Heating & Air Conditioning
Repairs, Maintenance, and Installation



AC & Furnace Combo - Now As Low As $94 per Month

Summer Deals

Take advantage of lower prices while you can! Get a FREE ESTIMATE!
*When you using our FREE ESTIMATE tool, you can choose a FREE ACCESSORY for your installation.

Web Exclusive 1 - Take $100 OFF the purchase of a Aprilaire Dehumidifier (decrease humidity in the home to make it FEEL cooler.)

Web Exclusive 2 - Take $50 OFF the purchase of a "RGF RemeHalo" or "i-Wave" Air Cleaner (eliminate airborne pollen and other particulates to make your home healthier.)

Join the Rock Star Program Today

Take advantage of Our

3-month, 6-month or 12-month
Same-As-Cash Financing.

Several finance options available. Contact for details.


(For a limited time only.)






Join the Rock Star Program Today

Summer is here, get ready for A/C season today!


Are you asking yourself, what is the best A/C brand? Armstrong is, of course! Call today to learn more about our Armstrong Air Conditioner selection.


We can cover all your Spring / Summer HVAC services; A/C service, A/C installation, new Air Conditioners, Mitsubishi mini split installation and maintenance, as well as hot water heater service and installation for your home or commercial property!

Harmonic Heating & Air Conditioning is your local HVAC Contractor


Schedule Your Service

Local, Prompt, and Professional HVAC Services
Schedule Your Service Today




See What Our Customers Are Saying



     M . R from Plainfield, IL


"Shawn serviced our furnace. He explained everything he was doing and showed me the areas of concern. He was able to figure out the problem and cleaned the areas that needed it. He was honest and knowledgeable. Great service! Thanks! "

Furnace Repair

     R . M from Aurora, IL


"Harmonic has been providing us with preventative maintenance on our heating & air conditioning system as well as our water heater. Always professional and trustworthy. They helped nurse our systems until they were no longer reliable and we felt confident in giving them our business when replacing all 3 units. "

Rock Star Maintenance Program

     H . M from Naperville, IL


"Service was great. They were able to come and install the AC unit within a week of when I first called them. The technician was friendly and respectful of my house and pet. The unit was installed within three hours of their arrival and operates as expected. Highly recommended."

AC Installation




click below to learn more about the products we carry




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



Financing with SERVICE FINANCE Company is Available



0% No Payment for 6mo.



Several Finance Options are Available!



*Terms Apply & Subject to Credit Approval

Click below to apply for financing.

Apply for Financing


Why Choose one of our "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. With a modest investment starting at only $179 p/year (that's $89.50 Spring + $89.50 Fall), we'll help provide peace of mind while our great team will work hard to keep your home and office " Smarter, Healthier, and More Efficient". (That saves $68 on annual cleaning alone!) Give us a call at 630-999-9008 more information.



Book Now

Q: Cheapest way to get a clean & check tune-up?
A: The Rock Star program - Just $89.50 per visit

A/C & Furnace Repair Discounts, Annual Maintenance, & Savings on New A/C & Furnace Installations


Rock Star

$44/mo
$528 annually Includes Hot Water Heater & More

BEST VALUE

VIP

$29/mo
$348 annually Includes Hot Water Heater & More

General Admission

$179 annually only
saves $68/yr on annual cleaning


Learn More


See What Our Customers Are Saying


Harmonic Heating & Air Conditioningstarstarstarstarstar4.9 / 5

288 Total Reviews /files//harmonic-logo-footer.png630-999-9008$10S187 Schoger Dr Suite #55, Naperville IL



Harmonic Heating & Air Conditioning BBB Business Review


Naperville HVAC Professionals



Schedule a FREE Home Comfort Assessment





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




WHAT YOU CAN EXPECT

  • 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 Conditioningstarstarstarstarstar4.9 / 5

288 Total Reviews /files//harmonic-logo-footer.png630-999-9008$10S187 Schoger Dr Suite #55, Naperville IL





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