Bingo.
Muse, you need clearance pruning along your house and roof. So hire someone good and get it done...you have neither the equipment nor expertise, and there are power lines involved.
OK, well, I'll add some info. I may indeed lack the required expertise and equipment to do the job right. But I do have some experience and tools. Also, the lines you see there... Well, the power comes in at the front left and at that point goes right down to the boxes at the side of the building at the front, so the trees don't impact the power. I say "boxes" (plural) because when I moved in here it was officially a two unit structure. During WW II there was a scarcity of housing and the unit was converted to two units, a "lower" and an "upper" unit. After I bought the house and kicked out my house mates, I went through the process of making the house officially a single family dwelling, applying with the city planning department and going through the whole complicated process, including getting signed approval from a host of neighbors (including everyone then living in that apartment building!). However, the power company (PG&E) still "thinks" it's a two unit structure and the two boxes remain on the outside. I can have that changed, either by me or an electrician.
I do have (as I said above) a pole saw, also some ladders. The lines that do pass through the trees, those were active until a few days ago when my telephone/DSL was made moot by virtue of gigabit fiber internet and phones that come in near where the power line comes in (front left), and then passes under the house through the crawl space, then out and up to a 2nd story room where I have my router, etc.
But the fact is, I don't think I'm in a position to trim those trees properly by myself. Maybe some of them, as I've been intending, or at least contemplating. All along I've thought I should talk to some full time tree trimmers/removers and at some point converse with the apartment building owner.
- - - -
"Madness is rare in individuals - but in groups, parties, nations, and ages it is the rule." - Friedrich Nietzsche