On 12/02/2021 16:38, Theo wrote:
....
A big chunk of the cost is likely to be access (scaffolding, cherry
picker?). Work out how you're going to do that first of all.

With scaffolding being on a daily rate, it may be cheaper to get a pro who
can do it quickly, rather than learning as you go with the meter running.

Scaffolding costs are primarily in the erection and dismantling. When I
last had some done, it was priced per month and the cost of keeping it
up longer, had I needed it, would have been minimal. Indeed, the main
problem seems to be in getting them to come to take it down if they
don't have another job they need it on.

--
Colin Bignell