Bestopedia Rankings

Best Plumbers in Pinon Hills, California

Ranked by the Bestopedia Trust Score, drawn from verified CSLB license, bond, and workers’-comp records. Rankings are earned — never for sale.

Last updated July 8, 2026

  1. Advanced Vacuum Plumbing Systems

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  2. Viking Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  3. Patterson Ronald Lee

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    88 / 100 Trust Score

  4. Gmpi LLC

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    82 / 100 Trust Score

noun /best-oh-PEE-dee-uh/

a curated ranking of the best in any category, based on independent review.