Ask your swimming pool fencing contractor to see samples of his/her work before you assign the job of constructing your swimming pool fence.
Ask for references, photos and if possible, an opportunity to see some of the company's most recent work in person.
Interview at least three different swimming pool fence contractors and gauge which one you are most comfortable with. Whose work were you most impressed with? Where did you get the best estimate, and who has the best presentation in general? These questions and your research will be beneficial in finding the right contractor to construct a safe barrier for your pool.