“We have used Doornbos for 23 years for our home and 21 more years for our condominium, both of which are in Palos Heights. We always have the expert Doornbos Technicians service our furnace in the fall and our central air conditioner in the spring. For the past nine years, we have used Mike from Doornbos for our annual furnace and air conditioner service. He always does an Outstanding job in examining and diagnosing my furnace and air conditioner. He makes sure they are in excellent operating condition for the season. He expertly diagnoses any problems, and discusses them with me along with any corrective actions to make sure my system is in excellent condition for me to be comfortable for the coldest winter and hottest summer.”

– John F.

– John F.