Best Licensed Septic Contractors in Los Angeles, CA
13 septic companies registered in Los Angeles hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.
- 163 active C-42 sanitation system licenses in Los Angeles County; 14 registered in Los Angeles
- 10 of Los Angeles's 14 licenses (71.4%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Los Angeles: 18 years
- Longest Los Angeles licensure: since 1958
- 13 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 1958
- Phone
- (310) 398-8855
- Verified
- August 17, 2026
- Licensed since
- 1989
- Phone
- (323) 464-4700
- Verified
- August 17, 2026
- Licensed since
- 1990
- Phone
- (323) 661-1565
- Verified
- August 17, 2026
- Licensed since
- 1997
- Phone
- (323) 469-5692
- Verified
- August 17, 2026
- Licensed since
- 1998
- Phone
- (310) 820-8610
- Verified
- August 17, 2026
- Licensed since
- 2004
- Phone
- (310) 557-6249
- Verified
- August 17, 2026
- Licensed since
- 2007
- Phone
- (323) 295-1119
- Verified
- August 17, 2026
- Licensed since
- 2008
- Phone
- (323) 263-4343
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Roy E Smith Plumbing Co Inc. | #179873 | On file | 1958 |
| Boss Plumbing Company | #579704 | On file | 1989 |
| The Lighthart Corporation | #593113 | On file | 1990 |
| E Z Roth Plumbing Inc. | #741375 | On file | 1997 |
| Escobar Contracting Inc. | #747724 | On file | 1998 |
| Gch Plumbing Inc. | #842253 | On file | 2004 |
Los Angeles County septic licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 163 active C-42 sanitation system licenses in Los Angeles County, 14 of them registered in Los Angeles. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Los Angeles license has been held 18 years, and the longest-standing one dates to 1958. 10 of Los Angeles's 14 licenses (71.4%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 162 of the county's 163 licenses carry the same $25,000 bond California sets by statute. 13 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.
Septic Contractors in Los Angeles: common questions
How many licensed septic contractors are there in Los Angeles?
14 active C-42 sanitation system licenses are registered in Los Angeles, out of 163 across Los Angeles County. 13 Los Angeles-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. Only licenses CSLB shows as CLEAR and unexpired are listed.
Does California license septic contractors?
Yes. California licenses contractors by classification, and C-42 is the CSLB classification that authorises this work. 14 active C-42 sanitation system licenses are registered in Los Angeles and 163 across Los Angeles County, the longest-standing issued in 1958. Only CLEAR, unexpired licenses appear here.
How do I check a septic contractor's license in California?
Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which 10 of Los Angeles's 14 currently carry. 13 Los Angeles County licenses expire within 90 days.
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