Bestopedia Rankings

Best HVAC Contractors in Arcata, 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

Our Top Pick

O & M Industries

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

VERIFIED

  1. O & M Industries

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  2. Air Tight

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  3. California Heating

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  4. Foi

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    100 / 100 Trust Score

  5. Humboldt Mechanical Solutions

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    98 / 100 Trust Score

  6. Scurfield Electric Heating & Solar

    CLEAR license standing, bonded, workers’ comp current.

    VERIFIED
    88 / 100 Trust Score

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

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