Grainger Consulting

Grainger Consulting has been a trusted leader in forensic fire protection engineering and forensic civil engineering since January 1985. Our expertise centers on fire protection system failures, including pipe systems, sprinkler components, fire pumps, fire separations, structural fireproofing, and kitchen hood systems. We serve as third-party fire rating listing agents for high-security fire-rated door systems and investigate personal injury cases tied to system failures. Our team provides forensic engineering services rooted in decades of design, construction code application, and specialty services. We offer fire and building code consulting, alternate means and methods analysis, and fire protection system design for suppression, detection, and smoke management systems. With a background in general construction and fire protection system management from the U.S.

Army Corps of Engineers and private contracting, we bring practical, field-tested solutions to complex challenges. Our work includes hydraulic failure analysis, microbiologically induced corrosion assessment, and fire alarm system evaluations. We pride ourselves on delivering expert witness testimony and forensic analysis that clients like Bruce Crawford have praised as excellent. Headquartered in Mesa, Arizona, we serve architects, engineers, law firms, insurance companies, and building owners nationwide. Our commitment to excellence and passion for problem-solving drives every project we undertake.