ANDY SOBKOWIAK
Sales and Service Manager 

Andy grew up and now lives in Holmen with his wife Kim and their three children. After graduating from Holmen High School, Andy spent the summer working at Ziegler Heating and Refrigeration. He went to WWTC for HVAC while working part time for Duane and then became full time upon completion of his program. He has been with Ziegler Heating for over 20 years now. When asked about Andy, Duane said, "His motivation and willingness to take on new challenges have made him a great asset to the company".

RON STOKKE
Installation Supervisor

Ron and his wife Kelly have one child and live in Holmen. Ron graduated from Holmen High School and used to like to help his dad, who was a furnace installer. He has now been working with Duane at Ziegler Heating and refrigeration for 22 years. Duane credits Ron with helping expand Ziegler's business into new construction.

All Ziegler installation/service technicians have over 10 years experience each!