Diamond Air Services INC

Based in Ontario, San Bernardino County, Diamond Air Services INC holds California contractor license #1047483, classified B (General Building, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C43 Sheet Metal). The license was active and clear when this listing was compiled.

HVAC contractors carry the C-20 classification, which covers equipment replacement, duct systems, and the airflow and combustion venting that make them work safely.

Working in the Inland Empire: The region sits between the San Andreas and San Jacinto fault systems, so seismic requirements are woven through the building code here in ways they are not everywhere.

Before you hire any hvac or air conditioning contractor: Ask whether the duct system is being tested. California’s Title 24 energy code requires duct leakage testing on many change-outs, and leaky ducts waste a large share of what the equipment produces.

License status can change at any time. Confirm license #1047483 is current, and check bond and workers’ compensation coverage, using the CSLB license lookup before signing a contract or paying a deposit.

This profile was compiled from California State License Board public records and is unclaimed — Diamond Air Services INC has not added its own details. Are you the owner? Claim this listing to add photos, services and a description of your work, or contact us to have it removed.