Bestopedia Rankings

Best Plumbers in Irwindale, 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. Los Angeles Plumbing & Backflow Testing Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  2. Good News Plumbing & Drain Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    99 / 100 Trust Score

  3. Roelle Michael G Plumbing and Fire Sprinkler Contractor

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  4. Roelle Michael G Plumbing & Fire Sprinkler Contractor Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

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

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