*Welcome to Christensen Heating & A/C Inc., a Family Business Serving Your Family?s Heating and Air Conditioning Needs in the Fox Valley Since 1921 *Many Years Have Passed in the Four Generations of Christensens that Have Run Our Heating Business, but the Quality Workmanship of Our Dedicated Employees Has Remained Consistent Throughout *We are Proud to Be a Member of the Lennox Family Since...