they are the best i called 3 different companys they could not fix my geothermal furnace and said it needed to replaced and it is only 5 years old and it would coast $12,000 and the guys at preferred heating & cooling in melvin mi. fixed it for under $500 and found the problem fast and did not guess at it and charge me for parts i did not need Thank you preferred heating & cooling!

I called this company at 3:00 am and they were they only ones who would come out and not charge me an arm and a leg. I would recommend them to everyone. Best company in Mich