When does asbestos become a problem?

Asbestos remains in many buildings, but is only a concern if it breaks up and becomes free such as during DIY work http://www.asbestosonline.co.uk/index.php?webpage=asbestos-surveys

Asbestos only banned in 1999

Asbestos was only finally banned in 1999 and it is present in almost half of all homes. It is only dangerous if damaged however, such as water damage to ceilings http://www.asbestosonline.co.uk/