COLLABORATIVE DESIGN SOLUTIONS Trefz Engineering, Inc. is an MEP/FP engineering and design firm that provides planning, engineering, design, and construction administrative services for Higher Education, Hospital, District Energy, and Pharmaceutical facilities. Founded in 1989, Trefz Engineering, Inc. has been the Engineer-of-Record for over five Hundred Million Dollars of Construction to clients and facilities that span a geographical area including Vermont to Virginia, Maryland to Texas, and Hawaii to The Bahamas. The Trefz team focuses on complex and specialty design issues; producing sustainable and energy efficient design systems/solutions unique to each project from hospital renovations to campus master planning.