AC, Heating, Water Heaters & More

Crystal Lake's HVAC Experts are a Call Away

Get your new AC installation estimate

New Furnace Install
As low as $76/mo

Contact Us
Call Harmonic HVAC for your services.
Call Harmonic HVAC for your services.

Humidifiers are a way to create a "Smarter, Healthier, more Efficient" home by Harmonic.

Customize your Home with Harmonic HVAC & Official Heating and Cooling.

Call Harmonic HVAC for your services.

Rock*Star Maintenance Plans

Our annual maintenance programs at Official Heating & Cooling 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 & Garage Heaters

Save Today with Rebates & Tax Credits
Armstrong Air Heat Pump

Armstrong Air
Central Heat Pumps

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

Why Change from AC to Heap Pump?
Mitsubishi Ductless Heat Pump

Ductless Mini-Splits

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

Armstrong Air Heat Pump

Garage Heaters

Reznor garage heaters make it so you can utilize your workshop or garage space all year long.

Official Heating & Cooling Service Area

Proudly Providing
Service Near You

Cook   DuPage   Kane   Lake   McHenry

Air Conditioner Services

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

Book AC Services


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.

Book Heating Services

Our Installation Process

Our Installation Process

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