History of our Heating and Cooling Company in Bloomington, Indiana

Joe Hamros started Commercial Service of Bloomington, Inc. in 1946 as a small 2-man furnace and air conditioning repair company. Through the 1950’s and 60’s the company continued as a small heating and cooling service company gaining a solid reputation for great service, excellent craftsmanship and innovative solutions. Commercial Service actually installed some of the first air conditioning systems in Bloomington, Indiana in the late 1950s.

In the very early 1970’s Jules Sonneborn, a seasoned manufacturing plant manager from New Bedford, MA, purchased Commercial Service a company that specialized in furnace and air conditioning reapir in Bloomington Indiana. Jules & his wife June were looking to move back to June’s  hometown, Unionville, IN. Jules immediately made some big changes and began aggressively recruiting new customers and increasing the company’s client base. Within a couple years the business’s growth and success grabbed the attention of Jules and June’s son, Mike Sonneborn.

Mike Sonneborn, a graduate of the University of Pittsburg with a degree in Economics, moved to Bloomington, Indiana with his wife Sherry in 1975. Mike, like his father, seized the opportunity to expand the organizations size and reputation for fast reliable furnace and air conditioning repair and sales. Mike developed relationships with organizations like General Electric, Cook Inc., Monroe County YMCA and the City of Bloomington. These relationships developed through the 1980’s and 1990’s and were the driving force for the company’s growth. By the late 1990’s Commercial Service had grown from the original 2-man service company to an organization that employed over 30 full time employees and had major commercial and residential Heating and Cooling projects throughout Bloomington and the state of Indiana.

By the early part of the new millennium, two key people joined the organization. Greg Humphrey, a CPA, took over as treasurer and Scott Rink joined as Vice President of Operations. With their help over the next 10 years the organization expanded to more than 50 full time employees providing the best furnace and air conditioning repair and sales.

In 2006 Commercial Service developed a highly specialized Residential Division dubbed The Residential Green Team. This team, mirroring the history of Commercial Service, quickly developed into the most respected Business and Home furnace and air conitioning repair and sales company featuring Heat Pumps, Geothermal Systems, High Efficiency Gas and Electric Furnaces in Bloomington, Indiana and the surrounding area.  Commercial Service has been named the regional leader in high efficiency heating and cooling by Trane Manufacturing Company for 3 years in a row and recently won the coveted “Pace Setter Award” for having installed more high efficiency furnace and air conditioning systems than anyone in the state.