McMaster Mechanical
Verified against CSLB on · View on CSLB
License details
- License number
- 879152
- Status
- Active
- Classifications
- C-20 · Warm-Air Heating, Ventilating and Air-Conditioning
- Contractor bond
- $25,000
- Workers' comp
- Covered
- License term on file
- June 10, 2006 – February 28, 2027
Business
- (714) 497 0225 (CSLB public record)
- 20903 AMBUSHERS STREET, Diamond Bar, CA 91765Los Angeles County
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Frequently asked questions
Is McMaster Mechanical licensed in California?
Yes. McMaster Mechanical holds an active California state contractor license (CSLB #879152), verified against the CSLB public record on June 17, 2026.
What is McMaster Mechanical's CSLB license number?
McMaster Mechanical's California contractor license number is 879152. You can verify it directly on the CSLB website: https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=879152
What kind of work is McMaster Mechanical licensed for?
McMaster Mechanical is classified under Warm-Air Heating, Ventilating and Air-Conditioning (C-20) by the CSLB.
How do I verify McMaster Mechanical's license myself?
Look up license #879152 with the CSLB "Check a License" tool at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=879152. This page reflects the CSLB public record as of June 17, 2026.
See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.