I've had good luck (for 8 years) with All Temp Heating and Air Conditioning at 124 E. Liberty in Wauconda - they just installed a new furnace and it's efficient and quiet!!
Michael S. replied:
Greg at Sunset Mechanical in Genoa City!!! GREAT over the last 9 years here!!
Cheryl R. replied:
Been really happy with Robinson heating and air for many years-- replaced two furnaces thru them and no issues:)