Need to know

Budget from around £600 per square metre – though costs vary depending on size and materials (see below). Not usually, unless you live in a flat, a listed building, a Conservation Area or other designated area.

Q What does it cost? Q Do I need planning permission? Q What materials are on offer?

TIMBER sliding doors are a good option for traditional properties, but do require maintenance.

COMPOSITES are a good alternative to timber doors, offering a wood-finish interior and a durable, weatherproof aluminium exterior.

METAL FRAMES, like aluminium, are durable, low-maintenance and strong, and offer a modern finish to most builds. They can come in a range of colours and are good for minimal sightlines.

UPVC is a good budget option if you’re looking to make a saving, but can look odd in older properties.