Licensed Septic Companies in Washington Parish, LA
9 septic companies serve Washington Parish, Louisiana, and 9 of them hold a Louisiana septic license or certification matched to the Louisiana Department of Health list (data as of October 2026).
9 septic companies in Washington Parish
Franklinton 5
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Brent's Septic Tank
44362 Little Br Dr, Franklinton, LA 70438
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #30740 (Louisiana Department of Health, verify)
Per state license: Installation
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Cooper Unlimited
Franklinton, LA 70438
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #1442 (Louisiana Department of Health, verify)
Per state license: Installation
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D.O. Fussell Contracting Inc.
16416 Fussell Rd, Franklinton, LA 70438
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #85 (Louisiana Department of Health, verify)
Per state license: Installation
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Fussell Septic Services LLC
Franklinton, LA 70438
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #40089 (Louisiana Department of Health, verify)
Per state license: Installation
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Temples Tanks LLC
Franklinton, LA 70438
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic) · #40118 (Louisiana Department of Health, verify)
Per state license: Installation
Angie 2
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Donald Gholar Construction
Angie, LA 70426
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #32003 (Louisiana Department of Health, verify)
Per state license: Installation
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S&R Septic Tanks
Angie, LA 70426
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31223 (Louisiana Department of Health, verify)
Per state license: Installation
Bogalusa 2
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Easterling Excavation LLC
Bogalusa, LA 70427
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31399 (Louisiana Department of Health, verify)
Per state license: Installation
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Easterling Excavation LLC
Bogalusa, LA 70427
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #40073 (Louisiana Department of Health, verify)
Per state license: Installation
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 Washington 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 Washington Parish: common questions
How many licensed septic companies are in Washington Parish, LA?
9 septic companies serve Washington Parish, Louisiana, and 9 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 Washington Parish?
9 listings in Washington 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.