JBCI is a structural engineering firm based in Philadelphia.  We focus on rehabilitating existing buildings and structures and designing new ones that last.  We are also well versed in failure analysis/forensic engineering and additions and alterations.  We’ve been in business for more than 50 years and in that time have completed thousands of projects for corporate, governmental, educational, institutional and developer clients.  JBCI aids clients in the maintenance of property investment and the protection of life safety.  Our staff is involved in all phases and what sets us apart are our established relationships, reliability, and response with our Clients. We are a certified Small Business Enterprise (SBE) in Pennsylvania and New Jersey.


To create an inspiring work environment and supportive corporate culture as the key to advancing both work/life balance and intensive teamwork that results in unparalleled engineering solutions and happy clients.


Our past has shaped who we are today, and to meet tomorrow’s challenges, we will recognize our people as initiators of positive change. They are our most valuable asset and represent our best future. We will heed industry innovation, adopting new techniques and technology to remain our clients’ first choice for intelligent and adaptive engineering solutions.



  • 2019 Delaware Valley Association of Structural Engineers (DVASE) Excellence in Structural Engineering Award for Princeton University Nassau Hall Cupola Restoration
  • 2017 Zweig Group Fast Growth Award
  • 2017 ICRI Award of Merit in the Water Structures category for Carnegie Lake Dam for Princeton University
  • 2017 Preservation Alliance of Greater Philadelphia Grand Jury Award for Renovation of Park Towne Place Museum District Residences
  • 2017 Preservation Alliance of Greater Philadelphia Grand Jury Award for Renovation of Mansion Building at the Academy of Notre Dame de Namur
  • 2017 DVASE Excellence in Engineering Award for Carnegie Lake Dam for Princeton University


  • American Concrete Institute (ACI)
  • American Institute of Steel Construction (AISC)
  • American Society of Civil Engineers (ASCE)
  • Association for Preservation Technology International – Delaware Valley (APTI)
  • Community Design Collaborative (CDC)
  • Delaware Valley of Structural Engineers (DVASE)
  • Healthcare Facilities Management Association of New Jersey (HFMA)
  • Greater Philadelphia Condominium Managers Associations (GPCMA)
  • International Code Council (ICC)
  • International Concrete Repair Institute (ICRI)
  • International Facilities Management Association – New Jersey (IFMA)
  • New Jersey Association of Physical Plant Administrators (NJAPPA)
  • National Council of Structural Engineers Association (NCSEA)

Meet The Team

Allen Roth, PE


Allen Roth, PE joined JBCI as a Project Engineer in 1984 and advanced to Vice President in 1992. In 2015, Mr. Roth assumed the responsibilities of President. His experience includes structural design and analysis of reinforced concrete, structural steel, masonry, and light gauge steel of both new and existing structures. However, his expertise is in the field of building envelope, water abatement and building technology. He has been the Project Manager for design, documentation, and construction administration for the Structural Condition Evaluation and Repair and Building Façade projects.

Joseph Philips, PE


Joseph “JP” Philips, PE joined the firm as a Project Engineer in 1993. His professional experience ranges from the design of new structures to the repair and restoration of existing structures. He has been the Project Manager for design, documentation and construction administration on rehabilitation projects, structural and exterior façade investigations, parking garage investigations and forensic studies. Most recently, he was promoted to Director of Engineering in 2011.

Jessica Clifford, PE


Jessica Clifford, P.E. is a Principal with JBCI, a consulting engineering firm serving the Delaware Valley specializing in building envelopes and structures.  Ms. Clifford graduated from Drexel University with a B.S. in Architectural Engineering and joined JBCI in 2006.  Over the past 13 years she has developed an expertise in building facades and a passion for historic preservation.  She brings extensive knowledge and professionalism to every client relationship and continues to manage many of the firm’s larger critical projects.  She lives in Ardmore, Pennsylvania with her family and spends her free time chasing around her two boys.

Erik Villari, PE


Erik joined JBCI in 2006 and has since advanced from Project Engineer to Project Manager, to his current position of Principal, where he has taken on a leadership role to aid in the development of younger engineers. He is licensed in New Jersey, Pennsylvania, and New York, and continues to pursue licensure in additional states.  During his time at JBCI, Erik has focused on existing structures, with work ranging from assessment and repairs, to large-scale renovations.  Erik is always looking to expand his knowledge and develop new and customized solutions to the unique problems found when dealing with older and historic structures. Erik lives with his wife and dog in Collingswood, New Jersey.

Diane Goschler, EIT

Marketing and Business Development Manager

Diane serves as a member of our Leadership Team and spearheads JBCI’s business development efforts.  Her particular expertise in engineering assessments, failure analysis, and historical preservation design. She has managed condition surveys, due diligence reports, project specifications, and maintenance programs for our façade clients. She also has a deep understanding of waterproofing and concrete and masonry consulting including garage, balcony, and plaza deck repair, masonry facade and historic restorations.

Colleen Boulden, EIT

Senior Project Manager

Colleen Boulden, EIT began her career interning with our firm before entering her senior year at the University of Delaware. Upon graduating in 2009, she joined our firm as a Project Engineer. She has experience in façade and building envelope assessment and repair, waterproofing, and concrete repair including balcony and garage repair.

Michael Salera, PE

Senior Project Manager

Michael Salera, PE, upon graduation from Villanova University, joined our firm in 2012.  He has gained extensive experience in the structural analysis and design plus façade assessments.  He has analyzed many building materials including, reinforced concrete, structural steel, limestone, brick masonry, terra cotta and cold form steel.  He has assisted in facade inspections and performing construction administration services on projects.

Ken Destefano, EIT

Project Engineer

Ken Destefano, EIT joins JBCI after completing a Bachelor of Science in Civil Engineering and Masters of Science in Civil Engineering from Johns Hopkins University. He is a familiar face as he was an intern at JBCI for the summer of 2015 and 2016 while completing his degrees. He recently became an Engineer in Training (EIT).


Ken played on the Men’s soccer team for four years at Johns Hopkins and continues to play recreationally in Philadelphia. He completed his first Triathlon last fall and plans to take on another this summer. All at JBCI are looking forward to cheering him on!

Austin Papp, EIT

Project Engineer

Austin Papp, EIT joins JBCI after working as a structural engineer for a global engineering firm focusing on commercial and large scale residential design projects. Austin completed a Bachelor of Science in Civil and Environment Engineering at Rowan University and primarily focused his studies on concrete, steel, wood, and gauge metal. Austin is an avid golfer and enjoys playing 18 holes on the weekend and taking golf trips with friends. He also has a strong travel bug and is working on a bucket list of exciting and unique US and international destinations.

Tyler Logar, EIT

Project Engineer

Tyler Logar joins JBCI after completing a Bachelor of Science in Civil ​and Environment ​Engineering at ​Rowan University. ​His studies focused on structural engineering, specifically reinforced concrete, steel design, and earth retaining systems analysis and design. During his time at Rowan, he served as captain of the men’s soccer team for three years. ​

Tyler is an all-around Philly sports fan and he enjoys spending time with family and friends to watch the games. GO EAGLES! ​Camping and traveling both nationally and internationally are also hobbies when he isn’t working.​ He’s taking suggestions for his next trip. ​

Robert Garneau, EIT

Project Engineer

Robert “Bobby” Garneau joins JBCI after completing Bachelors of Science degrees in Civil and Architectural Engineering at Drexel University. His studies focused on structural engineering, with interests in forensic structural analysis, green building technologies, and architectural history.

Outside of the classroom, Bobby enjoyed sports the most; playing intramural flag football, volleyball, and softball. He also worked as a Building Manager for the Dakalaskas Athletic Center. He seeks to further his education and has earned credentials as an Engineer In Training (EIT) and a LEED Green Associate.

Tina Brooks

Executive Assistant

John McCardell, Jr

John joined the firm in 2016 as JBCI’s newest Controller. He has extensive experience in payroll, financial metrics, reporting, and forecasting and plays an integral roll in formulating data and reports used for strategic decision-making. He received his Bachelors of Science in Accounting and currently working towards an MBA at Temple University. Originally from Southern New Jersey, John lives in Brewerytown with his wife & 2 dogs (Leo & Lucy) and on occasion serves as a wedding DJ at some of the City’s premier venues.