Stinson Mechanical Contractors, B General Building Contractor in Long Beach, CA
Stinson Mechanical Contractors operating as a sole owner holds an active California contractor license (CSLB #703172), valid through Feb 28, 2027. First issued in 1995, the license has been on the CSLB roster for 31 years. It carries 2 CSLB classifications: B General Building Contractor and C-36 Plumbing Contractor. Records show an active surety bond on file with Western Surety Company and active workers' compensation coverage from Employers Assurance Company. The business is based in Long Beach, in Los Angeles County, California.
- License Number
- 703172
- Issued
- Feb 28, 1995
- Status
- CLEAR
- Expires
- Feb 28, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67395591
- Effective
- May 8, 2025
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Employers Assurance Company
- Policy Number
- EIG582597701
- Effective
- Dec 23, 2025
- Expires
- Dec 23, 2026
This contractor is verified, with no adverse conditions in the current CSLB record.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Stinson Mechanical Contractors licensed in California?
Yes. Stinson Mechanical Contractors holds California Contractors State License Board license number 703172, which is active and in good standing. The license was first issued on February 28, 1995. It is valid through February 28, 2027.
What does Stinson Mechanical Contractors specialize in?
Stinson Mechanical Contractors is licensed for 2 CSLB classifications: B General Building Contractor and C-36 Plumbing Contractor.
Where is Stinson Mechanical Contractors headquartered?
Stinson Mechanical Contractors is headquartered at 1452 Alamitos Avenue, Long Beach, CA 90813, in Los Angeles County, California.
Does Stinson Mechanical Contractors have an active surety bond on file with CSLB?
Yes. Stinson Mechanical Contractors has an active California contractor surety bond filed with Western Surety Company.
Does Stinson Mechanical Contractors carry workers' compensation coverage?
Yes. Stinson Mechanical Contractors carries active workers' compensation coverage through Employers Assurance Company.
How do I verify Stinson Mechanical Contractors's contractor license?
You can verify Stinson Mechanical Contractors's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=703172.
- License issuedFeb 28, 1995
- Bond activeMay 8, 2025
- WC coverage startsDec 23, 2025
- WC expiresDec 23, 2026
- License expiresFeb 28, 2027
- Hamm L M INC#171598San Gabriel·B General Building Contractor
- General Installation Company#151839Gardena·B General Building Contractor
- Kahn Air Conditioning INC#206552Van Nuys·B General Building Contractor
- Nadar INC#214554Pasadena·A General Engineering Contractor
- Darrow Heating and Air Conditioning CORP#114301North Hollywood·B General Building Contractor
- Acco Engineered Systems#120696Pasadena·A General Engineering Contractor
- Smith Roy E Plumbing CO INC#179873Los Angeles·C-16 Fire Protection Contractor
- Brandel Don Plumbing INC#176778Paramount·A General Engineering Contractor
Working a California job with Stinson Mechanical Contractors, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Stinson Mechanical Contractors? Claim or correct this profile