Buildings insurance includes property owners liability cover for anyone who is injured on your property, but excludes injury which is a direct result of the renovation work itself.
Contractors carrying out building work must have their own public liability insurance to cover personal injury or damage to property as result of their work.
If the property is left unoccupied during the building work many insurers will not cover malicious damage because of the increased risk of vandalism. Many renovation insurance policies will also not provide cover for properties that are left unsecure, once the property has been made secure the insurance policy would apply.