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Structural Engineering Services

Mainstay designs structural systems that give form to each owner’s or architect’s vision. Our firm’s diverse industry sector experience with all types and sizes of building structures brings unique insight and innovative solutions to each project. From feasibility studies to full service analysis and design of new buildings, and from condition assessment to the rehabilitation of existing buildings, we offer the services and experience you need to successfully meet your objectives.

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Specialized Structural Design   & Analysis Project Types

  • Equipment Mezzanines

  • Dunnage Systems

  • Railings

  • Signs

  • Catwalks and Equipment Platforms

  • Equipment Support

  • Structural Condition Assessments

  • Structural Rehabilitation

  • Structural Demolition

Over the years, Mainstay has developed numerous design partnerships with Architectural and Engineering Firms. Our engineers design buildings of all sizes and budgets as an integral part of the design team, we assist in selecting the structural system that is most economical and best suited to each project.  Our structural design experience includes steel; conventional, post-tensioned and pre-cast concrete; timber; and masonry, as well as various alternate hybrid and patented systems.

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Structural Engineering 

  • Evaluations and Inspections Reports

  • Forensic Structural Engineering

  • Expert Witness Testimonies

  • Peer Review

  • Value Engineering

  • Quality Assurance

  • Seismic and Wind Design and Analysis

  • Special Inspections

  • Full-Service Structural Engineering Design and Analysis for Buildings, Building Additions, and Special Structures



1750 Walton Road, Suite 200

Blue Bell, PA 19422


50 South 16th Street, Suite 1700

Philadelphia, PA 19102


Social Media

  • LinkedIn


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