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Our Services

Structural Engineering

Since 1981, O’Donnell & Naccarato has delivered award-winning structural engineering services for more than 40,000 projects nationwide. Our commitment to excellence is driven by a Progressive Design and Team-Oriented Approach, ensuring that every solution we provide not only meets the technical demands of each project but also fosters the long-term success of our clients, employees, and the communities we serve. By leveraging innovation, collaboration, and decades of expertise, we consistently offer structural solutions that are both practical and forward-thinking, contributing to the built environment in meaningful and sustainable ways.

New Construction

At O’Donnell & Naccarato, we provide comprehensive structural engineering services for new construction projects, ensuring that each building is designed with the highest standards of safety, efficiency, and performance. Our expertise spans across various structural systems, including steel, concrete, wood, timber, and masonry, allowing us to tailor solutions that meet the unique demands of each project. Whether it’s a high-rise office building, residential development, or institutional facility, we leverage our deep understanding of these materials to deliver structures that are both innovative and resilient.

We also specialize in structural feasibility studies, where our engineers evaluate potential challenges and opportunities before construction begins. This process involves assessing factors like load-bearing capacities, material suitability, and cost-effectiveness to ensure the project’s structural design is optimized from the outset.

Additionally, our team offers structural peer reviews to provide an objective, third-party evaluation of existing designs. By examining structural plans for accuracy, safety, and efficiency, we help identify potential issues early in the process, minimizing risk and ensuring compliance with codes, industry standards, and best practices.

New construction building next to crane | Structural Engineering Services | O'Donnell & Naccarato
Existing Structures

Our work doesn’t end with new construction! We bring decades of expertise to the structural engineering of existing buildings, offering a full range of services designed to maintain, enhance, and extend the life of structures. Our Condition Assessments provide a thorough evaluation of a building’s current structural integrity, identifying any signs of deterioration or issues that could affect long-term performance. Through detailed analysis, we deliver actionable insights to guide maintenance, repairs, or further development.

We also specialize in Adaptive Reuse and Renovation, transforming existing buildings to meet new purposes or modern standards while preserving their structural integrity. Our approach balances creative design with technical precision, ensuring that the modifications enhance both functionality and aesthetic value.

For projects requiring increased space or capacity, our team provides expertise in Vertical and Horizontal Expansions, integrating new additions into the existing structure seamlessly. This service ensures that expansions are structurally sound while meeting all regulatory and safety requirements.

We also assist building owners with Structural Recertifications, offering thorough inspections and evaluations to meet local compliance mandates and ensure that buildings remain safe and operable. In cases where immediate action is required, our firm provides Emergency Response services, mobilizing quickly to assess and address structural damage from events such as natural disasters, accidents, or unforeseen structural failures.

Large apartment building | Structural Engineering Services | O'Donnell & Naccarato
Our Services

We offer a full suite of structural engineering services designed to meet the needs of both new construction and existing buildings. Our experienced team provides innovative and practical solutions, whether designing complex structural systems from the ground up or enhancing and maintaining the integrity of existing structures. Don’t see what you are looking for? Give us a call or send us an email and we will be happy to discuss your project.

New Construction
  • Structural System Design: Steel/Concrete/Wood/Timber/Masonry/and more!
  • Feasibility Studies
  • Peer Review
Existing Structures
  • Condition Assessments
  • Adaptive Reuse/Renovation
  • Vertical and Horizontal Expansions
  • Recertifications
  • Emergency Response
Building structure under construction | Structural Engineering Services | O'Donnell & Naccarato

To get started, call us at 800.607.7284 or email us at info@o-n.com to get your structure on our schedule for inspection by one of our engineers.