Reliable heating & cooling services for when it counts

Free Estimate

COVERING THE FOX VALLEY & SURROUNDING AREA

Why McNally’s?

  • Honest, upfront, competitive pricing
  • 10-year limited labor warranty on installs, 2-year limited warranty on repairs
  • All work thoroughly tested
  • Professional, punctual and courteous service techs
Learn More About Us

Reliable heating & cooling services for when it counts

COVERING THE FOX VALLEY & SURROUNDING AREA

Why McNally’s?

  • Honest, upfront, competitive pricing
  • 10-year limited labor warranty on installs, 2-year limited warranty on repairs
  • All work thoroughly tested
  • Professional, punctual and courteous service techs
Learn More About Us

No job is too big or too small

HVAC and Ductwork
Residential and Commercial

New Construction
Residential and Light Commercial Installation

Air Filtration
Installation and Purification

Furnace, Boiler, Air Conditioning
Installation, Repair, Replacement, Retrofit

We represent the finest HVAC manufacturers in the industry, bringing you the best in technology, efficiency and reliability.

Don’t just take our word for it…

It only took Brian one day to do the work. He explained to me what he was doing along the way and was happy to answer my questions. He arrived on time and took care to protect my white carpet.

Cindy – Geneva

I can’t say enough good things about McNally’s. I called them to get a quote for a new HVAC system for my house and they offered to come out that same day if I wanted.

After I received the quote (which was lower than the big box stores) I had several questions. I could e-mail them at 10PM and would get a reply within 15 minutes. They took the time to answer all my questions and were very flexible with my requests.

When the system was installed, they stayed until 7PM on a Friday night to get the job done. Even though they were working late, they took the time to make sure everything was installed neatly.

After the system was installed we found a manufacturing defect in one of the components, and they were out the next morning to take care of it.

Everyone at McNally’s was wonderful to work with. Highly recommend!

Greg T. – St. Charles, IL