About Us

Providing comprehensive heating & cooling solutions

Ruyle Mechanical Services Inc. provides comprehensive heating and cooling solutions for commercial and industrial entities across Illinois. As one of the leading mechanical service providers in the state, Ruyle continues to live up to its reputation of excellence by offering sensible energy solutions that consider environmental impact while maintaining a low operations budget.


Our Expertise – With over 75 years of experience in the HVAC/R industry, Ruyle has developed a long-standing reputation of superior quality in Illinois. The difference in quality stems from the dependability of our workers: We boast the best technicians in the business. Instead of employing subcontractors, Ruyle sends trustworthy, highly knowledgeable staff members who are committed to the vision of this company and are directly accountable for the service provided to our valued customers.


Ruyle Mechanical Services Inc. specializes in the following divisions: 




Record of Distinction – Any company can claim to have outstanding service, but far fewer businesses can back up the assertion. At Ruyle, we do not hide our record. On the contrary, we take pride in it.



Ruyle Mechanical Services Inc. has earned both the STAR and HVAC GreenSTAR designations from the Mechanical Service Contractors Association (MSCA). Only one percent of all HVAC contractors in America can claim the latter exclusive designation. This proves Ruyle’s commitment to environmentally responsible energy solutions an excellence at every service level.


  • Ruyle’s ongoing safety training program and inventory program
  • Certification in Green Awareness
  • Remarkable customer service
  • Qualified service technicians who have passed the UA star HVACR Mastery exam, the UA Star Commercial Refrigeration exam & the BPI Building Analyst exams
  • Additional staff credentials—LEED AP credentials, LEED GA credentials, Certified Energy Manager (CEM) and the UA Energy Auditor certification




Contact Ruyle Today – If you are interested in an energy consultation from one of the leading mechanical service providers of sustainable solutions in Illinois, contact Ruyle today! Our company excels in developing and implementing innovative solutions that create healthy indoor work environments.




Our parent company, PremiStar, operates a footprint of 41 commercial HVAC,

building automation, and plumbing branch locations across 12 states. With over 2,000 employees, PremiStar helps critical facilities owners and managers in commercial, municipal, educational, and industrial market segments achieve more cost-effective, energy-efficient, and healthy environments.

To learn more about PremiStar, please visit www.PremiStar.com

To learn more about career opportunities, visit www.PremiStar.com/careers

Our Partners

Green Star
International Brotherhood of Electrical Workers
National Board of Boiler and Pressure Vessel Inspectors
Better Built
Lewis Industrial Services Inc
US Green Building Society
Energy Star
Energy Star Portfolio Manager