text:  Dad, you never told me the story how grandpa started Johnson Heating, Cooling and Plumbing. Caroline, my dad grew up in central Indiana and learned the Midwestern value of honesty and hard work. Johnson Heating, Cooling and Plumbing started in Johnson County in 1968, and those same values of honesty and hard work became the very heart of the company. I learned the same work ethic from my dad, and it's been humbling to see the growth of Johnson Heating, Cooling and Plumbing, not only in Johnson County, but also in surrounding Indiana counties.