Just had a thought.

If you are buying a house, you have a survey. But not on the
roof/chimney stack?

That's likely to be the most costly thing to repair.

It occurs to me that if I buy a drone with a video camera, not that much
money, I could do a video survey of the roof/chimney stack for not too
much. Easy money & I get to play with a drone!

Not done much research, just an idea. Any thoughts?

--
Dave - The Medway Handyman