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.

 
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