ADU CITIES Contractor Directory

Porter Boiler Service Inc

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

☎ Call (562) 426-2528Verify this license at CSLB
CSLB license#239280
ClassificationsB — General Building · C-4 — Boiler, Hot-Water Heating and Steam Fitting
Office of record1166 E 23RD Street
Signal Hill, CA 90755
Address as listed in the CSLB record — the office of record, not a service-area claim.
Phone (CSLB record)(562) 426-2528
Contractor bond$25,000 — Ohio Casualty Insurance Company (the)
Workers' comp (CSLB record)Workers' Compensation Insurance — Insurance Company Of The West
Business typeCorporation
License issuedNovember 15, 1965
License expiresDecember 31, 2027

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.