Yoo Sung Kun, B General Building Contractor in La Crescenta, CA
Yoo Sung Kun operating as a sole owner holds an active California contractor license (CSLB #1001698), valid through Mar 31, 2027. First issued in 2015, the license has been on the CSLB roster for 11 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in La Crescenta, in Los Angeles County, California.
- License Number
- 1001698
- Issued
- Mar 5, 2015
- Status
- CLEAR
- Expires
- Mar 31, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67726371
- Effective
- Feb 15, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Feb 15, 2025
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Yoo Sung Kun licensed in California?
Yes. Yoo Sung Kun holds California Contractors State License Board license number 1001698, which is active and in good standing. The license was first issued on March 5, 2015. It is valid through March 31, 2027.
What does Yoo Sung Kun specialize in?
Yoo Sung Kun is licensed for one CSLB classification: B General Building Contractor.
Where is Yoo Sung Kun headquartered?
Yoo Sung Kun is headquartered at 3119 El Caminito, La Crescenta, CA 91214, in Los Angeles County, California.
Does Yoo Sung Kun have an active surety bond on file with CSLB?
Yes. Yoo Sung Kun has an active California contractor surety bond filed with Western Surety Company.
Does Yoo Sung Kun carry workers' compensation coverage?
Yoo Sung Kun reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Yoo Sung Kun's contractor license?
You can verify Yoo Sung Kun's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1001698.
- License issuedMar 5, 2015
- WC coverage startsFeb 15, 2025
- Bond activeFeb 15, 2026
- License expiresMar 31, 2027
- Nadar INC#214554Pasadena·A General Engineering Contractor
- Seidner Construction CO#214890Glendora·B General Building Contractor
- Padelford A J & Son INC#222840Artesia·B General Building Contractor
- Niesner Frank#227508Calabasas·B General Building Contractor
- Century Shower Door#196953Torrance·B General Building Contractor
- Holiday Carpet & Floor Covering INC#198116Van Nuys·B General Building Contractor
- Demello Wm P#198635North Hollywood·B General Building Contractor
- Los Angeles Air Conditioning INC#208872La Verne·B General Building Contractor
Working a California job with Yoo Sung Kun, 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 Yoo Sung Kun? Claim or correct this profile