Choose the type of window and roughly how big the job is, and the calculator below gives a typical Hampshire price range. It covers all six services on this site, from a few replacement sealed units to a full set of timber sashes. The figures are the typical ranges published for each service.
Choosing small, typical or large
The same three sizes apply to every service, but what they mean changes with the job. Small is a single window, a single pair of doors or a few units. Typical is a handful of windows, a bay, or a pair with side panels. Large is a whole-house order or a premium specification. For each service:
What small, typical and large mean for each service
| Service | Small | Typical | Large |
|---|---|---|---|
| Casement windows | One standard window | Three to five windows | Whole house, coloured or flush-sash frames |
| Bay windows | Small square or three-facet bay | Typical front bay | Bow or full-height bay |
| Tilt and turn windows | One window | Three to five windows | Whole house or a full floor |
| Sliding sash windows | One uPVC vertical slider | Several uPVC sashes, or one or two timber | Whole-house timber sash set |
| Double glazing replacement | A few sealed units | Three to five full windows | Whole house |
| French windows | Standard pair | With side panels or low threshold | Wide, Juliet or premium specification |
How to read the result
Prices cover the frame, the glass and the fitting. If your project mixes things, for example casement windows for the back and a bay at the front, run the calculator once for each and add the results. Treat the top of the range as a sensible ceiling for a plain specification, not a hard limit. Large panes, awkward access and heavy making good can push a job above it.
The cost guides explain what is behind each range: casement windows, bay windows, tilt and turn, sash windows, double glazing replacement and French windows.
The calculator cannot see your house. Access, glass type, frame colour and the state of the surrounding brickwork all change the final price. Use the range to judge whether quotes are in the right area, then ask for itemised written quotes.
Frequently asked questions
How accurate is the window cost calculator?
It shows a typical range for each job size, based on the average costs published for each service on this site. Real quotes can fall outside it where access is difficult or the specification is high.
Does the estimate include VAT?
The ranges are guide figures for supply and fitting. Check whether each quote you receive is with or without VAT so you can compare like with like.
My job does not fit the three sizes. Which should I pick?
Pick the closest and treat the result as a rough bracket. If you have two different jobs, run the calculator once for each and add them up.
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