Public CSLB records

Tetra Mechanical Services, C-20 HVAC Contractor in Simi Valley, CA

License #273330·Sole Owner·Simi Valley, Ventura County
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Summary

Tetra Mechanical Services operating as a sole owner holds an active California contractor license (CSLB #273330), valid through Aug 31, 2027. First issued in 1972, the license has been on the CSLB roster for 54 years. It carries 2 CSLB classifications: C-20 HVAC Contractor and C-38 Refrigeration Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Hartford Casualty Insurance Company. The business is based in Simi Valley, in Ventura County, California.

Business Information
Address
1107 Stanford Drive
Simi Valley, CA 93065
License Details & Classifications
License Number
273330
Issued
Jan 17, 1972
Status
CLEAR
Expires
Aug 31, 2027
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
100989715
Effective
Sep 1, 2025
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Hartford Casualty Insurance Company
Policy Number
72WECAB6414
Effective
Oct 14, 2023
Expires
Oct 14, 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 Tetra Mechanical Services licensed in California?

Yes. Tetra Mechanical Services holds California Contractors State License Board license number 273330, which is active and in good standing. The license was first issued on January 17, 1972. It is valid through August 31, 2027.

What does Tetra Mechanical Services specialize in?

Tetra Mechanical Services is licensed for 2 CSLB classifications: C-20 HVAC Contractor and C-38 Refrigeration Contractor.

Where is Tetra Mechanical Services headquartered?

Tetra Mechanical Services is headquartered at 1107 Stanford Drive, Simi Valley, CA 93065, in Ventura County, California.

Does Tetra Mechanical Services have an active surety bond on file with CSLB?

Yes. Tetra Mechanical Services has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Tetra Mechanical Services carry workers' compensation coverage?

Yes. Tetra Mechanical Services carries active workers' compensation coverage through Hartford Casualty Insurance Company.

How do I verify Tetra Mechanical Services's contractor license?

You can verify Tetra Mechanical Services's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=273330.

Activity Timeline
  1. License issuedJan 17, 1972
  2. WC coverage startsOct 14, 2023
  3. Bond activeSep 1, 2025
  4. WC expiresOct 14, 2026
  5. License expiresAug 31, 2027
Other contractors in Ventura County
California lien & payment resources

Working a California job with Tetra Mechanical Services, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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