News & Advice


Harmonic is Expanding Our Service Area

Harmonic is expanding in 2019 to include more zip codes for Heating & Air Conditioning Service in Batavia, Geneva, St Charles and surrounding areas.

Harmonic is known for it's reputation in Naperville and Oswego, but did you know that we also service the North Aurora Town Hall and North Aurora Police Department?

Its true! We service several commercial accounts including large apartment buildings, condominiums, and retail spaces. Harmonic provides rooftop RTU service and maintenance contracts, in addition to commercial hydronic and boiler systems. But we love our residential customers.

Check out our reviews! We provide 5-Star heating and cooling services, including furnace repairs, annual furnace maintenance, and emergency furnace service. We also provide air conditioning repairs, annual ac maintenance, and emergency ac service in Geneva, Batavia, and St Charles areas.

Check out our "Rock*Star Maintenance Program" which saves you a ton of cash and a ton of worry. Harmonic will contact you twice per year when its time to service your furnace and air conditioner. We'll make sure that it is properly cleaned and the electrical components tested to insure they work properly through the season. "That's good. One less thing." - Forrest Gump.

Harmonic Heating & Air Conditioningstarstarstarstarhalf star4.9 / 5

142 Total Reviews Harmonic Heating & Air Conditioning


For more information about our 5-Star Furnace & A/C Service, just call 630-999-9008 or click today. BEST furnace repair in Batavia, Geneva, and St Charles. Best AC repair in Batavia, Geneva, and St Charles.


Harmonic is expanding our service coverage! Call or click today to learn more about the areas we now serve.