My neighbour's old tree fell over and damaged my fence. It was not
windy and the 30-foot tree's roots had obviously rotted and gone. How
should I proceed with getting my fence repaired?

1. Get my neighbour to fix it?
2. Claim on my buildings insurance. In this case should I get his
insurance details so my insurance company can recover costs from his
company? How do i recover my £100 excess? Will my premium increase as
a result of my claim?