• ACx personnel are certified by the University of Wisconsin as Qualified Commissioning Process Providers (QCxP)
  • One ACx staff member is a licensed Professional Engineer (PE) in Mechanical engineering (HVAC&R depth)
  • One staff member has training on plumbing, electrical, gas systems, envelope integrity, foundations, systems durability, and warranty applications from the National Conference of States Building Codes and Standards.
  • Combined, the firm's staff members have received an additional 100 hours of commissioning specific training form recognized leaders in the commissioning field: American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), University of Wisconsin, and Building Commissioning Association (BCA).


 Experience The firm's two partners have a combined 48 years of commissioning related experience in the mechanical, electrical, plumbing, fire safety, and communications fields. Harry Smith, QCxP has 30 years of quality inspection experience. 23 of those related specifically to inspection of structures (office space, classroom, commercial structures, and residential). Mr. Smith has an additional 14 years management experience. Rusty Smith, PE, QCxP, CICM has over 18 years of engineering experience. Ten years of which were in the field of heating, ventilation, air conditioning, and refrigeration and related control systems. Five years of which Mr. Smith served as lead engineer or "Engineering Subject Matter Expert."

Rusty Smith, PE, QCxP, CICM

Partner, Principal Engineer

"The bottom line is that commissioning improves a building's value... systems that function properly use less energy, experience less down time, and require less maintenance, thereby saving money for building owners."

      - Building Commissioning: The Key to Quality Assurance, U.S. Dept. of Energy

Harry Smith, QCxP

Partner, Cx Principal

"Don't find a fault, find a remedy."

      - Henry Ford

48 years of experience in commissioning related fields contributes to our insight and dedication to the commissioning process. Our commitment to the commissioning process is the what brings value to our customers and produces more efficient buildings.


424 Main Street W., Suite 19

P.O. Box 336

Abbeville Ga, 31001

(229) 467-2795

ACx has training and/or certifications through the following institutions.