Rough cost bands by house size
These are broad UK ranges to help you sense check a quote, not a CW Doors price list. A two bedroom terrace with 6 to 8 windows commonly falls somewhere between £2,700 and £6,000 for standard uPVC casements. A three bedroom semi with 8 to 10 windows plus a bay tends to sit higher, often £4,500 to £9,000. A four bedroom detached house with 12 or more openings, especially with bays or French doors included, can run well beyond £10,000.
These bands move a lot with glass choice, frame colour, opening styles and how many large or awkward shaped windows are involved, so treat them as a starting point for a conversation rather than a fixed number.
| House type | Typical window count | Broad UK cost range |
|---|---|---|
| 2 bed terrace | 6 to 8 | £2,700 to £6,000 |
| 3 bed semi | 8 to 10 | £4,500 to £9,000 |
| 4 bed detached | 12+ | £10,000+ |
What a fitted price should actually include
A proper fitted quote covers survey, manufacture to size, removal and disposal of the old frames, fitting with insulation and sealant around the reveal, all hardware, and making good internally so you are not left with a mess to sort out yourself.
If a price looks unusually low, check whether disposal, external sealing or trims are extra. Ask the question directly rather than assuming.
Why quotes for the same house can vary so much
Frame profile thickness, chamber count, glass specification (double v triple, the low-E coating, the spacer bar), hardware quality and company overheads all move the price independently of each other. A national showroom brand with a large sales team is paying for that structure somewhere, and it is usually in the price you are quoted.
This is also why it pays to get a written, itemised quote rather than a single headline figure, so you can compare like for like.
Deposits and finance: what to watch for
A modest deposit to confirm manufacture is normal. Be wary of anyone asking for the full balance up front, or applying pressure to sign finance on the day of the quote. Take time to read any finance agreement away from the salesperson, and check the total repayable, not just the monthly figure.
A company confident in its price will let you think it over without chasing you daily.
Splitting the job into phases if budget is tight
Not everyone can, or wants to, replace every window in one visit. Doing the front elevation first, or the worst draughts first, is a perfectly sensible approach if it means the work actually gets done rather than being put off indefinitely. The main thing to check is that later phases will match the earlier ones in colour and profile, so ask any installer whether their ranges are likely to still be available in a year or two.
Bear in mind that phasing does usually cost a little more overall than one single job, simply because you are paying for more than one survey and one visit, so it is a trade off between cash flow now and total spend later.
Hidden extras that catch people out
Beyond the headline window price, a handful of items regularly get missed when comparing quotes. Scaffolding or a tower for upstairs windows on a house with restricted access, disposal of old frames that contain glass rather than just uPVC, and matching trims or cills where an existing colour or profile has to be replicated exactly can all add cost that is not obvious from a single figure on a page.
Internal decoration is another one worth planning for separately. Removing an old frame and fitting a new one almost always disturbs the plaster or paintwork around the reveal slightly, so budgeting a small amount for touching up decoration afterwards avoids an unwelcome surprise once the fitters have gone.
- Access equipment for upper floor or awkward windows
- Disposal of old frames and glass
- Matching cills, trims or brickmould to existing finishes
- Making good plaster or decoration around the new reveal
How glass choice moves the total
Glass specification is one of the biggest levers on a whole house total, often more than frame colour or hardware. Standard double glazing with a basic low-E coating sits at one end, while triple glazing, acoustic laminated glass for a busy road, or obscured glass for a bathroom each add their own premium per window. On a house with ten or more openings, choosing triple glazing throughout rather than only on the coldest elevation can noticeably change the final figure, so it is worth deciding early which rooms genuinely need the upgrade.
Where CW Doors fits into this
CW Doors & Windows fits uPVC windows from £450 per window fully fitted, with flush casement from £520, tilt and turn from £560 and triple glazed from £610, all quoted honestly with no pressure to sign on the day. As a family run installer covering Leicester and the surrounding area, keeping overheads low is how those prices stay realistic, and every quote is based on your actual windows rather than a generic price list.
Where to read next
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