At Environmental Test and Balance Co., LLC (ETB), we pride ourselves on being one of the pioneers in the testing and balancing industry. Founded in 1982 by Walter H. Green and Charles E. Fant, III, our company has continued to carry forward the founding principles of professionalism, integrity, and commitment to customer satisfaction.
Our Story
ETB was born out of a passion for improving HVAC performance and a commitment to the betterment of the industry. Our founders, Walt and Chuck, had a long history of mechanical system design and shared a passion for the test and balance industry. Together, they formed a partnership that would change the course of the industry. With decades of experience in the industry, ETB has consistently maintained its reputation as a leader in the fields of testing, adjusting and balancing; cleanroom certification; sound and vibration analysis; HVAC commissioning; and indoor air quality testing.
Our Services
At ETB, we offer a wide range of services designed to ensure that your building's HVAC system is running at optimal performance. Our services include:
- HVAC Testing and Balancing: Our team of experienced technicians uses state-of-the-art equipment to test and balance your HVAC system, ensuring that it is running efficiently and effectively.
- Cleanroom Certification: We provide certification services for cleanrooms, ensuring that the rooms meet the necessary standards for cleanliness and purity.
- IAQ Testing: Our indoor air quality testing services help identify potential health hazards and ensure that your building's air quality meets the necessary standards.
- HVAC Commissioning: Our commissioning procedures include design reviews, start-up verification, controls verification, functional performance testing, owner's training, and smoke control special inspections.
- Sound and Vibration Analysis: Our team of experts uses advanced equipment to analyze and identify potential issues with your building's sound and vibration levels.
What Sets Us Apart
At ETB, we stand out from the competition due to our commitment to professionalism, integrity, and customer satisfaction. We are an independent company that does not affiliate with mechanical contractors, design engineers, or equipment manufacturers, allowing us to provide unbiased test and balance services to our clients. Our team of experts is dedicated to providing exceptional services and ensuring that your building's HVAC system is running at its best.
AABC National Performance Guaranty
As a member of the Association of Energy Engineers (AABB) and the Air-Conditioning, Heating, Refrigeration Certification Board (ACHR), ETB's work is backed by the AABC National Performance Guaranty, giving our clients the peace of mind that our work is guaranteed.
Our Leadership
Our leadership team is committed to continuing education and continuing to advance the industry. Our team of experts is dedicated to providing the highest quality services and ensuring that your building's HVAC system is running at its best.
Conclusion
At Environmental Test and Balance Co., LLC (ETB), we are dedicated to providing exceptional service and ensuring that your building's HVAC system is running at optimal performance. With decades of experience in the industry, we are committed to professionalism, integrity, and customer satisfaction.
Overview of Reviews
General Sentiment
The reviews are overwhelmingly positive, with praises for the company's excellent work in commercial HVAC systems, lab equipment validation, and cleanroom certifications.
Specific Praises
- The company's expertise in commercial HVAC systems, including testing and balancing, is highly commended.
- Their services in cleanroom certifications, Biosafety Cabinets, aseptic isolators, and clean benches are also highly praised.

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