We had a very old, very large White Oak tree next (too close) to the back of the house. A several years ago I noticed it had a hollow area at the base and there were carpenter ants in the tree. Eventually it was going to have to come down.
Way too big and too close to power lines to just drop it. It had to come down in pieces.
A good friend's son-in-law is a freelance "tree guy" I've seen him work and my friends assured me of his ability so we went at it.
He offered to take it down for $950, $550 of which was the bucket lift rental.
10 hours hard it on Saturday, part of the time in light rain and another 3 or so this morning. I gave him and extra $150.
36" at the cut. 42" front to back.
He hit some wire just at the end of his notch cut, no idea how old the tree was but I'd bet that wire was in there for bare minimum 75 years.
You can see the proximity to the house and power lines the big pile of firewood waiting to be split is only about 2/3 of what I have to put away.
We hooked chains on to it with my Kaiser for a little insurance to help make sure it fell the way we wanted it to.
Not sure how far up the rotten/hollow part goes but I'm hoping to get some lumber out of it with my Alaskan chainsaw mill.