Field-tested plumbing judgment for cases where the facts matter.
Expert witness and forensic consulting from a licensed master plumber with 30+ years of hands-on residential and commercial experience across Arizona and Colorado.
Independent plumbing expertise for complex cases and projects
I work with attorneys, insurers, public adjusters, contractors, property owners, and other parties requiring independent plumbing expertise. My analysis is grounded in field experience, code requirements, system performance, and clear documentation.
Expert Witness & Forensic Consulting
Independent analysis of standard of care, construction defects, plumbing system failures, water damage causation, gas line issues, installation practices, and plumbing code compliance.
Learn more →Qualifying Party (QP) Services
Qualifying party services and licensing support for plumbing businesses operating within the Arizona CR-77 residential and commercial plumbing classification, including solar.
Learn more →Trade & Business Consulting
Project review, installation assessment, contractor mentoring, homeowner and buyer advisory, operational guidance, and technical training for plumbing professionals.
Learn more →A straightforward, three-step process
Initial Consultation
Discuss the case, project, scope, deadlines, and potential conflicts.
Document and Site Review
Review available records, plans, photographs, reports, code requirements, and physical conditions.
Findings and Support
Provide clear findings, written documentation, consulting support, and testimony when required.
30+ years, field-proven
Spannagel Trade Consulting is an independent plumbing consulting practice led by Chris Spannagel. Chris founded his first Arizona plumbing company in 2007 and operated licensed plumbing businesses for nearly two decades — direct experience in the field and in the business, licensing, and compliance side of the trade. He is the qualifying individual associated with Arizona ROC license #366924, CR-77 classification.
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