HVAC Repair, Maintenance & Installation For Your Home or Business


Heating, Cooling and IAQ Services

In Oswego, IL


Harmonic Heating and Air Conditioning is proud to be your heating, cooling and indoor air quality (IAQ) specialist here in Oswego and the surrounding area. We've been helping the residents here with all of their repair, maintenance and installation needs for all of their comfort systems. That includes air conditioners, mini splits, heat pumps, furnaces, hot water heaters, indoor air quality systems & more. We're your total HVAC service expert in Oswego. Oswego is a small city of around 34,000 people in Kendall and Will Counties. Oswego had its major expansion happen during the mid 1950s when Caterpillar and Western Electric built industrial plants near the city.

The 1980s saw a substantial housing boom, and until 1979 Oswego was known for its drag-strip which is where muscle cars were raced by drivers from all over the Midwest. Oswego is home to over 1100 acres of open land, trails and parks, so area residents enjoy plenty of access to nature and recreation. Call Harmonic Heating and Air Conditioning for all of your HVAC service needs in Oswego!



Schedule Service in Oswego

AC and Mini Split Services in Oswego

At Harmonic Heating and Air Conditioning one of our top priorities is keeping our customers cool during our hot and muggy Illinois summers. When the temperatures are soaring and humidity is high, you rely on your home's central air conditioning, mini split system or heat pump system to keep comfortable. If your home's cooling system is on the fritz, or has broken down, that can be uncomfortable and dangerous if its during an unfortunate heat wave. The good news is if that happens to you in the Oswego area you can call us for emergency repair services.

Armstrong Air Air Conditioners


We can handle any air conditioning and mini split repair you experience with your system. If your system is on the older side, more than 12 years, and needs an expensive repair, it might be best to replace the system. We have a full line of central AC systems from Armstrong Air and ductless mini split heat pumps from Mitsubishi for your new installation or replacement needs. You can't beat a new Armstrong Air AC system or Mitsubishi mini split in terms of their efficiency and effectiveness. Get your new cooling system from Harmonic today in Oswego!

Harmonic Heating & Air Conditioningstarstarstarstarstar4.9 / 5

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


Armstrong Air Air Conditioners


Armstrong Air Air Conditioners


Mitsubishi Mini Splits





Hot Water Heating and Furnace Service Needs

If you need hot water heater repair, maintenance or installation for your tank or tankless style hot water heater, our team are the experts to call. We've been performing repair, maintenance and installation for both traditional tank heaters and tankless hot water heaters for years, in both commercial and residential applications. Your home's or businesses hot water heater is important year round for comfort. Unlike central heating and cooling systems which we only rely on seasonally, our hot water heaters need to perform 24 / 7, whenever we might need hot water to wash, bathe or for any other purposes.


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Armstrong Air Air Conditioners

With that much use, sometimes without proper maintenance and tune-up services hot water heaters can experience service issues. If you need repair or would like to schedule a tune-up service for your tank or tankless water heater give us a call right away. Our expert technicians can handle just about any repair your hot water heater might need, and we offer maintenance tune-ups for all makes and models.

If you are in the market for a brand new water heater, we offer both tank and tankless water heaters from State. Tankless water heaters generally last longer and are more efficient than tank water heaters, while tank water heaters sometimes can meet greater hot water output than tankless. To be sure what's right for your hot water needs it's best to consult one of our expert technicians. Get in touch today for your hot water heater repair, installation or tune-up service in Oswego!


Armstrong Air Air Conditioners