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As one of the Delaware Valley's most respected structural engineering companies Long, Tann & D'Onofrio has served a huge array of customers continuously for over sixty years. We supply structural engineering consulting services by providing individual, practical and cost-effective solutions, while building productive, long-term relationships in the process.
Reviews (3)
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Viren Patel
Dec 22, 2017
Did not want to give a proposal wanted the project outright without giving any information of services or billing and fees for services.
Ben Punch
Oct 19, 2017
Very knowledgeable staff. It is always pleasure to ask for their help.
Rachel Goffe
Jul 16, 2017
Brad has been the structural engineer on several projects I've managed. He has been extremely knowledgeable, timely in his responses and easy to work with, even when the project schedule is unreasonably fast.