Experience, Our Greatest Asset


The Sums of the Whole

Gary A. Cummings

NEBB Certified Professional

As President of Pro-Tech Diversified Services, Inc. and as a National Environmental Balancing Bureau (NEBB) Certified Professional, Mr. Cummings oversees daily operations and performs report review and certification.

Prior to obtaining certifications from NEBB, in 1999 Mr. Cummings was certified through the Associated Air Balance Council (AABC) as a test and balance engineer (Certifications #99-09-32).  Mr. Cummings also holds a Certification of Refrigerant Recovery through the Refrigeration Service Engineers Society (Certification #079203504).  Mr. Cummings is also an associate member of the American Society of Heating, Refrigerating, and Air Conditioning Engineers, Inc. (ASHRAE) and is currently serving as a member of the Board of Directors for the Florida chapter of the National Environmental Balancing Bureau.

Prior to transitioning into the test and balance industry in 1992, Mr. Cummings was employed as an HVAC service technician where his duties included the sales, servicing and troubleshooting of HVAC systems.  In 1989, Mr. Cummings completed an extensive training course at Tampa Bay Vocational Technical School in HVAC systems design, operation and service.  With over 19 years experience in the HVAC industry, Mr. Cummings has had the opportunity to be involved with various projects both at home and abroad.


Steve W. Mullins

NEBB Certified Technician

Mr. Mullins entered the test and balance industry in 1990.  During his career he has performed in various capacities.  Mr. Mullins current responsibilities are project procurement and estimating.  Mr. Mullins has had extensive training and experience in HVAC testing and balancing during his 18 years in the industry.

Mr. Mullins project management experience included written documentation and accurate reporting of deficiencies, liaison for contractors, subcontractors, owners and engineers, as well as performing the testing and balancing of the HVAC systems.  He has been involved in many hospital renovation projects throughout the State of Florida.

In 1998, Mr. Mullins passed exams administered by the Associated Air Balance Council (AABC) to become a certified technician.  Upon employment with Pro-Tech Diversified Services, Inc., Mr. Mullins has improved his resume by passing the required written and practical exams to obtain certification from the National Environmental Balancing Bureau. (NEBB)