Warm-Air Heating, Ventilating and Air-Conditioning contractors in Altadena, California
9 contractors hold a clear C-20 license in Altadena with current coverage.
Clear and covered 9
9 listed
- H & H MECHANICAL INCClear
- HOWE MICHAEL DClear
- SIMCO MECHANICAL INCClear
Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly file. Always confirm at cslb.ca.gov before signing a contract.