Bestopedia Rankings

Best Roofers in San Dimas, 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

C & C Roofing

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

VERIFIED

  1. C & C Roofing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  2. Cabral Roofing & Waterproofing Corporation

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  3. American Services Group of California Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  4. M & M Construction Group the

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  5. P H Roofing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  6. Preferred Roofing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    96 / 100 Trust Score

  7. Ces Roofing

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    92 / 100 Trust Score

  8. Northwood Roofing Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    92 / 100 Trust Score

  9. Wiltshire Urethane Foam Company

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    91 / 100 Trust Score

  10. Homeowners Friend Roofing

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

    LISTED
    81 / 100 Trust Score

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

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