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Thumb Cooling and Heating

Thumb Cooling and Heating was founded by Ron Mausolf in 1979 and services Cass City, MI and surrounding areas. Initially being known for refrigeration work, they have since expanded to all parts of the HVAC system industry. They now have services available for heating, ventilation, air conditioning units, refrigeration fields and standby generators. Thumb Cooling and Heating is a fully licensed, bonded and insured company.

Thumb Cooling and Heating not only provides first-rate HVAC (Heating, Ventilating, Air Conditioning) services, but they only provide the best quality parts and systems like industry-leading Trane systems. Trane air conditioners, furnaces and heat pumps are some of the most efficient and reliable in the market.

Thumb Heating and Cooling can help cover your small business or home. The in-depth services Thumb provides for your residential home are residential heating and air conditioning, residential boilers, geothermal, radiant in-floor heating, hot water heaters, humidifiers, air purification systems, plumbing, electrical contract, outdoor wood and corn burners.

For your commercial business, Thumb Cooling and Heating specializes in industrial and commercial HVAC, supermarket setups, commercial and industrial refrigeration, restaurant and commercial kitchen design, plumbing, electrical contract, building automation and control. 



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Cass Ctiy, Michigan 48726


NATE Certified
24/7 Emergency Service