We had a mature ash tree in our backyard that was dying and after speaking with a number of arborists, decided on Advanced Tree Care and we couldn't be happier with the results.
They removed the dying tree, cleaned up all of the debris and replaced it with a 20 foot tall autumn blaze maple. We were worried about an existing gas line so they used an air blade to dig out the hole and even managed to prevent the soil from blowing around everywhere.
The guys did a great job of walking us through the entire process and left our backyard super clean. I'll definitely be using them again for any yearly pruning.