Asbestos is a naturally occurring mineral that was once widely used in building materials due to its fire-resistant and insulating properties. However, it was later discovered that exposure to asbestos can cause serious health problems, including lung cancer and mesothelioma.

Because of the dangers associated with asbestos exposure, its use in building materials has been banned in the UK since 1999. However, buildings constructed before this time may still contain asbestos, which is why it's important to have your property tested.