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About Us


Fair and honest service...at a fair and honest price

Weidner Refrigeration is a family-owned and operated business based in Divernon, Illinois


Weidner Refrigeration is a family-owned and operated business based in Divernon, Illinois. While working as a fireman at the Illinois State Fairgrounds, Dave Weidner attended trade school to study refrigeration. In 1974, he opened his part-time refrigeration business, which would eventually become a full-time job for him in 1978. As the company grew, he added employees, including his wife, Linda, and sons, Norman and Michael, making the business a true family affair.

Since then, the company has become one of the most respected heating, air conditioning, and ventilation companies in Central Illinois. It is one of just a few companies in the area to have North American Technican Excellence (NATE) - certified technicians. The NATE standard develops and promotes excellence in installation and service of HVAC equipment through voluntary testing.

In an industry that is constantly changing, Weidner Refrigeration strives to stay ahead of the curve through continuing education with a focus on high-efficiency, coupled with quality service. “Our success is based on two things – good customers and good employees,” Dave says.

You can trust the job will be done right with our NATE-certified tech team:

  • Air Conditioning
  • Air Distribution
  • Heat Pumps
  • Gas Furnaces
  • Boilers
  • Geothermal
  • Commerical Refridgeration
  • Senior HVAC Efficiency Analyst
  • Radiant Floors

Don't overpay on another energy bill.  Call the NATE-certified,
High-Efficiency Specialists of Weidner Refrigeration at 217-628-3400 today!
24/7 Emergency Service available.