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For northern Cook County, IL, Ultimate HVAC is your source for new construction and replacement Air Conditioning units. If you’re building a new home, or if your existing system is getting a bit older you should consider upgrading to a new efficient and reliable central air conditioner unit is a great choice for efficient summer comfort.
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With so many choices on the market today, weighing the options like brand, efficiency, and technology can be overwhelming! All major brands offer central air conditioning equipment that is much more efficient and are both quieter and more comfortable than anything previously available. At Ultimate HVAC we feature Armstrong and Mitsubishi AC systems either as an efficient replacement, or as a cooling system for your new home. Whether you’re looking for energy efficiency or comfort on a budget, we’ve got the solution that’s perfect for you.

Click the Armstrong Air and Ducane logos to learn more about the Air Conditioners we carry.

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Trust Ultimate HVAC With Your New AC System

For us, it's about doing things right the first time and doing things right! We make sure that your ductwork is clean, tight and properly sealed that your refrigeration piping is installed and insulated perfectly.

  • We have decades of experience designing and installing air conditioning systems in Skokie, Niles, Wilmette, Winnetka, Glenview and the surrounding area.

  • Our AC technicians are NATE certified: Nate Certified cooling specialists. NATE offers up to date heating & air conditioning training and certification means we have the local training and experience to provide top-flight air conditioning installations and service.

  • We will size your system properly. An improperly sized air conditioning system is the number one reason for dissatisfaction with an AC system. If it’s too small, you won’t be comfortable on those hottest days of of our Chicago summers. But bigger isn't always better. If the system is too big, you’re spending money on equipment you don’t need, and your system will not effectively remove moisture from the air which is critical for indoor comfort.

  • We’ve built our locally owned business on referrals from satisfied clients, and are proud to uphold a commitment to superior installation and service.

Armstrong Single Stage Models

At Ultimate HVAC we feature central air conditioning systems from Armstrong.

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We offer full residential and commercial service to your heating and cooling systems. If your AC system has failed, we offer professional emergency repairs.

To take the worry out of your heating & cooling system, we offer fixed air conditioning Maintenance Agreements. With it we will ensure that your AC system is properly serviced every summer.

Particularly if you don’t have a duct system, or if you have special needs for system zoning, a great option for northern metro Chicago homeowners is Mitsubishi mini-split AC systems. Click here for more information.

Interior Design



Ultimate HVAC is local owned and has decades of experience providing water heater installation and service for Skokie area homeowners and businesses.

 Guarantee Peace of Mind

Ultimate HVAC is committed to your needs and satisfaction regarding water heating, HVAC or indoor air quality.

 Factory Trained

We have completed manufacturer training and are Navien® and A. O. Smith dealers.

We've been an Accredited Better Business Bureau member since 2017, and we are more than proud of our A+ BBB rating!

Nate Certified heating and cooling contractor.

Ultimate HVAC is EPA refrigeration and air conditioning certified.

Ultimate HVAC is licensed and insured to do furnace, boiler, air conditioning, and water heating work throughout Cook County.

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