Voted the Best Heating and Air Conditioning Company in Kane County

McNally’s Heating and Cooling has over 25 years experience serving St. Charles IL and the surrounding community. We are the repair, installation and maintenance partner of choice for Kane County residents and we’re available 24/7 to service the HVAC needs of our customers. 

We are a Family Owned & Operated HVAC Company serving St. Charles and the Surrounding Area

For HVAC St Charles, there is no better company to call than McNally’s Heating and Cooling. We are an award winning provider serving the heating, air conditioning, maintenance, installation, repair, air purifying and emergency needs of our communities. We are committed to exceeding the expectations of our customers and are happy to be the go-to resource for HVAC and HVAC repair St Charles.

CURRENT PROMOTIONS

Why McNally’s?


Heating

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

Air Conditioning

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.

Installation

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.

Air Purifying

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, dehumidifer maintenance, duct cleaning and sanitization, humidifer maintenance and more.

Maintenance

Save money and get quality service with the McNally's Pot of Gold Maintenance Agreement. Our maintenance customers get complete heating and cooling season tune-ups, discounts on parts, priority scheduling and exclusive warranty options on equipment.

Emergency

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.

Residential Heating and Cooling Services

McNally’s Heating and Cooling St Charles is a three time winner of the Angie’s list Super Service Award for our commitment to serving the needs of our customers. We were also voted 2021, 2022 & 2023 Best of the Fox for Heating and A/C Companies in Kane County.

Be it air conditioning repair, furnaces or even duct cleaning, our customers know that McNally’s means quality.

EMERGENCY SERVICE AVAILABLE 24/7

Day or Night, McNally's Heating and Cooling is Ready to Help!

There’s never a good time for an HVAC emergency. Whether it’s your furnace, air conditioning or anything else HVAC related, we always have emergency service technicians standing by and ready to help.