Write the next sentence in the following story.

How to hire a tree trimmer
Call local tree trimmers listed in the phone book or found online.
Set up appointments with them to get price estimates for your job and ask for references to their previous work.
Talk to these past clients and ask if you can see what kind of tree maintenance they received.
Find out their impressions of the service you are considering. Ask your family, friends, and neighbors which tree-trimming service they use or can recommend to you.