ADU CITIES Contractor Directory

Mueller Engineering

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

☎ Call (619) 569-9523Verify this license at CSLB
CSLB license#1078132
ClassificationsA — General Engineering
Office of record615 Harbison Canyon Rd
El Cajon, CA 92019
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(619) 569-9523
Contractor bond$25,000 — American Contractors Indemnity Company
Workers' comp (CSLB record)Exempt
Business typeSole Owner
License issuedJuly 14, 2021
License expiresJuly 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.