Planned repairs life cycle

Here's a list of the life cycle of items in our homes, and an idea of when we replace them.

Component Life cycle (years)
Windows 30
Doors 30
Kitchens 20
Bathrooms 30
Shower rooms 20
Boilers 15
Radiators 30
Rewiring 40
Night storage heaters 20
Rain water goods 30
Roof 60
External painting 6