When you are looking for a Zionsville AC contractor, the first questions you should ask are regarding contractor certification, qualifications, and insurance. These are basic necessities to ensure you will be hiring a legitimate company with employees that know what they're doing. You can also ask about their service guarantees, product guarantees, and maintenance costs. One of the most important factors in hiring a certain Zionsville AC repair company is whether or not their contractors get paid commission on the products they sell. If a contractor is being paid on commission they will have much more of an incentive to sell you a new expensive air conditioning unit instead of simply fixing a small inexpensive problem with your current air conditioner.