Piho Engineering

We are a refrigeration and mechanical engineering firm with decades of experience in process and refrigeration system design. Our firm is led by John D. Piho, P.E., a licensed professional engineer in multiple states who brings over 30 years of specialized expertise to every project. We have designed systems ranging from 5TR to 12,000TR of refrigeration and secondary refrigerants including water, brine, glycols, and air. Our team serves global companies, U.S. food and beverage manufacturers, associations, and government agencies throughout the United States. We provide comprehensive services including load calculations, equipment selection, detailed refrigeration systems design, industrial ventilation, operator training, and mechanical inspection services. Our expertise extends to Process Safety Management and EPA Risk Management Programs, areas in which we have been actively involved for over a decade.

We have authored several technical papers on topics such as Freezing Systems, Floor Warming of Refrigerated Facilities, History of Ammonia Refrigeration, and Overview of PSM. Our project portfolio includes complex installations like bakery ammonia refrigeration systems, 1800 TR condenser installations, and pharmaceutical ammonia packages. We approach each project with a commitment to engineering excellence and rigorous professional standards. Our clients rely on us to deliver safe, efficient, and reliable refrigeration solutions that meet their operational requirements. We take pride in our ability to solve challenging engineering problems across diverse industries including pharmaceutical, chemical, dairy, food storage, and food processing. Our dedication to client satisfaction is reflected in the long-term relationships we build and the quality of our workmanship.