Johnson Heating & Air Conditioning specializes in geothermal heating and cooling systems. We installed our first geothermal system in the early 1990’s and since then become one of the largest geothermal installers in Southern Minnesota and Northern Iowa. In the early 2000’s Johnson Heating & Air Conditioning partnered with GeoComfort Geothermal Systems and continue to install GeoComfort products. Johnson Heating & Air Conditioning has designed and installed some the most energy efficient geothermal systems and continue to lead the industry with innovative system designs. We have installed geothermal systems in existing homes, new construction homes, existing business’ and new business construction.