Flowline Concrete, C-8 Concrete Contractor in San Bernardino, CA
Flowline Concrete operating as a sole owner holds California contractor license #1016871, which is currently expired (lapsed Aug 31, 2026) and not valid to contract until it is renewed. First issued in 2016, the license has been on the CSLB roster for 10 years. It carries a single CSLB classification: C-8 — Concrete Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from State Compensation Insurance Fund. The business is based in San Bernardino, in San Bernardino County, California.
- License Number
- 1016871
- Issued
- Aug 3, 2016
- Status
- CLEAR
- Expires
- Aug 31, 2026
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 101019803
- Effective
- Dec 12, 2025
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- State Compensation Insurance Fund
- Policy Number
- 9391958
- Effective
- Dec 13, 2025
- Expires
- Dec 13, 2026
This contractor has a compliance issue in its public CSLB record:
- License expired
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Flowline Concrete licensed in California?
Flowline Concrete previously held California Contractors State License Board license number 1016871, but the license expired on August 31, 2026 and is not currently valid. It was first issued on August 3, 2016.
What does Flowline Concrete specialize in?
Flowline Concrete is licensed for one CSLB classification: C-8 Concrete Contractor.
Where is Flowline Concrete headquartered?
Flowline Concrete is headquartered at 1890 Herrington Ave, San Bernardino, CA 92411, in San Bernardino County, California.
Does Flowline Concrete have an active surety bond on file with CSLB?
Yes. Flowline Concrete has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Flowline Concrete carry workers' compensation coverage?
Yes. Flowline Concrete carries active workers' compensation coverage through State Compensation Insurance Fund.
How do I verify Flowline Concrete's contractor license?
You can verify Flowline Concrete's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1016871.
- License issuedAug 3, 2016
- Bond activeDec 12, 2025
- WC coverage startsDec 13, 2025
- License expiredAug 31, 2026
- WC expiresDec 13, 2026
- Gima Construction#757160Rialto·B General Building Contractor
- Romans James R INC#755833Big Bear Lake·B General Building Contractor
- M & A Industrial Concrete INC#759481Fontana·C-8 Concrete Contractor
- Lifestyle Landscapes INC#758573Upland·A General Engineering Contractor
- D M Contracting INC#771187Colton·A General Engineering Contractor
- Aleka Concrete#771400Fontana·C-8 Concrete Contractor
- Professional Landscape & Irrigation CO#775392Rancho Cucamonga·C-8 Concrete Contractor
- Wright James Masonry Incorporated#774529Alta Loma·C-8 Concrete Contractor
Working a California job with Flowline Concrete, 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 Flowline Concrete? Claim or correct this profile