8 REAL COSTS
Windows (whole house)
Double glazing salespeople are famous for the vanishing discount. Real whole-house prices people paid cut through the theatre.
Every price we track (hover a dot)
Quoted vs actually paid (real submissions)
The strongest signal there is: what one person was quoted, and what the same job actually cost them.
- quoted £20,000↓paid £8,000−60%
Salesperson dropped price: initial quote ~£20k, settled at c. £8k after negotiation
| Year | Region | Source | What it was | Paid | Src |
|---|---|---|---|---|---|
| 2023 | UK unspecified | Real bills paid | 9 windows, double glazing (paid, local company)9 windows double glazing; local recommended company; post undated, year approximate | £3,800 | source |
| 2023 | UK unspecified | Real bills paid | Whole-house: 7 windows + bay + front doorpaid | £6,000 | source |
| 2022 | UK unspecified | Real bills paid | Whole-house double glazing, price haggled down from quoteSalesperson dropped price: initial quote ~£20k, settled at c. £8k after negotiation | £8,000quoted £20,000 | source |
| 2023 | UK unspecified | Real bills paid | Whole-house: 10 windows + 3 doors incl composite front doorpaid | £8,500 | source |
| 2022 | South East (just outside M25) | Real bills paid | Whole-house double glazing, 8 windows (one bay) + 2 external doors8 windows including one bay, plus two external doors | £9,000 | source |
| 2020 | UK unspecified | Real bills paid | whole-house windows and doors (paid)10 windows (3 large), composite front door with glass panels, 2 sets of patio doors, one set of bifolds; stated as ~4 years before July 2024 | £10,700 | source |
| 2022 | UK unspecified | Real bills paid | 3-bed semi full glazing: coloured frames, aluminium bifolds, porch knockoutpaid; higher spec | £16,000 | source |
| 2022 | Surrey / Greater London | Real bills paid | Whole-house uPVC double glazing, 9 windows + door + aluminium bifold + porch3-bed semi entirely replaced; 9 uPVC windows, uPVC back door, aluminium bifold, uPVC porch replacement | £16,000 | source |
Common questions
How much does windows cost in the UK?
Across 8 real prices people actually paid, the median is £8,750, ranging from £3,800 to £16,000. These are real prices homeowners posted, not cost-guide estimates.
Why do windows prices vary so much?
Size, spec, region and the individual trade all move the figure, and cost guides rarely say which. Seeing what real people paid, with the details they shared, gives you a far better benchmark than a single average.
Are these windows prices quotes or actual bills?
Actual bills. We deliberately exclude quotes and estimates and only publish amounts people said they paid, each linked to the original post.
Related free guides
- How much do new windows cost for a whole house in the UK? →
- Double glazing cost in the UK and the salesman discount game →
- Triple glazing vs double glazing cost in the UK: is the upgrade worth it? →
- Loft conversion cost UK: room-in-roof, dormer and hip-to-gable prices →
- Dormer loft conversion cost UK: why it costs more and what to expect →
- Single storey extension cost UK: the per square metre reality →
Methodology: every price here is a real amount a UK homeowner said they paid, taken from a public forum post and linked to its source. We exclude quotes and estimates: paid, not quoted. We never invent figures and no sponsor can touch a number. Spot an error? Tell us and we'll fix or remove it fast.