WINDOW FRAME MATERIALS

Good-quality timber windows can improve the look of a house, add value and last 60 years or more if well looked after. However, they will need regular maintenance and can be pricey. Expect to pay anywhere between £350 and £1,000 per window, depending on the size and design. It can be more.

Aluminium is strong and frames can be very slim to maximise glazing. It’s low maintenance, long-lasting and comes in a range of colours. However, it doesn’t suit every style of house and has a high price tag. The average cost is pretty similar to timber windows, depending on the size and design you go for.

PU and PVC are good value and low maintenance but tricky to repair and can discolour. Plus, plastic has around half the lifespan of well-maintained wood or metal. Prices start at around £250 per window.