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Mike Diamond Plumbing Heating & Air Conditioning: CSLB License #399170
Source: CSLB public data · Updated November 1, 2026 · Official CSLB record
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The license is active with no suspension on record, though classifications, bonds and secondary flags still deserve a look.
License details
- License number
- 399170
- Primary status
- CLEAR · what this means
- Business type
- Limited Liability
- Issued
- February 17, 1981 (45 years)
- Reissued
- June 25, 2026
- Expires
- June 30, 2028
- Classifications
- C-10 Electrical Contractor
C-16 Fire Protection Contractor
C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor
C-36 Plumbing Contractor
C-42 Sanitation System Contractor - Mailing address
- Po Box 4982, Culver City, CA, 90231
- Phone
- (310) 838 0408
Workers' compensation
- Type
- Workers' Compensation Insurance
- Insurer
- Security National Insurance Company
- Policy number
- SWC1618842
- Effective
- January 1, 2026
- Expires
- January 1, 2027
Confirm coverage with CSLB's insurer search. How to check workers' comp.
Contractor's bond
- Surety
- Merchants Bonding Company (mutual)
- Bond number
- 101897527
- Amount
- $25,000
- Effective
- June 25, 2026
Bond of qualifying individual
- Surety
- Great American Insurance Company
- Bond number
- F517546
- Amount
- $100,000
- Effective
- June 25, 2026
Status history
No changes recorded since we began tracking this license on November 1, 2026. We compare every weekly CSLB file and log changes to status, bonds, workers' comp and classifications here.
Related
- Licensed electricians in Culver City
- Licensed plumbers in Culver City
- Licensed contractors in Culver City
- Contractors in Los Angeles County
- What "CLEAR" means
- How to check a contractor license
Data: CSLB Public Data Portal, file dated November 1, 2026. Status can change at any time. Verify on CSLB's Instant License Check. This site is not a consumer reporting agency under the FCRA; don't use it for employment, credit, insurance or housing decisions about an individual.