What Do New Windows & Doors Cost?
Transparent, no-nonsense guidance on what affects pricing and how to get the best value.
Average Cost Per Window (Fully Installed)
£450 – £700
Double-glazed casement windows, fitted by a professional
Style
Casement is often the baseline. Bay, sash, and specialty styles cost more.
Size & Quantity
More windows and larger panes raise overall costs, but lower price per unit.
Energy Efficiency
Single glazing is lowest cost, double is standard, and triple maximizes efficiency.
Installation Complexity
Upstairs installs, stone buildings, or custom frames add labour costs.
Estimate Your Costs Instantly
Use our quick calculator to get a ballpark figure for your project based on glazing and material.
£0 – £0
5 windows • Casement Windows • Double glazing
Estimated total cost including installation
Costs may vary slightly by region — installer quotes will reflect your local rates.
Free, no obligation. Takes 2 minutes.