Heating & Air Conditioning Service Specialists.

Heating and Cooling Oswego, IL

Our clients understand the expertise our team has at Franzen Heating & Cooling.  Oswego, IL homeowners and businesses appreciate how skilled our team is in Heating and Cooling.

Oswego, IL customers value our 2 Hour Guaranteed Response Time, 24 Hour Emergency Service and our 24 Hour Live Call Center.

If you require repair work, our team has experience working on all products.  Franzen Heating & Cooling is family owned and operated.  Every one of our technicians is an employee, since we simply don’t use subcontractors.

If you need new products, Trane is the brand we use.  We can install Furnaces, Air Conditioners, Air Cleaners, Humidifiers, and Thermostats.  We always give you free estimates on new equipment.

You can rely on us at Franzen Heating & Cooling.  Oswego, IL customers should talk to us today at (630) 859-2164 for expert assistance.


Excellent service and price.  They told me what was wrong with my system and how it could be fixed.  They didn’t try to upsell me on a more expensive system or try to pile up add-ons to raise the cost.  Jeremy did our estimate and explained everything.  Joe and Jason did a fantastic install and cleaned everything up when they were done, including sweeping my basement floor!  I strongly recommend Franzen.

Frank B., Oswego IL