Expertise
- - Services
    Engineering
    
    Bridge Engineering
    
    Construction Engineering
    
    Fire Protection and Life Safety
    
    Geotechnical and Geological
    
    Heavy Movable Structures
    
    Materials Engineering
    
    Metallurgy and Applied Mechanics
    
    Seismic Engineering
    
    Structural Engineering
    
    Architecture
    
    Architectural Finishes and Materials
    
    Building Enclosures
    
    Building Science
    
    Enclosure Commissioning
    
    Historic Preservation
    
    Laboratory
    
    Materials Evaluation and Testing
    
    Product Development, Evaluation, and Testing
    
    Research
    
    Structural Load and Fatigue Testing
    
    Field
    
    Building Enclosure Testing
    
    Condition Evaluation
    
    Construction Observation and Troubleshooting
    
    Difficult Access and Drone Survey
    
    Instrumentation and Monitoring
    
    Nondestructive Evaluation
    
    Structural Load Testing
    
    Forensics
    
    Failure and Damage Investigation
    
    Litigation Consulting
    
    Design
    
    Design-Build
    
    Design Review
    
    Repair and Rehabilitation
    
    Systems and Components
  - Markets
    Clients from markets and industries across the built world rely on our interdisciplinary team of engineers, architects, and materials scientists to develop an all-around understanding of their needs, provide expert consultation on available options, and develop solutions that deliver lasting value.
    Buildings
    
    Construction
    
    Energy
    
    Industrial
    
    Infrastructure
    
    Insurance
    
    Testing and Research
  - Laboratories
    Our extensive in-house laboratory and testing capabilities are second to none. With laboratories in our Austin and Cleveland offices as well as a 70,000-square-foot state-of-the-art testing and applied research facility at our Northbrook, Illinois, headquarters, we have the advanced testing and forensic capabilities to solve virtually any problem related to structures, construction materials, or manufactured components.
  - People
    We strive to make a positive difference in the world by consistently setting the standard in every key aspect of our business, starting with the extraordinary people we employ. Connect directly with an expert on our team.
Projects
- - SEARCH FOR
    WJE PROJECTS
    Our team has investigated, tested, and innovated on more than 200,000 projects involving almost every type of construction material, structural system, and manufactured component. We take a hands-on, empirical, and investigative approach to every assignment. Although materials, technologies, and structures change, our basic philosophy doesn’t. Founder Jack Janney’s advice to “ask the structure” continues to guide our project work today.
Knowledge
- - Articles
    We’re passionate about our work and believe it is our responsibility to share our experiences and lessons learned for the enrichment of our clients and the advancement of our industry. We hope you learn something new that helps you better understand and address a challenge you face in your own work.
  - Webinars
    We regularly host webinars on interesting topics and challenges related to the built world. We encourage you to search through our library for subjects of interest to you. Watch, listen, and share with others.
  - Research
    
    Building on more than sixty years of finding innovative solutions to construction-related problems, WJE recognizes the value of knowledge sharing and collaboration, not just among our employees but with our industry colleagues as well.
  - Videos
    Experience our capabilities, project work, laboratories, and company culture as told by our staff and clients in this selection of videos.
  - Websites
    Learn the “what” and “why” and “when” of facade and seismic ordinances in various cities throughout the United States, as well as our recent efforts with sustainable (low carbon) concrete.
    
    SustainableConcrete.com
    
    FacadeOrdinance.com
    
    SeismicOrdinances.com
Careers
- - Careers at WJE
    A career at WJE means working alongside industry gurus to solve the most significant, interesting, and challenging problems of the built world. Whether you'd bring years of experience to our team or you're just out of school, a career at WJE may be the right choice for you.
  - Job Openings
  - Benefits
  - FAQ
  - Mission, Vision,
    and Values
    Using a set of key principles to guide us, we aspire to consistently deliver practical, innovative, and technically sound solutions—to make a positive difference in the world by consistently setting the standard in every key aspect of our operations, starting with the people we employ, the expectations we have, and the environment we create.
Offices
- - OFFICES
    With hundreds of professionals in North America and Europe, WJE can respond quickly to assignments around the world. No matter where you are, we can help.
    AMERICAS
    
    Atlanta
    
    Austin
    
    Boston
    
    Chicago
    
    Cleveland
    
    Dallas
    
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    Doylestown
    
    Honolulu
    
    Houston
    
    Indianapolis
    
    Los Angeles
    
    Milwaukee
    
    Minneapolis
    
    New Haven
    
    New York
    
    Northbrook (Global HQ)
    
    Philadelphia
    
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    Portland
    
    Princeton
    
    Raleigh
    
    San Antonio
    
    San Diego
    
    San Francisco
    
    Seattle
    
    South Florida
    
    Washington, DC
    
    EUROPE
    
    London
About
- - Mission, Vision,
    and Values
    Using a set of key principles to guide us, we aspire to consistently deliver practical, innovative, and technically sound solutions—to make a positive difference in the world by consistently setting the standard in every key aspect of our operations, starting with the people we employ, the expectations we have, and the environment we create.
  - Our History
    Each year, our employees contribute their time, resources, and energy to a wide variety of organizations and events, seeking to make a difference. Our people work hard to leave their communities better than they found them.
  - Safety
    Commitment
    The most important thing in our business is the safety of our people. We strive for a safe, accident-free work environment through a dedicated and concerted effort by each and every individual.
  - Sustainable
    Solutions
    WJE is committed to sustainability in construction, applying a long-term lens to materials selection, performance testing, systems integration, repair design, and conservation.

NEWS | July 2, 2026

Manfred Kehrer Receives ASHRAE Distinguished Service Award

Manfred Kehrer, Senior Associate in our Northbrook headquarters office, has received the Distinguished Service Award from the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE), recognizing his “outstanding commitment to the Society through years of faithful service, professional involvement, and meaningful contributions to ASHRAE programs and activities.”

Since 2011, Manfred has been an active participant in ASHRAE Technical Committees 1.8 (Mechanical Systems Insulation), 1.12 (Moisture Management in Buildings), 4.4 (Building Materials and Building Envelope Performance), and Standard Project Committee 160, working to advance numerical calculation of heat and moisture transfer in building enclosures. In his work at WJE, Manfred has been integral to the development of our hygrothermal laboratory and computational fluid dynamics capability for analysis of building enclosures.

Founded in 1956, Wiss, Janney, Elstner Associates (WJE) is an interdisciplinary firm of engineers, architects, and materials scientists committed to helping clients solve, repair, and avoid problems in the built world. Supported by unparalleled laboratory and field-testing capabilities, our experts draw on more than seventy years of experience to deliver innovative and practical solutions grounded in deep technical expertise.

Ask the Structure and Solutions for the Built World are trademarks of Wiss, Janney, Elstner Associates, Inc.

© COPYRIGHT WISS, JANNEY, ELSTNER ASSOCIATES, INC., NORTHBROOK, ILLINOIS. ALL RIGHTS RESERVED.

Engineering

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Field

Forensics

Design

Buildings

Construction

Energy

Industrial

Infrastructure

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Testing and Research

SustainableConcrete.com

FacadeOrdinance.com

SeismicOrdinances.com

AMERICAS

EUROPE

NEWS | July 2, 2026

Manfred Kehrer Receives ASHRAE Distinguished Service Award

News Categories

SERVICES

MARKETS

Engineering

Architecture

Laboratory

Field

Forensics

Design

Buildings

Construction

Energy

Industrial

Infrastructure

Insurance

Testing and Research

SustainableConcrete.com

FacadeOrdinance.com

SeismicOrdinances.com

AMERICAS

EUROPE

NEWS | July 2, 2026

Manfred Kehrer Receives ASHRAE Distinguished Service Award

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SERVICES

MARKETS

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