HVAC Repair, Maintenance & Installation For Your Home or Business


AC, Furnace, and Water Heating Services

In St. Charles, IL


St. Charles is a city in DuPage and Kane counties and lies 40 miles west of Chicago. Today, the city has a population of around 33,000, and its population grew consistently through the decades alongside the growth of nearby Chicago. Originally when it was first settled in the 1830s, the city was known as Charleston, but was changed to St. Charles and incorporated as a city in 1839. The underground railroad was speculated to have many stations operating in St. Charles homes, and the city had an active abolitionist group called the Kane County Anti-Slavery Society during the last half the of the 19th century.

Today the city has a great public and private school system, a vibrant downtown, and plenty of park and recreation space for its residents to enjoy. One of our home offices is here in St. Charles, and we hope you enjoy living and working here as much as we do at Harmonic. The next time you need HVAC repair, maintenance or a system installation get in touch with our team!



Schedule Service in St. Charles

Furnace Repair and Installation in St. Charles

Our team of expert heating technicians is here to help you with all of your furnace service needs. We have the knowledge and expertise to handle repair and system maintenance for all furnace makes and models, and offer 24 / 7 emergency furnace repair when you need it. If your furnace breaks down or stops working effectively during the winter here in St. Charles, that can be stressful and even dangerous. Winter's here have plenty of snow and freezing temperatures, and we all rely on our heating systems to keep us warm and comfortable during the cold months. If the worse happens and you need emergency furnace service at your home here in St. Charles call us and we will dispatch a technician right away to solve your issue and get your system running well again.

Armstrong Air Air Conditioners

Sometimes the best thing you can do for a old furnace that needs significant repair is to consider upgrading to a newer and more efficient unit. At Harmonic we are proud to be part of the Armstrong Air ProTeam in Illinois, which means our knowledge of Armstrong Air furnace service is par-none. If you choose to get a new furnace from Armstrong installed for your home or business you won't be disappointed. Their furnace units are some of the most effective, reliable and efficient systems in the furnace industry today.

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Armstrong Air Air Conditioners


Armstrong Air Air Conditioners


Mitsubishi Mini Splits



Armstrong Air Air Conditioners

A/C Repair in St. Charles

Is your ductless mini-split or air conditioner not running as it should? If your air conditioning system isn't running the way it should give us a call at Harmonic Heating & Air Conditioning. We will diagnose the issue with your cooling system and come up with a solution. When an A/C system issue is beyond repair we suggest system replacement and can help you with that process as well.


Armstrong Air Air Conditioners

Hot Water Heater Installation & Replacement

Is it time for a new hot water heater for your home here in St. Charles? If you have a tank or tankless water heater that has been performing poorly, not keeping up with hot water demand, or you notice noises or seepage around your water heater that's a bad sign. Our team here at Harmonic Heating and Air Conditioning has the proper tools and the extensive training required to service, repair and maintain your tank or tankless water heater regardless of brand. But, sometimes the most appropriate thing to do if your system is old and has broken down is to replace it with a brand new more efficient tank or tankless water heater.

We offer installation for both traditional tank hot water heaters and tankless style hot water heaters. Both have their benefits; tankless water heaters can last longer and perform more efficiently than tank water heaters, and sometimes tank water heaters can keep up with more hot water demand compared to a tankless water heater. To know which style best fits your needs here in the St. Charles area call our team today. We can help you choose the perfect new hot water heater for your home or business.


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