OConnor Engineering, Inc. (OE) is best known for our expertise in the field of fire investigation. Our Certified Fire and Explosion Investigators (CFEIs) have over 25 years of experience investigating and determining the origin and cause of fires. We investigate fire damage of all sizes from wildfires spanning many acres to small appliance fires in the home.


  • Fire Cause and Origin Determination

  • Detailed Causation Reports

  • Drone Photography

OE specializes in forensic electrical engineering. Our licensed electrical engineer investigates and determines the cause of electrical failures. We handle evidence large and small, with industry-leading equipment to effectively examine even the most inconspicuous failures.


  • Analysis of Electrical Failures

  • Detailed Causation Reports

  • Product Failure and Subrogation Support


OE specializes in forensic mechanical engineering. Our licensed mechanical engineer investigates and determimes the cause of mechanical failures involving such systems as plumbing, fuel, automotive, and more.


  • Analysis of Mechanical Failures

  • Detailed Causation Reports

  • Stress Analysis

  • Product Defect Analysis

  • Automotive Systems Analysis

  • Materials Engineering


OE specializes in forensic structural engineering. Our licensed structural engineer investigates and determines the cause of structural failures and defects such as collapse, premature deterioration, breakage, and general failure of all types of structures.


  • Analysis of Structural Failures

  • Investigation of Structural Distress

  • Structural Damage Assessment

  • Fire Damage Assessment

  • Tree Impact Damage Assessment

  • Vehicle Impact Damage Assessment

  • Water Damage Investigation & Assessment


OE specializes in forensic civil engineering. Our licensed civil engineer investigates and determines the cause of damage and failure to public structures and systems.


  • Analysis of Pipeline Failures

  • Grading and Drainage Analysis

  • Pedestrian Safety Investigation (trip/slip & fall)

  • ADA Accessibility Analysis


OConnor Engineering’s range of services goes well beyond forensic engineering to provide you with full wraparound services in construction technology. Our licensed general contractor will evaluate property for construction defects and deficiencies and guide clients through the complete restoration process with cost consulting and project management services.


  • AutoCAD Restoration & Reconstruction Plans

  • Construction Defect Investigation

  • Building Code Compliance & Analysis

  • Water Intrusion Investigation

  • Standard of Care Evaluation

  • Water Restoration Project Management

  • Procedural Review for Water and Mold

  • Site Monitoring (Psychometric Documentation)

  • Project Management Services

  • Cost Consulting

Institute of Electrical and Electronics Engineers, the world's largest professional association for the advancement of technology.
National Fire Protection Agency (NFPA): The authority on fire, electrical and building safety
American Society of Civil Engineers: 1,200 Professional Engineers board certified by ASCE, recognizing advanced knowledge in specialty areas of engineering.
The International Association of Arson Investigators®, (IAAI®) is an international professional association of more than 8,000 fire investigation professionals, united by a strong commitment to suppress the crime of arson through professional fire investig
National Association of Fire Investigators (NAFI), a nonprofit association of Fire Investigation professionals dedicated to the education of fire investigators worldwide.
The California Conference of Arson Investigators is the oldest and the most active fire and arson investigator's association in the country, with over 1,100 members
ASME is a not-for-profit membership organization that enables collaboration, knowledge sharing, career enrichment, and skills development across all engineering disciplines, toward a goal of helping the global engineering community develop solutions to ben

Our highly-trained engineers proudly maintain memberships and certifications with each of the following organizations:

The Indoor Air Quality Association (IAQA) is dedicated to bringing practitioners together to prevent and solve indoor environmental problems for the benefit of customers and the public.

OConnor Engineering, Inc. has extensive experience, along with a range of licenses and certifications, to provide you with superior service in the many arenas of forensic engineering including fire investigation, forensic electrical engineering, forensic mechanical engineering, forensic structural engineering, and forensic civil engineering. We also provide other wraparound services including expert witness testimony, mediation and arbitration assistance, discovery assistance and evaluation, evidence storage, Auto CAD reconstruction and cost estimates to help you restore your damaged property quickly.






© 2019 OConnor Engineering, Inc. All rights reserved.



1172 National Drive, Suite 100

Sacramento, CA 95834