Welcome to Diedrick’s Heating and Air Conditioning

Diedrick’s Heating & Air Conditioning Inc. is a family owned business that was established in 1997 by Brian Diedrick. Located in Seymour, WI we service the following surrounding communities; Black Creek, Oneida, Hobart, Howard, Ashwaubenon and Green Bay, WI. Diedrick’s is an independent Lennox Dealer, offering the best selling Lennox brand Furnaces and Air Conditioners for both residential and light commercial establishments. We take pride in our work and are committed to providing you the best customer service. We are dedicated to making your experience with us an enjoyable one and to bring you total comfort and satisfaction.