Business Details
50 Years
experience
Expert Acoustical Engineering & Noise Control Solutions
Hessler Associates has specialized in acoustical design and testing for power generation and industrial facilities globally for over 35 years. Our team delivers engineering and consulting services including noise modeling, sound mitigation, and compliance testing, addressing complex challenges across diverse projects. With expertise in gas turbines, wind turbines, and industrial noise control, we combine decades of experience with innovative methodologies to meet international standards. Our engineers hold advanced degrees and certifications, ensuring technical excellence in every project.We have supported landmark cases as expert witnesses and contributed to industry standards, maintaining a reputation for precision and reliability. Our commitment to advancing acoustical science is reflected in our extensive publications and participation in global regulatory frameworks. By prioritizing client collaboration and cutting-edge technology, we provide tailored solutions that balance environmental compliance with operational efficiency. This dedication to excellence has established us as a trusted partner for critical infrastructure projects worldwide.
Services
Acoustical Design
Noise Modeling
Compliance Testing
Wind Turbine Analysis
Diesel Installation Testing
Data Center HVAC Design
Landfill Noise Assessment
Gas Turbine Projects
Biomass Plant Acoustics
Quarry Noise Control
Details
- Year established: 1976
Highlights and features
- We offer 35+ years of specialized acoustical engineering expertise.
- Our team includes INCE-certified engineers with global project experience.
- We develop innovative solutions for complex industrial noise challenges.
- We maintain active roles in shaping international acoustical standards.
- Our compliance testing ensures regulatory approval for critical infrastructure.
Associations and certifications
- Institute of Noise Control Engineering (INCE)
- American National Standards Institute (ANSI)
Services
Acoustical Design
Our acoustical design services optimize noise control for power plants and industrial facilities. We employ advanced modeling techniques to predict sound propagation and develop tailored mitigation strategies. This ensures compliance with environmental regulations while maintaining operational efficiency across diverse projects.
Noise Modeling
We create detailed noise models to analyze sound emissions from energy and industrial operations. Using specialized software, we simulate real-world conditions to identify noise sources and implement effective reduction measures. This proactive approach prevents regulatory issues and community disturbances.
Compliance Testing
Our compliance testing verifies adherence to local and international noise regulations. We conduct field measurements and comparative analyses to validate sound emissions against permit requirements. This service ensures legal operation and minimizes project delays for clients worldwide.
Wind Turbine Analysis
We specialize in wind turbine noise assessment, including low-frequency emissions and community impact studies. Our team develops measurement protocols and mitigation plans that balance renewable energy production with environmental considerations. This expertise supports successful project permitting and long-term operation.
Expert Witness Services
Our engineers provide expert testimony for regulatory hearings and legal proceedings involving noise control. With decades of courtroom experience, we deliver technically rigorous analyses and clear communication of acoustical findings to support clients during permitting challenges and litigation.
People
David M. Hessler
Vice President and Principal Consultant
David Hessler leads acoustical design and testing projects with 30+ years of experience in power generation noise control. He holds mechanical engineering degrees from the University of Hartford and University of Maryland, and is a registered Professional Engineer and INCE member.
George F. Hessler Jr.
President and Principal Consultant
Founder George Hessler established the firm in 1976, developing industry standards for gas turbine acoustics. With 40+ years in noise control engineering, he holds a Johns Hopkins mechanical engineering degree and INCE board certification, continuing active project involvement.
Mark E. Hessler
Technician and Computer Modeling Specialist
Mark Hessler specializes in noise modeling software and field measurement equipment. After a career in broadcast sound engineering, he joined the firm in 2001, applying technical expertise to complex acoustical simulations and data analysis for global projects.
Questions
What industries do you serve?
We specialize in power generation (gas turbines, wind farms, coal plants) and industrial facilities including data centers, landfills, and biomass plants worldwide.
How do you ensure regulatory compliance?
We conduct detailed noise modeling, field measurements, and permit documentation to meet local and international sound emission standards for each project.
Can you handle international projects?
Yes, our team has completed acoustical assessments and compliance testing across six continents for over 35 years.
Do you provide expert testimony?
Our engineers have served as expert witnesses in over 15 major regulatory proceedings and legal cases involving industrial noise control.
What makes your approach unique?
We combine proprietary noise prediction software with decades of field experience to develop customized solutions that balance technical requirements with community concerns.
