Ditter Cooling Heating and Electrical is one of the oldest HVAC companies serving the western Twin Cities suburbs. John Ditter began installing and servicing cooling and refrigeration systems in 1946 when he returned home from serving in World War II. Now, nearly 80 years later, Ditter continues to provide the highest level of customer satisfaction to our residential and commercial customers. We offer some of the most efficient heating and cooling systems available and we are experts at designing and servicing air quality systems. We are a locally-owned company and support many non-profit organizations like Heat Up Minnesota, ALS, Autism Minnesota and Hammer Homes.