Licensed Septic Companies in Union Parish, LA
10 septic companies serve Union Parish, Louisiana, and 10 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 Union Parish
Guides: Septic system installation · Aerobic septic systems · Installation cost · Pumping cost
10 septic companies in Union Parish
Downsville 5
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Ecological Tanks
2247 LA-151, Downsville, LA 71234
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #30117 (Louisiana Department of Health, verify)
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #484 (Louisiana Department of Health, verify)
Per state license: Installation
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J McDaniel Farm LLC
Downsville, LA 71234
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic) · #40120 (Louisiana Department of Health, verify)
Per state license: Installation
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JR Miller Construction LLC
Downsville, LA 71234
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #32478 (Louisiana Department of Health, verify)
Per state license: Installation
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Lees Bordelon Septic
Downsville, LA 71234
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31892 (Louisiana Department of Health, verify)
Per state license: Installation
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Septic Solutions of Downsville
Downsville, LA 71234
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31990 (Louisiana Department of Health, verify)
Per state license: Installation
Farmerville 3
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Anderson Sewer Systems, LLC
Farmerville, LA 71241
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31920 (Louisiana Department of Health, verify)
Per state license: Installation
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Hattaway Plumbing LLC
400 Laster Rd, Farmerville, LA 71241
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #32217 (Louisiana Department of Health, verify)
Per state license: Installation
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Union Construction & Dirt LLC
Farmerville, LA 71241
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #32314 (Louisiana Department of Health, verify)
Per state license: Installation
Marion 1
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A&J Dirtwork LLC
Marion, LA 71260
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31524 (Louisiana Department of Health, verify)
Per state license: Installation
Spearsville 1
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MCS Group LLC
Spearsville, LA 71277
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination; Maintenance) · #40097 (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 Union 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 Union Parish: common questions
How many licensed septic companies are in Union Parish, LA?
10 septic companies serve Union Parish, Louisiana, and 10 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 Union Parish?
10 listings in Union 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.