ADU CITIES Contractor Directory

Blankenbiller Richard

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

CSLB license#990648
ClassificationsA — General Engineering
Office of record120 East Duarte Road
Monrovia, CA 91016
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(626) 447-7000
Contractor bond$25,000 — American Contractors Indemnity Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedFebruary 14, 2014
License expiresFebruary 29, 2028

Is this your business? Claim this listing to enhance it with your website, photos, and project details.

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.