See What Our Customers Are Saying
Harmonic Heating & Air Conditioning is your local comfort expert! Read our customer's reviews! Call us today.
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$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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"Harmonic was wonderful! They were very fast, out to my house the same day I called as the house was freezing! The service was excellent and everyone very professional - I would highly recommend!"
L . L from , IL on December 20th, 2021
L . L from , IL on December 20th, 2021
( / 5)
"Love to hear it Liz. Remember to protect your HVAC equipment with 1 of 3 Rock*Star Maintenance Plans to insure that it gets it's annual cleaning, quality service and repairs, and even get DISCOUNTS on a new furnace or air conditioner when that time comes. You can also get discounts on the installation of IAQ products like Air Purification products, Humidifiers, Smart Thermostats, and many more. Stay Warm. Enjoy the season. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Excellent service from beginning to end, I would highly recommend to anyone needing a furnace or air conditioner!"
L . L from Naperville, IL on December 6th, 2021
L . L from Naperville, IL on December 6th, 2021
( / 5)
"That's great Liz. Glad we could help with your HVAC system. Make sure you tell your friends and family this holiday season about our "Rock*Star Furnace & AC Maintenance Plan". Its good to have a plan for annual Furnace & AC Cleaning or Furnace & AC Tune-Up each year to keep THEIR system reliable for decades to come."
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Had to finally replace an old furnace, from the beginning of the process and through to the installation I received nothing but courteous. friendly, and what I believe to be, an accurate assessment of the best direction to take after assessing the situation. Installers, Brandon and Donnie, arrived as scheduled, completed the job within the parameters I was told, and made sure all my questions were answered. I have depended on Harmonic for some time now and will continue to rely on them in the future."
D . S from Naperville, IL on November 18th, 2021
D . S from Naperville, IL on November 18th, 2021
( / 5)
"That's fantastic Don. Thanks for the great review. That's what we strive for every day with every customer. We want to answer all of your questions and help you make the best decision for your home Furnace & AC system. We want to provide great annual Furnace & AC cleaning service, be honest and proactive with any Furnace & AC repairs needed through the years, and finally, help you make the best decision when it's time to replace that Furnace & AC. So we're happy we met your expectations, and we look forward to serving you and your family into the future. Enjoy the season. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"great company , really delivers , good communication and follow thru , installed new furnace , great price and work , very pleased !"
D . J from Sugar Grove, IL on November 13th, 2021
D . J from Sugar Grove, IL on November 13th, 2021
( / 5)
"Thanks David. Glad we could help with your Furnace Replacement / Furnace Install. Make sure you protect your investment with our "Rock*Star Furnace & AC Maintenance Plan". Its good to have a plan for annual Furnace & AC Cleaning / Furnace & AC Tune-Up each year to keep it reliable for decades to come. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"Very thorough and quick service. Would highly recommend."
E . W from Bolingbrook, IL on November 4th, 2021
E . W from Bolingbrook, IL on November 4th, 2021
( / 5)
"Thanks for the great 5-Star HVAC review Erica. Tell your friends and family about our "Rock*Star" Furnace & A/C Maintenance Plans which provides discounted repair service and maintenance deals on their Furnace & A/C systems every year. With HVAC equipment getting more and more expensive, it will also save $250-$350 on a new Furnace or Air Conditioner purchase when that time comes. "
- Harmonic Heating & Air Conditioning
- Harmonic Heating & Air Conditioning
"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
"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