Trees that lose their leaves in the fall (i.e., deciduous) are the most effective at reducing heating and cooling energy costs. When selectively placed around a house, they provide excellent protection from the summer sun but permit winter sunlight to reach and warm your house. The height, growth rate, branch spread, and shape are all factors to consider in choosing a tree.
Start by asking family and friends if they can recommend an agent. Compile a list of several agents and talk to each before choosing one. Look for an agent who listens well and understands your needs, and whose judgment you trust. The ideal agent knows the local area well and has resources and contacts to help you in your search. Overall, you want to choose an agent that makes you feel comfortable and can provide all the knowledge and services you need.