Take advantage of our great SEASONAL SPECIALS!

Receive a FREE Ecobee Thermostat

with the installation of any Furnace and AC Combo until March 1, 2021

- OR -

Explore Financing

We know that cash is tight, So Harmonic offers several finance options.

Think of it as your own HARMONIC HOME STIMULUS package.



Armstrong Air Pro Team - Your local furnace and air conditioner experts.

New A/C Installed for as low as $45/mo

New Years Season Specials

New Furnace
Installed for as Low as:

Up to 1700 sqft for $74/mo
70k btu Furnace

Up to 2200 sqft for $80/mo
90k btu Furnace

Up to 2700 sqft for $81/mo
110k btu Furnace

Up to 3200 sqft for $83/mo
135k btu Furnace

Sale Ends September 30th, 2020

A/C & Furnace Combo
Installed for as Low as:

Up to 1700 sqft for $82/mo
2.5 Ton A/C w/ 70k btu Furnace

Up to 2200 sqft for $86/mo
3.0 Ton A/C w/ 90k btu Furnace

Up to 2700 sqft for $98/mo
4.0 Ton A/C w/ 110k btu Furnace

Up to 3200 sqft for $106/mo
5.0 Ton A/C w/ 135k btu Furnace

Sale Ends December 31th, 2020. Cash discounts are available

Schedule Your Installation
Exclusive 12 Year Parts and Labor Warranty

Customize Your Comfort

Exclusive 12 Year Parts & Labor Warranty

1st Year Maintenance Free when you purchase a Furnace or A/C from Harmonic

NO-LEMON Policy to protext your equipment for the first 10 Years!

Book Your Install

Harmonic Heating & Air Conditioning is a Proud member of the local Chamber of Commerce in Naperville, IL and Oswego, IL

Naperville Chamber of Commerce
Oswego Chamber of Commerce



We Customize Your Comfort - Making your home Smarter, Healthier, and more Efficient.
services we offer


Full
Service

Residential HVAC Services

Heating
Services

Book Heating Service

A/C
Services

A/C Repair is A Call Away

Air Quality
Services

Enjoy Healthy Air



Our Current Specials

Install a new BASIC A/C & Furnace System COMBO

for only $81-$106/Mo

Install a GOLD High-Efficient A/C & Furnace System COMBO

for only $118-$155/Mo

Take $25 OFF

Any regular priced service, or product installation. (Not valid with any other offers or coupons. Limited time offer.)

Book Now!

Install a new BASIC Hot Water Heater

for LESS THAN $14/Mo

Install a new High-Efficient Hot Water Heater

for LESS THAN $25/Mo

Install a "Energy Star Rated" TANKLESS Hot Water Heater

(Sized for 3 bathroom home) for LESS THAN $70/Mo

Book Now!

Schedule a FREE Home Comfort Assessment


Call 630-999-9008 Schedule Service Today

Join Our Rock*Star Maintenance Program



Thanks for your Love "Friends". You've helped Harmonic win an award.

Harmonic Heating & Air Conditioning are proud winner of the People Love Us On Yelp Award!


We take great pride in serving our friends and family in the Aurora, Oswego, Naperville and surrounding areas. We believe that we install the best furnace and air conditioning equipment available, and provide the greatest value to our customers.

Take $25 Off any service or product installation.


Aprilaire air quality systems



Our team is on time or early - Guaranteed

THE "AT YOUR DOOR" GUARANTEE

Don’t Waste Your Day Waiting For A Four Hour “Window”. Schedule Your Guaranteed Appointment Online.

If We Aren’t On Time Or Early, We’ll Give You A $25 Amazon Gift Card.

One Of The Little Things That Make A BIG Difference At Harmonic Heating & Air Conditioning.

schedule service

click below to learn more about the products we carry

Armstrong Furnaces are incredibly reliable heating systems!


Armstrong Air A/C are incredibly reliable cooling systems!


Mitsubishi Mini Splits are incredibly efficient heating and cooling systems!




Flat Rate Pricing Guarantee

Learn More


Get Your Free Estimate Today

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