Bestopedia Rankings

Best Plumbers in Montclair, 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. Klaus & Sons Plumbing Heating & Air Conditioning

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  2. Chava's Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  3. Sweetwater Plumbing Industries Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  4. Ruben Garcia Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  5. Torres Wilfredo

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  6. Classic Construction and Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    95 / 100 Trust Score

  7. 23 1/2 Hrs S O S Plumbing Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    94 / 100 Trust Score

  8. Plumbers Connection Inc the

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    91 / 100 Trust Score

  9. Quality Conservation Services

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    84 / 100 Trust Score

  10. Johnson Greg Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    84 / 100 Trust Score

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

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