ADU CITIES Contractor Directory

E R Block Plumbing

Also listed as: E R Block Plumbing Inc

● Active — license status verified against CSLB public data as of November 6, 2026

CSLB license#675567
ClassificationsC-36 — Plumbing
Office of record10910 Hole Ave
Riverside, CA 92505
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(951) 687-4011
Contractor bond$25,000 — Atlantic Specialty Insurance Company
Workers' comp (CSLB record)Workers' Compensation Insurance — Omaha National Casualty Company
Business typeCorporation
License issuedAugust 17, 1993
License expiresAugust 31, 2027

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Data source: CSLB public records as of November 6, 2026. License status can change at any time — verify live at CSLB before signing a contract.