As one of the Delaware Valley’s most
respected structural engineering firms Long,
Tann & D’Onofrio has served a wide range of
clients continuously for over 60 years.  We
provide structural engineering consulting services
by delivering personal, practical and cost-effective
solutions, while building productive, long-term
relationships in the process.  And with almost 175
combined years of structural engineering experience,
the firm has the skill and expertise to tackle virtually
any structural engineering project or problem.

When we undertake a project, our staff is assigned on a
start-to-finish basis.  We work closely with our clients, and
approach each project with a fresh vision, open to new ideas
and solutions.  As the project progresses, the entire Long, Tann
& D’Onofrio team assists with input and contributes to the ultimate
success of the endeavor.  We also strive to build partnership teams with
owners, architects and contractors, further enhancing the effective delivery
of our structural engineering consulting services.

Most importantly, our designs are practical and realistic.  We understand construction costs and how the final product of our engineering work is applied to a structure.  We blend a creative approach with the wisdom of experience to ensure that our final design is functional and compliant.  Finally, the Long, Tann & D’Onofrio team works hard to minimize the cost burden of the solution.

Long, Tann & D’Onofrio—a name you can trust.  Call us today, and see how we can serve you.