Public CSLB records

Air Conditioning & Heating Mechanical Masters, C-20 HVAC Contractor in Northridge, CA

License #344739·Sole Owner·Northridge, Los Angeles County
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Summary

Air Conditioning & Heating Mechanical Masters operating as a sole owner holds an active California contractor license (CSLB #344739), valid through Feb 29, 2028. First issued in 1977, the license has been on the CSLB roster for 49 years. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with North River Insurance Company (the) and a previously-filed workers' compensation policy with Benchmark Insurance Company that is no longer active. The business is based in Northridge, in Los Angeles County, California.

Business Information
Address
18530 Parthenia St
Northridge, CA 91324
License Details & Classifications
License Number
344739
Issued
Oct 14, 1977
Status
CLEAR
Expires
Feb 29, 2028
Entity
Sole Owner
Classifications
Financial & Insurance Coverage
Contractor Bond
Surety
North River Insurance Company (the)
Bond Number
04CF613980
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Benchmark Insurance Company
Policy Number
99WC0000282201
Effective
Sep 11, 2025
Expires
Sep 11, 2026
Alert

This contractor has a compliance issue in its public CSLB record:

  • No active workers' comp on file
License StatusActive
Contractor BondOn file
Workers' CompensationInactive

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

Frequently asked questions
Is Air Conditioning & Heating Mechanical Masters licensed in California?

Yes. Air Conditioning & Heating Mechanical Masters holds California Contractors State License Board license number 344739, which is active and in good standing. The license was first issued on October 14, 1977. It is valid through February 29, 2028.

What does Air Conditioning & Heating Mechanical Masters specialize in?

Air Conditioning & Heating Mechanical Masters is licensed for one CSLB classification: C-20 HVAC Contractor.

Where is Air Conditioning & Heating Mechanical Masters headquartered?

Air Conditioning & Heating Mechanical Masters is headquartered at 18530 Parthenia St, Northridge, CA 91324, in Los Angeles County, California.

Does Air Conditioning & Heating Mechanical Masters have an active surety bond on file with CSLB?

Yes. Air Conditioning & Heating Mechanical Masters has an active California contractor surety bond filed with North River Insurance Company (the).

Does Air Conditioning & Heating Mechanical Masters carry workers' compensation coverage?

Air Conditioning & Heating Mechanical Masters has a previously-filed workers' compensation policy with Benchmark Insurance Company that is no longer active.

How do I verify Air Conditioning & Heating Mechanical Masters's contractor license?

You can verify Air Conditioning & Heating Mechanical Masters's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=344739.

Activity Timeline
  1. License issuedOct 14, 1977
  2. Bond activeJan 1, 2023
  3. WC coverage startsSep 11, 2025
  4. WC expiredSep 11, 2026
  5. License expiresFeb 29, 2028
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California lien & payment resources

Working a California job with Air Conditioning & Heating Mechanical Masters, 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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