ADU CITIES Contractor Directory

Carl Maertens

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

☎ Call (626) 357-4664Verify this license at CSLB
CSLB license#601255
ClassificationsB — General Building · C-36 — Plumbing
Office of record228 East Greystone Avenue
Monrovia, CA 91016
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(626) 357-4664
Contractor bond$25,000 — Western Surety Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedAugust 24, 1990
License expiresAugust 31, 2028

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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.