AC, Heating, Water Heaters & More

Chicagoland's HVAC Experts are a Call Away

Get your new AC installation estimate

New AC Install
As low as $76/mo

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#1 Air Conditioning Services

Harmonic HVAC is your AC service and #1 repair, maintenance and installation specialist in Naperville and the surrounding counties. We've been helping residents with their HVAC and commercial HVAC for decades.

Our technicians offer AC, heat pump, and mini split repair and maintenance for all makes and models. We install new Armstrong and Mitsubishi systems.

The #1 Heating Service & Repair in Naperville

Winter's in the Naperville area can get cold! It's important to make sure your heating system is running smoothly for the upcoming cold weather.

The expert technicians at Harmonic HVAC can repair and perform tune ups on all heating system makes and models. We are a proud Armstrong Air Pro Team dealer here in Naperville, and install Armstrong Air heat pumps and air conditioners. We install Mitsubishi mini split heat pumps.

#1 HVAC & Other Services

Harmonic HVAC also provides Commercial HVAC, indoor air quality service, water heating and unit heater installation and service. If you need a new air filtration system installed, your commercial furnace checked or repaired, or a new unit heater installed in your shop we can help.

Tired of not being able to use your shop or garage over the winter time? A new unit heater will do just the trick, and keep your space warm and cozy so you can get more done year round.

Rock*Star Maintenance Plans

Our annual maintenance programs at Harmonic Heating & Air Conditioning provides better health and longevity for your home or commercial heating and cooling systems.


$179 Annually

Annual Only
Saves $68/yr on Annual Cleaning

Best Value

$29/mo or $348 Annually

$348 Annually
Includes Hot Water Heater & More


$44/mo or $528 Annually

$528 Annually
Includes Hot Water Heater & More

Heat Pumps & Mini-Splits

Save Today with Rebates & Tax Credits
Carrier Heat Pump

Central Heat Pumps

Central heat pumps provide year-round comfort by heating in the winter and cooling in the summer.

Mitsubishi Ductless Heat Pump

Ductless Mini-Splits

Ductless mini-splits provide true comfort control with precise zoning and ultra high-efficiency models.

Harmonic Heating & Air Conditioning Service Area

Proudly Providing
Service Near You

  • Aurora
  • Batavia
  • Montgomery
  • Naperville
  • Oswego
  • Plainfield
  • St. Charles
  • Yorkville

Air Conditioner Services

Specializing in residential air conditioning installation, Harmonic Heating & Air Conditioning is dedicated to keeping our customers in the Naperville and Plainfield region nice and cool.

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Ecobee Smart Thermostat

Web Exclusive

Take $50 OFF a new Ecobee 6 Premium Smart Thermostat

RGF Reme Halo LED

Air Quality
Web Exclusive

Take $50 OFF a new REME Halo LED or i-Wave Air Purifier

Ask about Seasonal Rebates

You may qualify for OVER $1,000 in Rebates!

Heating Services

Mitsubishi Electric brings unmatched energy efficiency, performance and control to home cooling and heating. It’s never been easier to keep your house comfortable, without spending a fortune on your energy bills.

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Our Installation Process

Our Installation Process

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