Best Licensed Septic Contractors in Porterville, CA
3 septic companies registered in Porterville hold current CSLB licenses, verified against official records as of August 17, 2026. All 3 are listed below, ordered by workers' compensation cover and years licensed.
- 11 active C-42 sanitation system licenses in Tulare County; 3 registered in Porterville
- 0 of Porterville's 3 licenses (0.0%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Porterville: 15 years
- Longest Porterville licensure: since 2010
- 2 county licenses reach their expiration date within 90 days
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- Verified
- August 17, 2026
- Licensed since
- 2010
- Phone
- (559) 920-9660
- Verified
- August 17, 2026
- Licensed since
- 2011
- Phone
- (559) 781-7635
- Verified
- August 17, 2026
- Licensed since
- 2015
- Phone
- (559) 781-1067
Compare the top 3 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Sierra Plumbing | #953083 | Exempt or none on file | 2010 |
| Don's Septic Tank Service | #956539 | Exempt or none on file | 2011 |
| Quik Plumbing & Construction Co | #1003622 | Exempt or none on file | 2015 |
Tulare County septic licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 11 active C-42 sanitation system licenses in Tulare County, 3 of them registered in Porterville. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Porterville license has been held 15 years, and the longest-standing one dates to 2010. 0 of Porterville's 3 licenses (0.0%) 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: 11 of the county's 11 licenses carry the same $25,000 bond California sets by statute. 2 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 Porterville: common questions
How many licensed septic contractors are there in Porterville?
3 active C-42 sanitation system licenses are registered in Porterville, out of 11 across Tulare County. 3 Porterville-registered companies passed our license verification, and all 3 are listed on this page. 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. 3 active C-42 sanitation system licenses are registered in Porterville and 11 across Tulare County, the longest-standing issued in 2010. 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 0 of Porterville's 3 currently carry. 2 Tulare County licenses expire within 90 days.
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