ENERGYTESTING & BALANCE, INC. will help ensure that building owners receive a building that provides maximum occupant comfort with the most economical performance that their HVAC systems can deliver. We will foster a culture of continuous learning that values open honest feedback and rewards personal growth and company successes.


ENERGY TESTING & BALANCE, INC. (ET&B, Inc.) is an independent, consulting Professional Engineering firm. providing Enhanced Systems Testing, Adjusting and Balancing and Building Commissioning services since 1979.
As the owner’s representative, we help ensure that you receive a building that provides maximum occupant comfort with the most optimal, economical performance that your system can deliver.

We have extensive experience with institutional/higher education, healthcare, research and K-12 educational facilities.

We are focused on delivering quality, that is consistent with the latest resources and technologies available.

We are committed to seek out creative solutions to our customers’ requirements through high quality professional service, reliable engineering and above all, Integrity. Our reputation is built on consistently surpassing our customer’s expectations, and for that, we continually strive.

Our long term client relationships speak to the integrity and consistency of our services.


Sonny Vidovic, P.E., MSc, CxA

Mr. Vidovic is widely regarded as an expert in the Testing Adjusting and Balancing field. He has been with our firm since 1990. Prior to that he worked in the ship building industry in Europe. With more than 30 years’ experience in mechanical engineering and project management, he perpetuates our founder’s values by delivering consistent quality, with the highest degree of integrity. In addition to providing direction for our firm, he provides design review consulting services, retro commissioning and problem solving for our clients.

Denise Vidovic, CxA
Vice President

Ms Vidovic provides all Operational support to our firm including Contract management and Finance. Additionally, she leads our Commissioning Team, providing both HVAC and LEED Commissioning Services for our clients. Ms. Vidovic has been with our firm since 2006. Prior to joining our team, she was an Executive Manager in the high tech industry holding management roles in Finance, Sales, Operations, Project Management and Process Improvement related functions.


Higher Education

University of Texas at Austin

University of Texas at El Paso

University of Texas at San Antonio

University of Texas at Rio Grande Valley

University of Texas at Permian Basin

Texas State University – San Marcos

Texas State University – Round Rock

Texas A&M University System

California State University – Los Angeles

Healthcare, Research & Offices

Dell Medical School - Austin

University of Texas Health Science Center Houston

University of Texas Health Science Center San Antonio

University of Texas Medical Branch – Galveston

MD Anderson

St. David’s Healthcare – South Austin Medical Center

University of Texas Systems

Texas Facilities Commission

Texas Instruments

Vivarium, Biosafety Laboratory, & Cleanrooms


Northeast Independent School District – San Antonio, TX

Schertz-Cibolo-Universal City ISD – Schertz TX

Dallas Independent School District – Dallas, TX


Darrell K Royal

Stadium- Austin, Tx

Frank Erwin Special Events Center-Austin, Tx

Denton A. Cooley Pavilion-Austin, Tx

Gregory Memorial Gymnasium- Austin, Tx

Texas Tennis Center- Austin, Tx

Larry K. Durham Center- El Paso, Tx

Recreation, Education, & Kinesiology Center, Brownsville, Tx






SG Thompson



Following industry standards and engineering principles, environmental systems are checked and adjusted to achieve design objectives.


ACG certified commissioning providers for new and existing buildings.

Design Consulting

Design reviews reduce costly errors before the project is started.


Experts in controls strategies and building automation systems.


Read, record , and analyze equipment vibration to avoid potential maintenance issues.


Using an Octave Band Analyzer our engineers will read, record, and analyze sound levels in the buildings.


NFC ACCREDITED BIOHAZARD CABINET FIELD CERTIFIER, with the latest state of the art equipment. We certify your Fume Hoods in compliance with the rigorous ASHRAE 110-2016 standards.


Engineers will analyze HVAC systems energy use and set the
system for maximum performance with minimum energy usage.

Environmental Facility Certification

Equipped with the latest instruments to conduct every test specified and/or required by ISO 14644-clean rooms.

In-House Testing Laboratory

A fully equipped and computerized testing laboratory is available to conduct performance tests on HVAC equipment and controls.

HVAC Systems Troubleshooting

 Extensive experience combined with sound engineering principles enable us to identify root causes and provide actionable solutions.

HVAC Training Classes

Customer training  for building owners and facility managers to better understand and operate  their HVAC systems.


Start your career with us

With increasing expectations for energy efficiency, and improved air quality, demand for Independent Commissioning and Test, Adjust and Balance service is growing.
We are always looking for innovative people to join our quality-oriented team.
If you love working in a project environment that changes daily, like learning new technologies and have a logical, methodical approach to problem solving, you may have found your perfect fit!
We provide competitive benefits

– Matching 401K
– Employer subsidized Group Health, Dental & Vision
– Section 125/Cafeteria Plan
– Company paid Life Insurance
– Annual bonus opportunities

But, what we really offer is a career that is truly different, exciting and rewarding!

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