MCMASTER MECHANICAL
C-20 · DIAMOND BAR, CA 91765
State license
- Number
- 879152
- Type
- C-20
- Status
- active
- Expires
- 2027-02-28
- Source
- California CSLB
Location & contact
Trades
Google profile & public reviews
Live Google place card and public reviews for MCMASTER MECHANICAL
Matched to a Google place on 2026-09-02 at 100% name confidence. Rating is Google’s.
Interactive location map
20903 Ambushers St, Diamond Bar, CA 91765
Tiles © OpenStreetMap contributors, ODbL. Position from the matched Google place.
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Fieldaira community reviews
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Nearby contractors
Great-circle distance from MCMASTER MECHANICAL, computed from mapped positions.
Quick answers
Answered from the public license record — not from reviews or estimates.
›Is MCMASTER MECHANICAL licensed in California?
Yes. MCMASTER MECHANICAL holds license 879152 (C-20) recorded by California CSLB, valid to 2027-02-28. This listing is refreshed from that public register.
›What work does MCMASTER MECHANICAL do?
The register classifies MCMASTER MECHANICAL under HVAC. A contractor may do more than the license names — claiming the listing lets them correct it.
›How do I contact MCMASTER MECHANICAL?
Contact details are shown above. They were matched to this business from its public Google place, not supplied by MCMASTER MECHANICAL.
›Where is MCMASTER MECHANICAL located?
DIAMOND BAR, California, per the address on the license record.