Orndorf & Associates, Inc.

Designing your vision, one detail at a time.

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About the firm

Orndorf & Associates, Inc. (O&A) delivers pragmatic structural engineering solutions from its base in suburban Philadelphia. Since 1998, it has built a reputation by combining technical excellence with constructible designs that contractors appreciate while meeting the vision of both owners and architects. The practice tackles projects ranging from complex renovations of historic Philadelphia structures to modern commercial developments across the country, bringing the same hands-on approach to each. It prides itself on finding innovative yet practical structural solutions that balance design intent, constructability, and value.

Established
1998
Firm type
Structural Engineering

People

Kevin OrndorfPrincipal

Matthew EdwardsPresident

Quat NguyenAssociate

Capabilities

Structural Design & Analysis

Service website

Provides comprehensive technical design for new building structures, utilizing advanced systems to deliver efficient and constructible solutions.

  • New Construction Design

    Full-service structural framing, foundation, and lateral system designs for modern builds.

  • Specialty Structural Design

    Engineered designs for fall protection systems, equipment supports, and blast-resistant systems.

  • Delegated Design

    Specialized design of precast concrete, steel connections, and cold-formed steel framing systems.

  • Construction Documentation Services

    Complete structural drawings, specs, load calculations, and structural BIM modeling and coordination.

Renovation and Adaptive Reuse

Service website

Preserves and adapts existing and historic properties through meticulous assessment, reinforcement, and structural re-engineering.

  • Historic Preservation Engineering

    Sensitive structural engineering designed to retain the historic fabric of heritage structures.

  • Seismic and Structural Upgrades

    Seismic upgrades, floor capacity analysis, and structural modifications for existing buildings.

  • Structural Modifications and Expansions

    Engineering of roof-level additions, vertical expansions, and structural repurposing.

  • Facade Retention and Masonry Stabilization

    Design of temporary facade retention, masonry wall stabilization, and corrosion mitigation.

Peer Review & Technical Advisory

Service website

Conducts independent technical audits, code verification, and efficiency optimization to safeguard structural integrity and manage costs.

  • Third-Party Design Verification

    Independent structural engineering peer reviews to verify design assumptions and calculations.

  • Value Engineering Assessments

    In-depth evaluations to optimize structural materials and systems without sacrificing design intent.

  • Constructability and Code Reviews

    Pre-construction evaluations to ensure design clarity, minimize field changes, and confirm code compliance.

  • Structural System Optimization

    Analysis of alternative materials and systems to maximize performance and structural efficiency.

Specialty Engineering Services

Service website

Addresses highly specific construction-phase requirements, municipal ordinances, and complex structural safety conditions.

  • Excavation Shoring and Underpinning

    Design of temporary bracing, shoring, and underpinning systems to protect adjacent properties.

  • Philadelphia Municipal Engineering Services

    Compliance services for local facade inspection ordinances, adjacent property preconstruction surveys, and excavation planning.

  • Special Inspections Services

    Dedicated oversight as the Design Professional in Responsible Charge of Special Inspections.

Industries

Commercial · Education · Healthcare · Government · Industrial · Religious · Mixed-Use · Historic Preservation · Residential · Multifamily Residential · Hospitality · Sports & Recreation

Projects

LED Displays at Truist Park

Sports & Recreation · 2025 · Client: SNA Displays

Project details

Structural engineering and design services for the large-scale integrated LED display systems at the Atlanta Braves Stadium Complex.

Filigree House

Philadelphia, PA · Residential · 2023

Project details

Structural engineering and detailing for a customized residential design requiring integration of unique architectural elements.

Orndorf & Associates, Inc. - Engineering Firms