Na Seon Joo, B General Building Contractor in Los Angeles, CA
Na Seon Joo operating as a sole owner holds an active California contractor license (CSLB #1061340), valid through Dec 31, 2027. First issued in 2019, the license has been on the CSLB roster for 7 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 Los Angeles, in Los Angeles County, California.
- License Number
- 1061340
- Issued
- Dec 13, 2019
- Status
- CLEAR
- Expires
- Dec 31, 2027
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 64899136
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Nov 7, 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 Na Seon Joo licensed in California?
Yes. Na Seon Joo holds California Contractors State License Board license number 1061340, which is active and in good standing. The license was first issued on December 13, 2019. It is valid through December 31, 2027.
What does Na Seon Joo specialize in?
Na Seon Joo is licensed for one CSLB classification: B General Building Contractor.
Where is Na Seon Joo headquartered?
Na Seon Joo is headquartered at 4001 Wilshire Blvd,f-272, Los Angeles, CA 90010, in Los Angeles County, California.
Does Na Seon Joo have an active surety bond on file with CSLB?
Yes. Na Seon Joo has an active California contractor surety bond filed with Western Surety Company.
Does Na Seon Joo carry workers' compensation coverage?
Na Seon Joo reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Na Seon Joo's contractor license?
You can verify Na Seon Joo's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1061340.
- License issuedDec 13, 2019
- Bond activeJan 1, 2023
- WC coverage startsNov 7, 2025
- License expiresDec 31, 2027
- Cyber Construction INC#1118573Northridge·A General Engineering Contractor
- C W Driver Incorporated#102Pasadena·B General Building Contractor
- Pacific Home Builders INC#45839Rolling Hills Estates·B General Building Contractor
- Electro Construction CORP#95881Altadena·B General Building Contractor
- Oltmans Construction CO#86393Whittier·A General Engineering Contractor
- Nicholson Mark#111289Malibu·B General Building Contractor
- In2uitive Builders LLC#112760El Segundo·B General Building Contractor
- Darrow Heating and Air Conditioning CORP#114301North Hollywood·B General Building Contractor
Working a California job with Na Seon Joo, 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 Na Seon Joo? Claim or correct this profile