About

Lewis S. Goodfriend & Associates is a diversified acoustical consulting engineering firm offering professional services in the fields of architectural acoustics; building acoustics; environmental, industrial and transportation noise evaluation, HVAC noise and vibration analysis and expert witness testimony. For 70 years, LSG&A has been providing acoustical engineering services for projects that include educational facilities, corporations, Co-Op Boards, attorneys, industrial organizations, architectural firms, engineering firms, houses of worship, municipalities and commercial enterprises. The Firm is approved to do work with the NYC Schools Construction Authority, NJ School Development Authority, and the Philadelphia School District. The Firm is also a certified Small Business Enterprise and has licensed Professional Engineers in NJ, NY, PA, MA, SC, MD, OR and CT