Offering the HARMONIC HOME STIMULUS package!

We know that cash is tight. So for a LIMITED TIME, Harmonic is providing

6 MONTHS, No Payment, No Interest financing on any invoice over $1,000.

Yes, NO INTEREST & NO PAYMENTS for 6 months (subject to qualification) on any Furnace and A/C purchase.

- OR -

Take advantage of our GREAT FINANCING options.

Explore Financing

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

End of Summer Sales

New A/C
Installed for as Low as:

2.5 Ton A/C for $45/mo

3.0 Ton A/C for $48/mo

3.5 Ton A/C for $52/mo

4.0 Ton A/C for $58/mo

5.0 Ton A/C for $65/mo

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 September 30th, 2020. Cash discounts are available

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!

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

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

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.

Our team is on time or early - Guaranteed


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.

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Flat Rate Pricing Guarantee

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Get Your Free Estimate Today

Get Started

Harmonic Heating & Air Conditioningstarstarstarstarstar5.0 / 5

203 Total Reviews /files//harmonic-logo-footer.png630-999-9008$10S187 Schoger Dr Suite #54, Naperville IL

Financing with SERVICE FINANCE Company is Available

Click the buttons below to apply for financing.

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  • We listen when you call and make an appointment.
  • We arrive on time.
  • We provide up front pricing so that you are never surprised.
  • We carry out all transactions with honesty and integrity.
  • We guarantee all our work and stand behind all warranties.
  • We happily address any needs you have to make your home or business comfortable.

We are now a certified Armstrong Air Comfort Team

Harmonic Heating & Air Conditioningstarstarstarstarstar5.0 / 5

203 Total Reviews /files//harmonic-logo-footer.png630-999-9008$10S187 Schoger Dr Suite #54, Naperville IL

Harmonic provides expert heating, a/c and air quality system services in Aurora, Naperville, Montgomery, Oswego, Wheaton & More!