Ultimately this is to ensure your house is safe and your building insurance is covered for worst case scenarios. All checks are to ensure there is no danger to any person or livestock, as these things aren't always obvious to the untrained eye.

If you aren’t aware of a certificate or have moved house recently, it is likely to be out of date and therefore would not cover you if a fault was to happen, and a cost you pay out in your buildings insurance.

Contact AFK, as it's always a good idea to get these things checked.