Bestopedia Rankings

Best HVAC Contractors 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 5, 2026

  1. Klaus & Sons Plumbing Heating & Air Conditioning

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  2. Ogg M A Heating & Air Conditioning Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  3. West-Tech Mechanical Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  4. Best Electric and Air

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  5. Sheng-Tien Tsai

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    94 / 100 Trust Score

  6. B and N Heating and Air

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    92 / 100 Trust Score

  7. Indoor Neutralization Designated Operations HVAC

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    86 / 100 Trust Score

  8. Hometown Mechanical Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    86 / 100 Trust Score

  9. Talee Inc

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    85 / 100 Trust Score

  10. Quality Conservation Services

    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.