Trusted Structural Engineering Consultants Since 2004

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Our Structural Engineering Firm

Established in 2004, Structural Design Services, PLLC provides professional structural engineering consulting services for a wide range of residential, commercial, governmental, educational, and religious projects, as well as building evaluations.


Located in Bridgewater, Virginia, the firm is owned and operated by Robin Helsing Simmons, PE, and is licensed to practice in Virginia, Maryland, and the District of Columbia. Structural Design Services, PLLC also maintains an active NCEES record to support streamlined licensure in additional states.

Meet Robin Helsing Simmons, PE

Robin Helsing Simmons, PE, has more than 24 years of experience in the structural design of steel, concrete, masonry, and wood structures for a wide range of residential, commercial, and institutional projects. She is a licensed professional engineer in Virginia, Maryland, and the District of Columbia.


At Structural Design Services, PLLC, we are committed to delivering accurate, well-coordinated construction documents and dependable structural engineering solutions. Our goal is to provide clear, permit-ready plans that support efficient construction, successful project execution, and responsive client service tailored to each project’s unique requirements.

Robin Helsing Simmons

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