Licensed Septic Companies in Denham Springs, LA
6 septic companies serve Denham Springs, 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 Denham Springs
Guides: Septic tank pumping · Septic system installation · Septic repair · Aerobic septic systems · Installation cost · Pumping cost
6 septic companies in Denham Springs
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Acquired Wastewater
Denham Springs, LA 70727 · Livingston Parish
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31079 (Louisiana Department of Health, verify)
Per state license: Installation
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Lewis Septic Solutions
Denham Springs, LA 70706 · Livingston Parish
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #32255 (Louisiana Department of Health, verify)
Per state license: Installation
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Sewer Treatment Specialist
9886 Lockhart Rd, Denham Springs, LA 70726 · Livingston Parish
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination; Maintenance) · #32055 (Louisiana Department of Health, verify)
From their website: Aerobic systems · Grease traps Per state license: Installation
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WasteWater Environmental Systems, LLC
37271 Weiss Rd, Denham Springs, LA 70706 · Livingston Parish
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #31359 (Louisiana Department of Health, verify)
From their website: Repair Per state license: Installation
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Wastewater Treatment Systems & Ops
Denham Springs, LA 70726 · Livingston Parish
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #30129 (Louisiana Department of Health, verify)
- Licensed: Louisiana LDH Licensed Onsite Wastewater (Septic) Installer (Basic; Combination) · #32393 (Louisiana Department of Health, verify)
Per state license: Installation
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Southern Wastewater Louisiana Septic Cleaning and Pump Out
36981 Twin Oaks Dr, Denham Springs, LA 70706 · Livingston Parish
From their website: Pumping
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 Denham Springs and whether the permit fee is in their quote.
Louisiana septic licensing: agencies, license types and how to check a license →
Septic companies in Denham Springs: common questions
How many licensed septic companies are in Denham Springs, LA?
6 septic companies serve Denham Springs, 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 pump septic tanks in Denham Springs?
1 of the 6 listings in Denham Springs offer septic tank pumping, either on their own website or under a state pumper license. Use the service filter above to show only those companies.
Which companies install septic systems in Denham Springs?
5 listings in Denham Springs 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.