Harmonic has been serving customers across Chicagoland suburbs for over a decade. We recently acquired Official Heating and Cooling in Crystal Lake, Illinois and refreshed it as "a Harmonic company". We also acquired Arrow Plumbing in Libertyville, Illinois.

We are now able to offer HVAC, Electrical, Plumbing, Handyman and Home Renovation services to customers across Chicagoland's suburbs, such as Naperville, St Charles, Crystal Lake, Barrington, McHenry, Lake Forrest, Glenview, Libertyville, and surrounding areas.

Proudly serving Kane County, DuPage County, Kendall County, and Will County.