Bestopedia Rankings

Best Plumbers in Colton, 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

Mr Plumber Company

Trust Score 96/100 — CLEAR license standing, bonded, workers’ comp current.

VERIFIED

  1. Mr Plumber Company

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  2. Luu Dong Phu

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  3. Avail Engineering

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  4. A C P Plumbing Enterprises Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  5. Drainexperts.com

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    95 / 100 Trust Score

  6. A Q S Mechanical Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    85 / 100 Trust Score

  7. Top Tier Plumbing and Air

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    84 / 100 Trust Score

  8. Long View Plumbing Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    81 / 100 Trust Score

  9. 911 Plumbing Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    78 / 100 Trust Score

  10. A & J Plumbing Company

    CLEAR license standing, bonded, workers’ comp not current.

    LISTED
    77 / 100 Trust Score

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

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