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Dittmann Plumbing INC: CSLB License #311169

Source: CSLB public data · Updated November 1, 2026 · CSLB's record

Active, no issues in CSLB file

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The license is active with no suspension on record, though classifications, bonds and secondary flags still deserve a look.

License details

License number: 311169
Primary status: CLEAR · what this means
Business type: Corporation
Issued: October 14, 1975 (51 years)
Expires: September 30, 2028
Classifications: C-36 Plumbing Contractor
Mailing address: 941 South Claremont Street, San Mateo, CA, 94402
Phone: (650) 343-2159

Workers' compensation

Type: Workers' Compensation Insurance
Insurer: Employers Preferred Insurance Company
Policy number: EIG538929502
Effective: November 16, 2025
Expires: November 16, 2026

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Contractor's bond

Surety: Atlantic Specialty Insurance Company
Bond number: 800233272
Amount: $25,000
Effective: April 11, 2026

Bond of qualifying individual

CSLB's public file lists no qualifier bond for this license. One isn't required when the qualifier owns at least 10% of the business, and some qualifier bonds appear only on CSLB's record.

Status history

No changes recorded since we began tracking this license on November 1, 2026. We compare every weekly CSLB file and log changes to status, bonds, workers' comp and classifications here.

Data: CSLB Public Data Portal, file dated November 1, 2026. Status can change at any time. Verify on CSLB's Instant License Check. This site is not a consumer reporting agency under the FCRA; don't use it for employment, credit, insurance or housing decisions about an individual.