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What you can compare

Replacing windows or doors is one of the biggest improvements you can make to comfort, security and energy bills. Here is what to weigh up and what it typically costs.

• uPVC, aluminium and timber-effect windows
• Composite, French and back doors
• Bifold and sliding patio doors
• Conservatories and orangeries
• Energy ratings, glazing and multi-point locks

Typical UK costs

A full-house uPVC window replacement commonly runs from around £3,000 to £6,000. A composite front door is typically £900 to £1,800 fitted, and bifold doors start at roughly £2,000 per set depending on size and finish.

Prices are approximate UK averages — get quotes for your exact job and postcode.