| A |
| Air Products & Services | 15735 Strathern Street, Panorama City | airproductsinc.com | | |
| B |
| Backflow Test Pros Los Angeles | 1150 South Olive Street, South Park | backflowtestpros.com | | |
| C |
| Candu Plumbing & Rooter | 22144 22144 Eccles Street, Canoga Park | canduplumbing.com | | |
| E |
| Expert Plumbing and Rooter, Inc | 7056 Gerald Avenue, Lake Balboa | expertplumbingrooter.com | | |
| F |
| Fast 24 Plumbing | 19205 Parthenia Street, Northridge | fast24plumbing.com | | |
| G |
| G&W Plumbing | Eagle Rock, no street on record | | | |
| Greg's Sewer & Drains | 8902 Murietta Avenue, Panorama City | gregsseweranddrains.com | | |
| H |
| Heflin & Son | 6212 West 87th Street, Westchester | | | |
| Helpful Plumbing | 2723 West Vernon Avenue, Leimert Park | helpfulplumbing.com | | |
| J |
| J-Co Plumbing and Boilernot edited since 2020 | 11142 Fleetwood Street, Sun Valley | | | |
| Jo-Mi Plumbing & Solar | 2011 Sawtelle Boulevard, Sawtelle | jo-miplumbing.com | | |
| John Riordan | Palms, no street on record | | | |
| M |
| Mike Diamond Plumbing, HVAC & Electrical | 11756 Victory Boulevard, Valley Glen | mikediamondservices.com | | |
| Mike Diamond Plumbing, HVAC & Electrical | 1900 North Cahuenga Boulevard, Hollywood | mikediamondservices.com | | |
| Mr. Speedy Rooter | 11755 Mayfield Avenue, Brentwood | mrspeedyrooter.com | | |
| My Drain Company Inc. | 13351 Riverside Drive, Sherman Village | mydraincompany.com | | |
| N |
| New Flow Plumbing Inc. | 6718 Katherine Avenue, Van Nuys | newflowplumbing.com | | |
| P |
| Porter Ranch Repiping | 19360 Rinaldi, Porter Ranch | integrityrepiping.com | | |
| R |
| Rick Camposnot edited since 2021 | Palms, no street on record | | | |
| Rooter Man Plumbing | Rancho Cascades, no street on record | | | |
| Rooters On Timenot edited since 2019 | 7726 Lasaine Ave, Lake Balboa | rootersontime.com | | |
| W |
| West Coastnot edited since 2016 | Palms, no street on record | | | |