Asbestos is a naturally occurring mineral that was historically used in the construction of buildings due to its fire-retardant and insulating properties. However, exposure to asbestos fibers can be extremely harmful to human health, leading to serious illnesses such as lung cancer and mesothelioma. In the UK, asbestos was banned for use in building materials in 1999, but buildings constructed before this time may still contain asbestos-based materials.

It's important to test for asbestos to ensure the safety of your building's occupants. If asbestos-containing materials are identified, it is essential that they are professionally removed to prevent any further exposure to harmful fibers.