None of the big service names had any interest in repairing my older equipment, they just pushed expensive new replacements. I wasn't ready to upgrade, and fortunately my neighbor recommended that I call Greer. They kept my aging units going until there was more rust than metal, and finally I gave in and had them put in fancy new units at a fair price. I am very happy with the result and as claimed, they work better and use less electricity. Today my installation team came back out for our spring tune-up and it was like a reunion of old friends. I genuinely like these guys and if you enjoy doing business with competent, honest local folks who care, you will too.