Large-house budget · 2026
5 Bedroom House Window Replacement Cost
Five-bedroom homes tend to have more openings, but the spread is wide: a tall townhouse, large detached house and converted property can all have the same bedroom count with very different window schedules. This guide therefore uses a 12–16 window range.
Quick price answer: Twelve medium standard uPVC windows model at £3,923–£7,127, fourteen at £4,576–£8,315 and sixteen at £5,111–£9,286 before adding bays, premium materials or doors.
Five-bedroom project examples
These are standard-window baselines to help size the overall budget.
Figures are modelled UK-average fitted-market estimates from the Window Price Calculator engine, using its 24 September 2026 research refresh. They include ordinary removal, standard fitting, basic making good and VAT; scaffolding, hidden structural repairs and highly bespoke work can sit outside the range.
Large houses magnify specification choices
Small per-window upgrades become large project differences across 12–16 openings.
Frame material
Moving from standard uPVC to flush uPVC, aluminium or sash systems across a whole house can add thousands rather than hundreds.
Complex openings
Bays, large feature windows, French doors, bifolds and unusual glazing should be priced separately rather than hidden inside an average per-window figure.
Budget items often missed on larger homes
The basic model assumes ordinary access and straightforward replacement.
- Scaffolding or specialist access for high or awkward elevations.
- Large bays, gables or feature glazing that do not behave like medium casements.
- Multiple doors included in the same project.
- Heritage, conservation or bespoke colour requirements.
Use your own project
Start a replacement estimate.
Use the calculator to price a complete replacement window or door. Choose the closest product and project size and we’ll carry those choices into the full calculator.
Rough sizes are fine. The full personalised result is unlocked after the £2.99 checkout.Related price guides
Use the closest related guide to compare another specification or project type.
Questions people ask
How much are replacement windows for a 5 bedroom house?
Using 12–16 medium standard uPVC windows, our model ranges from £3,923–£7,127 to £5,111–£9,286 at UK-average pricing.
Is 14 windows a normal assumption?
It is only a middle-case example for pricing. The right count is the number of actual openings in your property.
Do larger projects get a lower price per window?
The model applies modest job-size efficiencies because survey, travel and setup overheads are spread over more units.
Build the actual window schedule for your house.
Start with fourteen standard windows, then replace the assumptions with your real bays, sashes, aluminium frames and doors.
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