Bestopedia Rankings

Best Plumbers in Newcastle, 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. Sierra Septic Service & Supply Co

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  2. Hotco the Hot Water Heater Company Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  3. Subenko Mark Plmg

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    92 / 100 Trust Score

  4. P6 Commercial Maintenance

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    89 / 100 Trust Score

  5. Euerle Byrd Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    86 / 100 Trust Score

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

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