About us

On June 1, 1992, Koesterer Heating and Cooling became a reality through the vision of John Koesterer. John had been in the industry his entire professional career, and developed a business plan to start his own company. His goal was to provide industry-leading products and service to residential and commercial customers throughout the St. Louis metro east.
Koesterer Heating And Cooling has partnered with one of the industry's most respected lines of equipment, American Standard. -The nation's leading consumer magazine has looked at products within the heating and air conditioning industry seven times in the history of it's printing, and in each of these re-views, consumers have rated American Standard #1. No other brand can say that! -American Standard brand is known for being #1 in reliability and innovation, delivering the highest level of comfort to homeowners.