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