What’s the Average Cost of External Doors and Windows in 2025?
What’s the Average Cost of External Doors and Windows in 2025?
Replacing or upgrading your home’s external doors and windows can dramatically improve energy efficiency, security, and kerb appeal. Here’s what you can expect to pay in 2025 for timber, aluminium, and uPVC options—covering both supply and professional installation.
Window Costs by Material (per Window, Fully Fitted)
Average Material Cost (Standard Size)
uPVC £350–£600 Most affordable, low maintenance
Aluminium £600–£1,200 Sleek, modern, very durable
Timber £800–£1,500 Premium look, may require more maintenance
Bay or large windows: Add 50–100% to the above figures.
Double glazing is standard; triple glazing adds 20–30% to the cost.
External Door Costs by Material (Supply & Fit)
Average Material Cost (Front/Back Door)
uPVC £600–£1,000 Cost-effective, wide range of styles
Aluminium £1,200–£2,000 High security, contemporary finish
Timber £1,200–£2,500 Classic appearance, can be bespoke
Bifold or sliding patio doors (per set):
uPVC: £1,800–£3,000
Aluminium: £2,500–£5,000
Timber: £3,000–£6,000
What’s Included?
Removal and disposal of old units
Supply of new windows/doors with standard double glazing
Professional installation
Finishing and basic making good around frames
Additional Costs to Consider
Triple glazing: +20–30%
Custom colours/finishes: +10–20%
Heritage or conservation requirements: May increase costs
Disposal of hazardous materials (e.g., old lead windows): Extra charges possible
Summary
Window uPVC £350–£600, Aluminium £600–£1,200, Timber £800–£1,500
Door uPVC £600–£1,000, Aluminium £1,200–£2,000, Timber £1,200–£2,500
Bifold/Patio uPVC £1,800–£3,000, Aluminium £2,500–£5,000, Timber £3,000–£6,000.
Quick Tips
Always get a detailed, written quote tailored to your property.
Check if your home is in a conservation area—special permissions may apply.
Quality installation is key for energy savings and long-term performance.