Looking for a "ballpark" cost to have a residential service line re-routed.

Situation is a 45 year old house with overhead line from pole at rear
corner of lot. The line angles across the yard at almost 45 deg angle to
corner of house. A tree has grown in the middle of the yard that we do
not want trim to the extent that would be called for because of the
line. Would rather move the line, possibly using the garage roof as
intermediate point. (Garage is free-standing in corner of back yard
opposite to the power pole.) Lot is 60 x 100, line is about 60' long now.

Any ideas what a typical local power co. in large metro area would
charge to do such a thing ??

Would rather not call the co., as they would probably be out cutting the
tree before I could hang up phone ;-(

TIA, Reed