Combined replacement projects · 2026
Windows and Doors Cost UK
Replacing windows and doors together is usually better assessed as one project than as a stack of single-item prices. Larger jobs can spread survey, travel and installation overheads across more units, while door types still carry their own product costs.
Quick price answer: Our model gives £3,883–£7,056 for eight medium standard uPVC windows plus a composite front door. Ten windows, a front door and a sliding patio door model at £5,682–£10,324.
Combined project examples
These examples use UK-average pricing and standard replacement conditions.
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.
Why combined projects behave differently
The calculator applies job-size efficiency rather than multiplying a one-window price by the quantity.
Shared overheads
Survey, travel, setup and administration are spread across more items, so the effective price per standard window tends to fall on larger projects.
Doors still matter
A composite front door, patio door or bifold has a much larger unit value than a standard window, so the product mix matters as much as the total item count.
Example project composition
This shows why “how much for all my windows and doors?” needs a product list.
| Project | Modelled fitted range | Main driver |
|---|---|---|
| 10 windows | £3,343–£6,074 | Window quantity |
| 8 windows + front door | £3,883–£7,056 | Adds entrance-door specification |
| 10 windows + front + patio | £5,682–£10,324 | Adds two higher-value door products |
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
Is it cheaper to replace windows and doors together?
Larger projects can have better per-item economics because fixed survey, travel and setup costs are spread over more units. The actual saving depends on product mix and installer.
How much are 8 windows and a front door?
Our current UK-average model gives £3,883–£7,056 for eight medium standard uPVC windows plus a composite front door.
Can I mix products in the calculator?
Yes. You can add several window and door types to one estimate so the job-size effect is applied to the combined project.
Build the whole project in one estimate.
Add your windows first, then add the front, patio, French or bifold doors that belong to the same job.
Start my estimate · £2.99