Public CSLB records

A T C Mechanical LLC

License #1043760·Limited Liability·Concord, Contra Costa County
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Summary

A T C Mechanical LLC operating as a limited liability is licensed in California under CSLB number 1043760. The license was first issued in 2018, putting the business at 8 years on the active CSLB roster. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with Business Alliance Insurance Company and active workers' compensation coverage from Sunz Insurance Company. The business is based in Concord, in Contra Costa County, California.

Business Information
Address
1827 Gross Ln
Concord, CA 94519
License Details & Classifications
License Number
1043760
Issued
Aug 29, 2018
Status
CLEAR
Expires
Nov 30, 2026
Entity
Limited Liability
Classifications
Financial & Insurance Coverage
Contractor Bond
Surety
Business Alliance Insurance Company
Bond Number
G121010595760
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Sunz Insurance Company
Policy Number
WC04100430025
Effective
Oct 1, 2025
Expires
Oct 1, 2026
Verified

This contractor is verified, with no adverse conditions in the current CSLB record.

License StatusActive
Contractor BondOn file
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is A T C Mechanical LLC licensed in California?

Yes. A T C Mechanical LLC holds California Contractors State License Board license number 1043760. The license was first issued on August 29, 2018. It is valid through November 30, 2026.

What does A T C Mechanical LLC specialize in?

A T C Mechanical LLC is licensed for one CSLB classification: C-20 HVAC Contractor.

Where is A T C Mechanical LLC headquartered?

A T C Mechanical LLC is headquartered at 1827 Gross Ln, Concord, CA 94519, in Contra Costa County, California.

Does A T C Mechanical LLC have an active surety bond on file with CSLB?

Yes. A T C Mechanical LLC has an active California contractor surety bond filed with Business Alliance Insurance Company.

Does A T C Mechanical LLC carry workers' compensation coverage?

Yes. A T C Mechanical LLC carries active workers' compensation coverage through Sunz Insurance Company.

How do I verify A T C Mechanical LLC's contractor license?

You can verify A T C Mechanical LLC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1043760.

Activity Timeline
  1. License issuedAug 29, 2018
  2. Bond activeJan 1, 2023
  3. WC coverage startsOct 1, 2025
  4. WC expiresOct 1, 2026
  5. License expiresNov 30, 2026
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