M-23 MECHANICAL SYSTEMS
License
- Status
- CLEAR
- First issued
- November 1, 2021
- Expires
- November 30, 2027
- Entity
- Corporation
- Address of record
- 3470 FOSTORIA WY STE D, Danville, CA 94526
- Phone of record
- (925) 730 9020
Contractor bond
- Surety
- MERCHANTS BONDING COMPANY (MUTUAL)
- Bond number
- 101643381
- Amount
- $25,000
- Effective
- October 19, 2025
Workers’ compensation
- Carrier
- AMTRUST INSURANCE COMPANY
- Policy number
- KWC1445748
- Effective
- May 1, 2026
- Expires
- May 1, 2027
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 14 licensed warm-air heating, ventilating and air-conditioning contractors in Danville.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| CHAN ANGELA NGUYEN | Officer | November 1, 2021 | Current |
| CHAN EDMUND SIU YIN | Responsible Managing Officer/Chief Executive Officer/President | November 1, 2021 | Current |
Verified status badge
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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.