Bestopedia Rankings

Best Plumbers in Glendora, 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. Cypress Heating & Air Conditioning

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  2. Glendora Plumbing & Heating Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  3. Cypress Heating & Air Conditioning Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  4. Count on Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  5. Cappello Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    97 / 100 Trust Score

  6. Preferred One Plumbing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    97 / 100 Trust Score

  7. Verholtz Construction Services

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    97 / 100 Trust Score

  8. Ricci Jack

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  9. Positive Plumbing Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  10. Pipe Master's Plumbing

    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.