Chapman’s Mechanical Systems Inc., are the people to call for all your heating, air conditioning, refrigeration and plumbing needs. We are a family-owned, full-service HVAC contractor serving the people and businesses of LaSalle County, IL. since 1976. Providing our residential and commercial customers with the highest quality, HVAC equipment, installation, maintenance, and repair service available. As an Amana and Lennox dealer, we offer a complete selection of top quality high-efficiency systems to keep you comfortable year-round, lower your utility costs and contribute to a cleaner global environment. We have everything you need to make your home or business comfortable: furnace, air conditioner, duct work, refrigeration, plumbing, and more. With Chapman’s, you get dependable, union HVAC technicians who are knowledgeable, highly trained professionals, essential in preventing unnecessary delays, excessive service costs and keeping your systems functioning at peak performance.