Licensed Septic Companies in St. Landry Parish, LA
11 septic companies serve St. Landry Parish, Louisiana, and 11 of them hold a Louisiana septic license or certification matched to the Louisiana Department of Health list (data as of October 2026).
Septic services in St. Landry Parish
Guides: Septic system installation · Drain field repair · Aerobic septic systems · Installation cost · Pumping cost
11 septic companies in St. Landry Parish
Opelousas 4
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Larry Shaw Plumbing Inc.
Opelousas, LA 70570
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #166 (Louisiana Department of Health, verify)
Per state license: Installation
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Melvin Joubert Construction
Opelousas, LA 70570
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #30382 (Louisiana Department of Health, verify)
Per state license: Installation
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Smooth Finish Concrete LLC
Opelousas, LA 70570
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31809 (Louisiana Department of Health, verify)
Per state license: Installation
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Vidrine's Construction
3105 Interstate 49 South Service Rd, Opelousas, LA 70570
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination; Maintenance) · #30055 (Louisiana Department of Health, verify)
Per state license: Installation · Aerobic systems
Eunice 3
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Baham's Portables
LA-13, Eunice, LA 70535
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #790 (Louisiana Department of Health, verify)
Per state license: Installation
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Manuel's Septic and Portalets
467 Willie Young Rd, Eunice, LA 70535
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #32259 (Louisiana Department of Health, verify)
Per state license: Installation
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Martel Construction LLC
Eunice, LA 70535
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31127 (Louisiana Department of Health, verify)
Per state license: Installation
Sunset 3
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Chiasson Land Services
Sunset, LA 70584
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #40066 (Louisiana Department of Health, verify)
Per state license: Installation
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Chris's Construction and Drainage LLC
Sunset, LA 70584
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #40069 (Louisiana Department of Health, verify)
Per state license: Installation
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D&D Pro Services LLC
Sunset, LA 70584
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #32262 (Louisiana Department of Health, verify)
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31363 (Louisiana Department of Health, verify)
Per state license: Installation
Arnaudville 1
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OCR Sewer & Groundwork LLC
1124 Cecil Watkins Rd, Arnaudville, LA 70512
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination; Maintenance) · #32306 (Louisiana Department of Health, verify)
From their website: Drain field Per state license: Installation · Aerobic systems
No listings match those filters.
Septic licensing in Louisiana
The Louisiana Department of Health publishes its active installer list, which marks installers who can also maintain mechanical (aerobic) plants. The Louisiana Department of Health, Onsite Wastewater Program issues these credentials: Basic installer; Combination installer; Maintenance provider.
Permits for new systems, replacements and most repairs are issued locally. Ask the contractor which office handles St. Landry Parish and whether the permit fee is in their quote.
Louisiana septic licensing: agencies, license types and how to check a license →
Septic companies in St. Landry Parish: common questions
How many licensed septic companies are in St. Landry Parish, LA?
11 septic companies serve St. Landry Parish, Louisiana, and 11 of them hold a Louisiana septic license or certification matched to the Louisiana Department of Health 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 Louisiana?
The Louisiana Department of Health publishes its active installer list, which marks installers who can also maintain mechanical (aerobic) plants. The licensing body is the Louisiana Department of Health, Onsite Wastewater Program.
Which companies install septic systems in St. Landry Parish?
11 listings in St. Landry Parish install septic systems. New systems and replacements need a permit, so ask each installer to handle the permit and to show their Louisiana license.
How do I check a septic contractor's license in Louisiana?
Use the Louisiana Department of Health, Onsite Wastewater Program's lookup (https://ldh.la.gov/page/627) and search the contractor's name or license number. Our guide to checking a septic license walks through it.