Jeff R.
12/9/2025
Omar Nevarez did a great, thorough job inspecting & cleaning my Trane furnace today. He was quick, efficient and pleasant to deal with.
McNally's Heating and Cooling
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(85)
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3491 Swenson Ave
Saint Charles, IL 60174
McNally's Heating and Cooling is a full service heating, ventilation, and air conditioning contractor located in St. Charles, Illinois. With over 20 years of experience, McNally’s Heating and Cooling prides itself on quality workmanship and customer satisfaction. Our services include the following:
-Air conditioning installs and repairs
-Furnace installs and repairs
-Boilers
-Humidifiers and air cleaners
-Residential and commercial
No matter how big or small your project may be, McNally’s Heating and Cooling is here to help you with all your heating and cooling needs. We are a Trane authorized factory dealer and guarantee our work. Contact us today for honest, upfront pricing!
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Reviews
4.5(85)
Bonnie H.
10/23/2025
My a/c kept on breaking when it reached past 80 degrees (which happened a lot in the summer). My unit was less than a year old. I had over 4 HVAC companies look at the issue. No one could figure...
Kalvin K.
6/29/2025
Order for new base Lennox condenser and coil w/install $6319. McNallys installed and unit is nonfunctional. Ice and water damage on unit and flooding within a day of install. Unable to send same...
Julia T.
11/18/2025
They were on time, but unfortunately the air ducts were a different type then they service. They made a recommendation and I believe they were very hones and tried to be helpful. Employee was...
Fred M.
8/21/2025
Couldn't be happier with McNally's! Russ is the best. Needed a new AC unit in the midst of a 90 degree stretch. Took care of us quickly and efficiently. Did an outstanding job. We got both...
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