St Charles HVAC


Our  HVAC technicians are skilled professionals that will respect your home and your time. From quick repairs to plumbing equipment and HVAC system replacement, Knights HVAC is the company that St Charles Il residents can count on for all of their home comfort needs.


Our heating & air conditioning techs have been repairing, servicing and installation HVAC systems in St Charles homes for decades. If you have an air conditioner or furnace breakdown, don’t panic, give Knights a call! We have St Charles residents covered with 24 hour emergency heating & air conditioning service. Our techs are skilled, fully trained, and have the ability repair all makes and models of air conditioners, furnaces, boilers, and residential HVAC systems.

Need a furnace or air conditioner tune-up? Give us a call! We also offer comprehensive maintenance agreements to our customers. Having your HVAC system put on a yearly schedule saves time and money. Regular maintenance will pay for itself in lower repair costs and more efficient operation.

Looking for a new furnace, air conditioning or HVAC system? We have you covered! We are your local Lennox Premier Dealer and offer a wide selection of quality HVAC equipment including: furnaces, heat pumps, air conditioning, ductless mini-splits, hybrid heat systems, hydronic boilers, thermostats and more.

Level Up The Comfort Of Your Home With Knights HVAC In St Charles, Il And Surrounding Areas

HVAC contractors in St Charles, Il don’t seem to provide the same quality work as they did in the past. Knights HVAC is one of the few contractors that put the required effort and time in order to ensure that our service exceeds your expectations.

Finding a contractor that you can trust can be frustrating. We believe that we have the experience and certifications to help you whatever the case may be.

Knights HVAC provides heater and air conditioning repair, service, installation and services in St Charles and surrounding areas. Check out what some of our customers are saying about Knights HVAC Heating and Air Conditioning services.


St. Charles is a city in DuPage and Kane counties in the U.S. state of Illinois. It lies roughly 40 miles west of Chicago on Illinois Route 64. As of the 2010 census the population was 32,974, and as of 2019 the population had decreased to an estimated 32,887

Originally named Charleston, it was later discovered that another Illinois city had the same name. Steven S. Jones, a local lawyer, suggested it be renamed Saint Charles in 1839.

St. Charles is a place where rich history meets exciting opportunity. Featuring charming neighborhoods, historic buildings, and shaded parks on the banks of the scenic Fox River, St. Charles makes for the perfect convenient getaway spot, an urban oasis far removed from the hustle and bustle of City life. Although St. Charles has a small-town feel, they pride themselves on big-time attractions.



St Charles Heating and Air Conditioning Contractor

St Charles HVAC

St Charles, IL
Phone: 800-577-6364