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Dattilo's Mark Heating and Air Conditioning INC: CSLB License #543701
Source: CSLB public data · Updated November 1, 2026 · CSLB's 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
- 543701
- Primary status
- CLEAR · what this means
- Business type
- Corporation
- Full business name
- Mark Dattilo's Heating and Air Conditioning INC
- Issued
- October 7, 1988 (38 years)
- Reissued
- July 22, 2004
- Expires
- July 31, 2028
- Classifications
- C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor
- Mailing address
- 408 S Sierra Way, San Bernardino, CA, 92408
- Phone
- (909) 886-9055
Workers' compensation
- Type
- Workers' Compensation Insurance
- Insurer
- California Insurance Company
- Policy number
- 460016970123
- Effective
- June 1, 2026
- Expires
- June 1, 2027
Confirm coverage with CSLB's insurer search. How to check workers' comp.
Contractor's bond
- Surety
- Merchants Bonding Company (mutual)
- Bond number
- 101968442
- Amount
- $25,000
- Effective
- July 21, 2026
Bond of qualifying individual
CSLB's public file lists no qualifier bond for this license. One isn't required when the qualifier owns at least 10% of the business, and some qualifier bonds appear only on CSLB's record.
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 HVAC contractors in San Bernardino
- Licensed contractors in San Bernardino
- Contractors in San Bernardino 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.