Bestopedia Rankings

Best Plumbers in Newark, 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

Our Top Pick

Mathews Mechanical

Trust Score 100/100 — CLEAR license standing, bonded, workers’ comp current.

VERIFIED

  1. Mathews Mechanical

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  2. Above All Plumbing Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  3. Doc's Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  4. Veliz Plumbing Service

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  5. American Water Heater Service Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    95 / 100 Trust Score

  6. D C Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    94 / 100 Trust Score

  7. Grant's Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    91 / 100 Trust Score

  8. Mc Plumbing Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    89 / 100 Trust Score

  9. All Bay Plumbing Incorporated

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    89 / 100 Trust Score

  10. Bay Water Plumbing Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    87 / 100 Trust Score

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

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