Licensed Septic Companies in Winn Parish, LA
5 septic companies serve Winn Parish, Louisiana, and 5 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 Winn Parish
Guides: Septic system installation · Aerobic septic systems · Installation cost · Pumping cost
5 septic companies in Winn Parish
Winnfield 4
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Folden Plumbing
265 Par Rd 786, Winnfield, LA 71483
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #30976 (Louisiana Department of Health, verify)
Per state license: Installation
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Johnny M. White Plumbing
Winnfield, LA 71483
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #32331 (Louisiana Department of Health, verify)
Per state license: Installation
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K&M Construction of Louisiana LLC
Winnfield, LA 71483
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination; Maintenance) · #340 (Louisiana Department of Health, verify)
Per state license: Installation · Aerobic systems
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Kelly Maggio
Winnfield, LA 71483
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #40107 (Louisiana Department of Health, verify)
Per state license: Installation
Atlanta 1
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LaCroix Sewer & Site Solutions LLC
Atlanta, LA 71404
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination; Maintenance) · #40102 (Louisiana Department of Health, verify)
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 Winn 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 Winn Parish: common questions
How many licensed septic companies are in Winn Parish, LA?
5 septic companies serve Winn Parish, Louisiana, and 5 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 Winn Parish?
5 listings in Winn 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.