I called Trevor originally for a consultation on what to do with some trees and plants that were in the yard of the house we had just purchased. We were impressed enough with his knowledge and demeanour that he was the first person we called when we decided to remove a hedge and a number of plants/trees from the yard.
At the first consultation, he gave us some excellent no-nonsense advice about the state of our hedge and what to do with it, as well as some good advice about whether or not we should move (or discard) a small tree on the property. His visit involved a mini-lesson on the flora of the neighbourhood as well as advice on what to do if we were looking to re-plant - what to look for, what is native to the area, and what won't do well in our climate and soil.
At the followup visit, Trevor removed a large hedge, a tree, and a number of plants. He completed the work quickly and effectively and left our yard clean - he even left some clippings aside for us that he said were ready to bud (and they did!).
Trevor is a great resource as an arborist as well and he will be the first person I call when I need planting advice or need anything else removed.