24/7 Emergency Line 630-341-3996 francohvac@hotmail.com

About Us

As your Chicagoland HVAC consultant, Fahrenheit Mechanical Inc. will take the time to listen to and understand your concerns regarding the comfort, health, and safety of your commercial or residential space.

As a Fahrenheit Mechanical customer, you’re getting the best of the best. Our commitment to comfort, quality and value has allowed us to become the area’s leader in heating, ventilation, and air conditioning technology and service. Keeping you comfortable and safe is our goal. We want to be your HVAC resource today, tomorrow and for years to come.

Our Story

Providing HVAC Services Since 2001

Fahrenheit Mechanical Inc. was started in 2001 by Franco DeFilippis, who has been in the field for over 25 years. Fahrenheit Mechanical Inc. specializes in providing the best residential and commercial HVAC services around Chicagoland. Equipped with 6 trucks and 24 hour emergency service, Fahrenheit Mechanical Inc. is the #1 HVAC service provider for Addison and the surrounding areas! 

Fahrenheit Mechanical Inc. is proud to now offer commercial refrigeration and freezer services to all service areas!

Full Service, Quality
HVAC Services

Fahrenheit Mechanical Inc. is at the forefront of the HVAC industry and our certified professionals have been serving our customers since 2001. Our team stands behind their work and is committed to excellence. They are trained with the latest industry standards, new technologies and more. With maintenance and repairs, our service professionals will examine your systems carefully and offer recommendations for repair or upkeep. 


  • Furnaces
  • Air Conditioners
  • Heat Pumps & Mini Split Systems
  • Water Heaters
  • Duct Installation


  • Repair & Maintenance
  • HVAC Design & Installation
  • Duct Cleaning & Filter Changes
  • Control Systems
  • Heat Pumps & Split Systems
  • Refrigeration & Walk-in Freezers/Coolers


825 S. Rowhling Rd. 

Addison, IL 60101