Public CSLB records

Montalvo Concrete LLC

License #570320·Limited Liability·Fontana, San Bernardino County
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Summary

Montalvo Concrete LLC operating as a limited liability is licensed in California under CSLB number 570320. The license was first issued in 1989, putting the business at 37 years on the active CSLB roster. It carries a single CSLB classification: C-8 — Concrete Contractor. Records show an active surety bond on file with Platte River Insurance Company and active workers' compensation coverage from Wesco Insurance Company. The business is based in Fontana, in San Bernardino County, California.

Business Information
Address
4993 Thornberry Way
Fontana, CA 92336
License Details & Classifications
License Number
570320
Issued
Jun 9, 1989
Status
CLEAR
Expires
Apr 30, 2028
Entity
Limited Liability
Classifications
Financial & Insurance Coverage
Contractor Bond
Surety
Platte River Insurance Company
Bond Number
A270103348
Effective
Apr 10, 2026
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Wesco Insurance Company
Policy Number
WES3852022
Effective
Mar 20, 2026
Expires
Mar 20, 2027
Verified

This contractor is verified, with no adverse conditions in the current CSLB record.

License StatusActive
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 Montalvo Concrete LLC licensed in California?

Yes. Montalvo Concrete LLC holds California Contractors State License Board license number 570320. The license was first issued on June 9, 1989. It is valid through April 30, 2028.

What does Montalvo Concrete LLC specialize in?

Montalvo Concrete LLC is licensed for one CSLB classification: C-8 Concrete Contractor.

Where is Montalvo Concrete LLC headquartered?

Montalvo Concrete LLC is headquartered at 4993 Thornberry Way, Fontana, CA 92336, in San Bernardino County, California.

Does Montalvo Concrete LLC have an active surety bond on file with CSLB?

Yes. Montalvo Concrete LLC has an active California contractor surety bond filed with Platte River Insurance Company.

Does Montalvo Concrete LLC carry workers' compensation coverage?

Yes. Montalvo Concrete LLC carries active workers' compensation coverage through Wesco Insurance Company.

How do I verify Montalvo Concrete LLC's contractor license?

You can verify Montalvo Concrete LLC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=570320.

Activity Timeline
  1. License issuedJun 9, 1989
  2. WC coverage startsMar 20, 2026
  3. Bond activeApr 10, 2026
  4. WC expiresMar 20, 2027
  5. License expiresApr 30, 2028
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