See What Our Customers Are Saying
Harmonic Heating & Air Conditioning is your local comfort expert! Read our customer's reviews! Call us today.
EARN $25
when you refer friends and family
$25 Target, Home Depot, or Small Cakes gift cards are available to customers who refer us to their friends and family, and we show a paid invoice for that NEW referred customer. Just print the referral card, place your name on the card, and have your friend hand it to our Technicians at the time of payment. It's that easy.
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"Excellent work by Brandon and his team as well as followup from Liz in the office involving our furnace install. Everyone from Harmonic is friendly, professional, and expert in what they do. Very happy with all aspects of the work."
K . J from Naperville, IL on October 21st, 2021
K . J from Naperville, IL on October 21st, 2021
( / 5)
"Thanks Keith. We're happy to help. Remember that you can save even more money with one of our "Rock*Star Maintenance Plans" and save money every year on Furnace & A/C annual maintenance, repair service calls, and even Furnace & A/C replacement. Stay warm!"
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Professional
Knowledgeable
Pleasant"
M . K from Oswego, IL on October 21st, 2021
M . K from Oswego, IL on October 21st, 2021
( / 5)
"Thanks MaryAnn. Protect your HVAC system with one of our "Rock*Star Maintenance Plans" and save money every year on Furnace & A/C annual maintenance. Help friends and family save money too, refer them to Harmonic so they can save on Furnace & A/C repair service calls, and even Furnace & A/C replacement when that time comes. Enjoy the season. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Sean was great! Awesome service start to finish!"
S . B from Oswego, IL on September 28th, 2021
S . B from Oswego, IL on September 28th, 2021
( / 5)
"Thanks for the great review Sarah. Glad we could help you with your Furnace & AC Maintenance and Repair Services. Remember to SAVE more cash by joining our RockStar Furnace & AC Maintenance Plan. Save on annual maintenance, as well as replacement when needed. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Great customer service, great products. From beginning to end, purchase and install went smoothly. This team made sure all my questions were answered, even the ones I didn't know to ask. Definitely consider this company for your HVAC needs. Thank you!"
K . J from Aurora, IL on September 12th, 2021
K . J from Aurora, IL on September 12th, 2021
( / 5)
"Thanks for the great review Kimberly. Glad we could help with your new HVAC system. Remember to SAVE more cash by joining our RockStar Furnace & AC Maintenance Plan to keep your system healthy for years to come. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"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."
H . M from Naperville, IL on September 6th, 2021
H . M from Naperville, IL on September 6th, 2021
( / 5)
"Thanks for the 5-star review Hugo. Glad we could help with your new Air Conditioner. Remember to SAVE more cash by joining our RockStar Furnace & AC Maintenance Plan to keep your HVAC system healthy for years to come."
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"I would recommend Harmonic to anyone needing HVAC work or a water heater. They did both for me and always professional, prompt, friendly and honest."
A . L from Naperville, IL on August 19th, 2021
A . L from Naperville, IL on August 19th, 2021
( / 5)
"Thanks Andy. We love what we do. Always glad to help with some of the most important systems in a family's home. The heating and air conditioning as well as the hot water heater are the key components to keeping us COMFORTABLE through the year. We always joke that our job is to keep people COOL in the summer, and WARM in the winter. We hate cold showers too. So we're glad to meet your expectations. Remember to protect your equipment with one of our 3 Rock*Star Furnace & AC Maintenance Plans to keep your HVAC equipment healthy all year. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Highly recommend Harmonic Heating & Air Conditioning for your Heating & Cooling needs. They installed a new HVAC system for our home and we have been very satisfied with the quality of their work and we have been customers for a few years as they do all our yearly maintenance and we plan to keep doing business for them.
~ Ron L. Naperville"
R . L from Naperville, IL on August 8th, 2021
R . L from Naperville, IL on August 8th, 2021
( / 5)
"Thanks for the great 5-star review Ron. We really appreciate it. More than ever, potential new customers are using customer reviews to make their purchasing decisions, so we're glad that we can continue to meet your expectations. Thanks for choosing us for your new Furnace & AC installation, as well as your continued Furnace & AC annual maintenance. Enjoy the season, and "Stay Cool". "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Air conditioner went out on a 90+ day. They came same day I called. Very prompt, very polite. Found the problem right away, fixed it quickly. Very pleased with the experience, the cool air and the cost. "
M . E from Naperville, IL on August 4th, 2021
M . E from Naperville, IL on August 4th, 2021
( / 5)
"Great to hear Mary. Love to help. Remember to join our Rock*Star AC & Furnace Maintenance Plan to help save more money with AC Repair Service & AC Maintenance. You can even save money on your new AC & Furnace Replacement, when that time comes. Thanks for the great review. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Can not say enough how superb the customer service is! Just amazing. Nice friendly prompt efficient caring I could on. Liz, Sean, Daniel super people. Thank you Harmonic. I appreciate all you do!!! See you next time."
M . G from Aurora, IL on July 29th, 2021
M . G from Aurora, IL on July 29th, 2021
( / 5)
"Great. Thanks for the great review MariEllen. We appreciate it. Remember to protect your HVAC equipment with our Rock*Star Maintenance Plan to save big bucks on Furnace & AC Maintenance, Furnace & AC Repair Services, as well as Furnace & AC Replacement when needed. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Great customer and technical service. Diagnosed and fixed issue which is what really counts. Pricey but inline with competition. "
G . B from Naperville, IL on July 23rd, 2021
G . B from Naperville, IL on July 23rd, 2021
( / 5)
"Thanks Guy. The entire industry is experiencing an unprecedented price increase across the board on materials and cost of goods. So all of our expenses have increased significantly. Some expenses are up 20%, from gas in the trucks to the metal, repair parts, refrigerant, pvc, so on and so on. We hope to see prices stabilize soon, but until then, we're trying to help our customers SAVE as much money as possible on their HVAC service, repairs, maintenance, and even Furnace or AC replacement. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning