Visual inspection of the roof takes place subject to access being made available by the owner/occupier. Pole cameras can also be used in harder to reach areas, particularly for elements such as guttering or the chimney stack. The report should discuss:
You can use the report to substantiate a claim, which your solicitor should make against their professional indemnity cover if they are at fault, and use an expert witness service to elaborate on any findings or questions raised by the other side.