Licensed Septic Companies in Monterey County, CA
14 septic companies serve Monterey County, California, and 14 of them hold a California septic license or certification matched to the California Contractors State License Board list (data as of October 2026).
Septic services in Monterey County
Guides: Septic system installation · Septic inspection · Septic repair · Drain field repair · Installation cost · Pumping cost
14 septic companies in Monterey County
Salinas 7
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Abbott Construction & Plumbing
220 Abbott St, Salinas, CA 93901
- Licensed: California Licensed Contractor (B, C16, C36, C42, D12, D21) · #469680 (California Contractors State License Board, verify)
Per state license: Installation
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Grimm Construction Co
770 Paradise Rd, Salinas, CA 93907
- Licensed: California Licensed Contractor (B, C42) · #293841 (California Contractors State License Board, verify)
Per state license: Installation
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My Plumber Inc
115 Nissen Rd, Salinas, CA 93901
- Licensed: California Licensed Contractor (C36, C42) · #1024528 (California Contractors State License Board, verify)
Per state license: Installation
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Rural Septic Technologies
325 North Main Street, Salinas, CA 93901
- Licensed: California Licensed Contractor (C42) · #1023034 (California Contractors State License Board, verify)
Per state license: Installation
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Salinas Valley Septic Services
16945 El Rancho Way, Salinas, CA 93907
- Licensed: California Licensed Contractor (C42) · #1093099 (California Contractors State License Board, verify)
Per state license: Installation
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Siteworx Inc
104 San Benancio Rd, Salinas, CA 93908
- Licensed: California Licensed Contractor (C12, C42) · #1078030 (California Contractors State License Board, verify)
Per state license: Installation
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Tom's Septic Construction
560 Crazy Horse Canyon Rd, Salinas, CA 93907
- Licensed: California Licensed Contractor (A, B, C21, C42, HAZ) · #406512 (California Contractors State License Board, verify)
From their website: Installation · Inspection · Repair · Drain field · Grease traps
Carmel 2
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Cypress Plumbing Inc
27450 Schulte Rd, Carmel, CA 93923
- Licensed: California Licensed Contractor (C-4, C36, C42) · #375289 (California Contractors State License Board, verify)
Per state license: Installation
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Mr Rooter Plumbing Of Monterey
26030 Mesa Dr, Carmel, CA 93923
- Licensed: California Licensed Contractor (C32, C36, C42) · #1128256 (California Contractors State License Board, verify)
Per state license: Installation
Aromas 1
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Jewell'S Septic Construction
P O Box 5, Aromas, CA 95004
- Licensed: California Licensed Contractor (C42) · #1042969 (California Contractors State License Board, verify)
Per state license: Installation
Bradley 1
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M.J. Excavation
75854 Interlake Road, Bradley, CA 93426
- Licensed: California Licensed Contractor (C12, C42) · #887920 (California Contractors State License Board, verify)
Per state license: Installation
Carmel Valley 1
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831 Pld Enterprises Inc
78 A El Rio, Carmel Valley, CA 93942
- Licensed: California Licensed Contractor (C36, C42) · #514106 (California Contractors State License Board, verify)
Per state license: Installation
Marina 1
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Marina Plumbing & Heating
3340 Paul Davis Dr Suite G, Marina, CA 93933
- Licensed: California Licensed Contractor (C-4, C20, C34, C36, C42, C43) · #574447 (California Contractors State License Board, verify)
Per state license: Installation
Royal Oaks 1
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Schupay Kenneth James
461 Hidden Valley Road, Royal Oaks, CA 95076
- Licensed: California Licensed Contractor (C12, C42) · #625556 (California Contractors State License Board, verify)
Per state license: Installation
No listings match those filters.
Septic licensing in California
California has no license named for septic work; septic systems fall under the C-42 Sanitation System classification. Counties issue system permits. The Contractors State License Board (CSLB) issues these credentials: C-42 Sanitation System contractor license.
Permits for new systems, replacements and most repairs are issued locally. Ask the contractor which office handles Monterey County and whether the permit fee is in their quote.
California septic licensing: agencies, license types and how to check a license →
Septic companies in Monterey County: common questions
How many licensed septic companies are in Monterey County, CA?
14 septic companies serve Monterey County, California, and 14 of them hold a California septic license or certification matched to the California Contractors State License Board list (data as of October 2026). Each license badge on this page names the agency and links to its lookup so you can confirm it.
Who licenses septic contractors in California?
California has no license named for septic work; septic systems fall under the C-42 Sanitation System classification. Counties issue system permits. The licensing body is the Contractors State License Board (CSLB).
Which companies install septic systems in Monterey County?
14 listings in Monterey County install septic systems. New systems and replacements need a permit, so ask each installer to handle the permit and to show their California license.
How do I check a septic contractor's license in California?
Use the Contractors State License Board (CSLB)'s lookup (https://www.cslb.ca.gov/onlineservices/checklicenseII/checklicense.aspx) and search the contractor's name or license number. Our guide to checking a septic license walks through it.