Voted Best HVAC Company in Kane County
For HVAC in St. Charles, there is no better company to call. We are an award-winning provider serving the heating, air conditioning, maintenance, installation, repair, air purifying and emergency needs of our communities, and we are committed to exceeding our customers' expectations every time.
Maintaining high air quality and proper heating in your home is important for the health of you and your family. We are available for all repair, installation and maintenance of furnaces and humidifiers. We also service duct work and are available for duct cleaning.
Save money and get quality service with the McNally's Pot of Gold Maintenance Plan. Our maintenance customers get complete heating and cooling season tune-ups, discounts on parts, priority scheduling and exclusive warranty options on equipment.
Chicago summers are HOT! Keep yourself and your family cool and reduce energy costs with efficiently running A/C. Air conditioning repair, installation and maintenance are all core services offered by our incredible McNally's team.
Keeping your indoor air free of bacteria, mold, dust and other particles is key to keeping your family breathing easy. We are available for air testing, dehumidifier maintenance, duct cleaning and sanitization, humidifier maintenance and more.
We are experienced in residential and commercial HVAC installations. Our work is always completed on time, with no unwelcome surprises. Installation services include air conditioning, furnaces, boilers, air purification and more.
24/7 Emergency HVAC Service. HVAC equipment failures can create extreme discomfort for you and your loved ones. We're here to help in your times of need with lightning fast service.
24 / 7 Help
McNally's Heating & Cooling covers every residential heating and cooling need in St. Charles, from furnace tune ups and air conditioning repairs to full system replacements. Our technicians arrive on time and explain your options in plain language.
We help you choose the right heating or cooling system for your home, then install it with care. Proper sizing and setup mean better comfort and lower operating costs.
When your furnace or air conditioner acts up, our technicians track down the cause and make a lasting fix, day or night.
Seasonal tune ups catch small problems before they become breakdowns. Regular care keeps your system running efficiently and extends the life of your equipment.
When repair no longer makes sense, we walk you through your replacement options and handle the changeover from start to finish. A new, properly installed system pays you back in comfort and efficiency.
Be it air conditioning repair, furnaces or even duct cleaning, our customers know that McNally’s means quality.
McNally's Heating & Cooling - St. Charles
3491 Swenson Ave
St. Charles, IL 60174
Open 24 Hrs
Schedule AppointmentYou’ll find our St. Charles office at 3491 Swenson Ave, near the Courtyard by Marriott Chicago St. Charles, the Hampton Inn & Suites Chicago/St. Charles, and the Holiday Inn Express & Suites Chicago West - St Charles, and just minutes from local favorites like St. Charles Place Steakhouse, Crazy Fox Bar and Grille, La Zaza Trattoria, Rookies Sports Bar, McNally’s Pub and Alley 64.
Emergency service available 24/7
HVAC emergencies never happen at a convenient time. Whether it's your air conditioner, furnace, or another system failure, our emergency technicians are always ready to respond.
Call (630) 363-9067Tell us what you need and our team will get back to you shortly, or call us any time, day or night, at 630-363-9067.
