I bought my unit from Rucker Mechanical seventeen years ago. Mr. Rucker himself came out and presented all my options to me. Since then, they've been servicing my air conditioner and heater without fail. I like to pick a company that has been in business a long, long time and Rucker Mechanical has. I think it shows that they must be doing something right. It's also family-run which counts for a lot. I trust Rucker Mechanical. They are a great company to do business with. I depend on them to keep my furnace and air conditioner running well.