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R-37 Plumbing Including Solar Contractors in Arizona

65 active R-37 licenses statewide as of 2026-04-03.

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Tucson (7)Phoenix (7)

Data source: Arizona Registrar of Contractors Posting List, updated 2026-04-03. This site republishes public record data for homeowner verification. We are not affiliated with AZ ROC.

Always verify license status directly on roc.az.gov before hiring. Pages generated with automated tooling from official CSV data.