Public CSLB records

Sterling Mechanical, C-20 HVAC Contractor in Oceanside, CA

License #1003161·Corporation·Oceanside, San Diego County
Download PDF
Owed money by Sterling Mechanical? File a 20-day preliminary notice to keep your lien rights.Send a notice
Summary

Sterling Mechanical operating as a corporation holds California contractor license #1003161, which is currently expired (lapsed Jul 31, 2026) and not valid to contract until it is renewed. First issued in 2015, the license has been on the CSLB roster for 11 years. It carries a single CSLB classification: C-20 — HVAC Contractor. Records show an active surety bond on file with Merchants Bonding Company (mutual) and active workers' compensation coverage from Markel Insurance Company. The business is based in Oceanside, in San Diego County, California.

Business Information
Address
5422 Rocking Horse Lane
Oceanside, CA 92057
License Details & Classifications
License Number
1003161
Issued
Apr 27, 2015
Status
CLEAR
Expires
Jul 31, 2026
Entity
Corporation
Classifications
Financial & Insurance Coverage
Contractor Bond
Surety
Merchants Bonding Company (mutual)
Bond Number
101513960
Effective
Jul 18, 2025
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Markel Insurance Company
Policy Number
MWC020680104
Effective
Oct 31, 2025
Expires
Oct 31, 2026
Alert

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

  • License expired
License StatusInactive / Expired
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 Sterling Mechanical licensed in California?

Sterling Mechanical previously held California Contractors State License Board license number 1003161, but the license expired on July 31, 2026 and is not currently valid. It was first issued on April 27, 2015.

What does Sterling Mechanical specialize in?

Sterling Mechanical is licensed for one CSLB classification: C-20 HVAC Contractor.

Where is Sterling Mechanical headquartered?

Sterling Mechanical is headquartered at 5422 Rocking Horse Lane, Oceanside, CA 92057, in San Diego County, California.

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

Yes. Sterling Mechanical has an active California contractor surety bond filed with Merchants Bonding Company (mutual).

Does Sterling Mechanical carry workers' compensation coverage?

Yes. Sterling Mechanical carries active workers' compensation coverage through Markel Insurance Company.

How do I verify Sterling Mechanical's contractor license?

You can verify Sterling Mechanical's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1003161.

Activity Timeline
  1. License issuedApr 27, 2015
  2. Bond activeJul 18, 2025
  3. WC coverage startsOct 31, 2025
  4. License expiredJul 31, 2026
  5. WC expiresOct 31, 2026
Other contractors in San Diego County
California lien & payment resources

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

Own Sterling Mechanical? Claim or correct this profile