Furnace maintenance in Vernon hills Illinois. We installed this furnace two years ago. The customer enrolled in our maintenance plan and we have serviced it every fall since. Having said that the unit looks brand new. A common mistake homeowners make is the install a new furnace and forget about it. Next thing you know 5yrs have gone by and the unit has multiple issues due to lack of maintenance. Moral of the story all heating and cooling equipment should be service every year for best performance
