Think about the last time you applied for a job. In fact, every time you have ever applied for a job the common thing about the application process... The references section. When you offer your services to a prospective employer they are going to want to talk with people that have worked with you in the past. Why would you not do the same with a prospective HVAC dealer? After confirming they are licensed and insured, be sure to ask for some references. A reputable dealer should have no issue with providing you with names of satisfied customers. Possibly even that live in your neighborhood. Quality and dependability should be at the top of any referral high marks. The HVAC industry has many dealers... some good and some otherwise. Make sure you take the extra time to search out the best dealer available.