Contractor License Proof

J Castillo Construction

Licensed

Verified against CSLB on · View on CSLB

License details

License number
1025290
Status
Active
Classifications
B · General Building
Contractor bond
$25,000
Workers' comp
ExemptNo employees — not a red flag.
License term on file
March 29, 2017 – March 31, 2027

Business

  • (415) 948 3613 (CSLB public record)
  • 144 MABRY WAY, San Rafael, CA 94903Marin County

Are you J Castillo Construction? Claim this listing to manage it.

Claim this listing

Request a free quote

Tell us about your project and we'll connect you with licensed, verified California contractors.

By submitting, you agree we may share your request with relevant licensed contractors to help with your project. See our Privacy Policy.

Something wrong on this page? Report incorrect information.

Other General Building contractors in San Rafael

CLM Builders Inc

B · San Rafael, CA

Licensed

Verified August 4, 2026 · Bonded

Grant Gildroy Residential Renovations

B · San Rafael, CA

Licensed

Verified August 4, 2026 · Bonded

Trimmerfish Building & Repair

B · San Rafael, CA

Licensed

Verified August 4, 2026 · Bonded

Edwin Alberto Diaz

B · San Rafael, CA

Licensed

Verified August 4, 2026 · Bonded

Muldoon Construction Inc

B · San Rafael, CA

Licensed

Verified August 4, 2026 · Bonded

Baldenebro Construction Inc

B · San Rafael, CA

Licensed

Verified August 4, 2026 · Bonded

Browse all General Building contractors in San Rafael

What to check next

How to verify a California contractor licenseRed flags when hiring a contractorLicensed vs. bonded vs. insured — what's the difference?Risks of hiring an unlicensed contractor

Frequently asked questions

Is J Castillo Construction licensed in California?

Yes. J Castillo Construction holds an active California state contractor license (CSLB #1025290), verified against the CSLB public record on August 4, 2026.

What is J Castillo Construction's CSLB license number?

J Castillo Construction's California contractor license number is 1025290. Look that number up with the CSLB "Check a License" tool to confirm its current status against the public record yourself.

What kind of work is J Castillo Construction licensed for?

J Castillo Construction is classified under General Building (B) by the CSLB.

How do I verify J Castillo Construction's license myself?

Look up license #1025290 with the CSLB "Check a License" tool and compare the status, bond, and workers' compensation details against what's shown on this page. This page reflects the CSLB public record as of August 4, 2026.

Verify it yourself: How to verify a California contractor license · Look up #1025290 on CSLB

Checking more than one contractor? Verify another license.Verify a license

See an error in this record? Report incorrect information. Status reflects CSLB data as of the date shown above.