air gap sit higher, commonly £300–£600+ per window, and bespoke timber-framed units for period or listed homes cost more again. The main drivers are the size and number of windows, the glass specification and whether the frames are made to measure.
Price depends mainly on how many windows you have, how big they are, the glass specification and whether the units are standard or made to measure. The figures below are typical supplied-and-fitted prices for guidance, not quotations.
Typical UK costs
- Standard window£250–£400 supplied & fitted
- Acoustic window£300–£600+
- Typical three-bed home~£3,000–£6,000
- DIY supply onlyfrom ~£160 per window
- Bespoke / period frameshigher again
What drives the price
- Window size & count: you pay largely per window, so a home with more or larger windows costs more overall.
- Glass specification: standard float glass is the lowest-priced; thicker toughened or acoustic laminated glass for noise adds cost.
- Frame type: off-the-shelf aluminium-framed units are the lowest-priced; made-to-measure or timber-framed units for period homes cost more.
- Opening style: fixed panels are the lowest-priced, with hinged, lift-out and sliding (horizontal or vertical) units costing progressively more.
| Item | Typical figure | Notes |
|---|---|---|
| Standard window (supplied & fitted) | £250–£400 | off-the-shelf aluminium frame |
| Acoustic window | £300–£600+ | thicker / laminated glass, deep gap |
| Three-bed home (full) | ~£3,000–£6,000 | 8–10 windows, mid-range system |
| DIY supply only | from ~£160 / window | you fit it yourself |
Indicative UK figures for guidance. Sources: MyJobQuote and trade cost guides.
Why acoustic and period systems cost more
The base price buys a slim aluminium-framed pane that improves draughts and warmth. Paying more usually buys better glass and a wider air gap for noise, or made-to-measure timber frames that match a period or listed window. Because the glass and the gap do most of the acoustic work, a quote for noise reduction is rarely the cheapest line on the page — and that is where the value is if a busy road is the problem. Always compare quotes on the same glass specification and opening style, not just the headline price.
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Frequently asked questions
How much does secondary glazing cost per window?
Typically £250–£700 per window supplied and fitted, with most standard windows around £275–£400. Acoustic specifications with thicker glass and a deep air gap usually cost £300–£600 or more per window.
How much does it cost to do a whole house?
A typical three-bed home with eight to ten windows usually falls between £3,000 and £6,000 for a mid-range system, depending on window sizes, glass specification and frame type.
Why is the price range so wide?
Because windows differ. The number and size of windows, the glass specification, the frame type and the opening style all move the figure. A measured survey gives the accurate number for your home.
Sources & further reading
Figures on this page are typical UK ranges drawn from published sources and depend on your specific windows. They are guidance, not a quotation.