Sometimes, depending on the circumstances. If it is safe for our personnel to rescue the cat, we will. Please understand that our response to your request will not be with red lights and sirens and may be delayed, if our personnel are needed for another, higher priority event.
Cats are generally up in the tree because they were threatened. Once this circumstance changes, they usually come down on their own. You might try coaxing them down by opening a can of tuna and waiting for the cat to get down on its own.
If the cat is on a power pole, we will respond to evaluate the situation. We may determine that it is a better course of action to call the power company to safely retrieve the cat.