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Septic Tank Services in Louisiana

Find trusted, licensed septic companies across 14 cities in Louisiana. Compare ratings, read reviews, and get free estimates.

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⭐4.5Avg Rating
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Local Coverage

Browse Septic Services by City

14 cities with septic service providers in Louisiana

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Louisiana Service Map
14 cities with verified providers
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Statewide

Browse Septic Services by County in Louisiana

57 counties with septic providers across Louisiana

St. Tammany County
44 companies
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East Baton Rouge Parish
20 companies
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Caddo Parish
12 companies
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Orleans Parish
12 companies
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St. Tammany Parish
11 companies
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Livingston Parish
9 companies
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Lafayette Parish
8 companies
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Calcasieu Parish
7 companies
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Ascension Parish
5 companies
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Jefferson County
5 companies
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Tangipahoa Parish
5 companies
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Ouachita County
4 companies
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Ascension County
3 companies
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Iberia Parish
3 companies
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Lincoln Parish
3 companies
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Livingston County
3 companies
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Tangipahoa County
3 companies
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Washington Parish
3 companies
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Webster Parish
3 companies
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Avoyelles Parish
2 companies
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Bossier Parish
2 companies
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De Soto Parish
2 companies
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East Baton Rouge County
2 companies
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Evangeline Parish
2 companies
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Lafourche County
2 companies
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Natchitoches Parish
2 companies
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Rapides Parish
2 companies
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Sabine County
2 companies
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St. Landry Parish
2 companies
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Vermilion County
2 companies
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Vernon County
2 companies
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Acadia County
1 company
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Assumption County
1 company
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Beauregard County
1 company
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Beauregard Parish
1 company
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Bossier County
1 company
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East Carroll County
1 company
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East Feliciana Parish
1 company
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Iberville County
1 company
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Jackson County
1 company
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Jefferson Davis Parish
1 company
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Lafourche Parish
1 company
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Lincoln County
1 company
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Morehouse County
1 company
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Plaquemines County
1 company
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Rapides County
1 company
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Richland County
1 company
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Richland Parish
1 company
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St. Bernard County
1 company
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St. Martin County
1 company
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St. Martin Parish
1 company
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St. Mary County
1 company
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Terrebonne County
1 company
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Washington County
1 company
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Webster County
1 company
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West Baton Rouge County
1 company
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Winn Parish
1 company
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Browse septic services by county across Louisiana.

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Local Guide

About Septic Systems in Louisiana

Louisiana's 25% of homes on septic systems face unique challenges across the state's diverse landscapes, from the alluvial plains along the Mississippi River to the coastal marshes of Terrebonne and Lafourche parishes. The state's notoriously high water table, often rising to just 1-5 feet below ground surface, combined with hurricane-prone geography and heavy clay or muck soils, demands specialized system designs that differ dramatically from conventional septic installations. With 53 licensed providers serving 41 communities from Shreveport's red clay hills to the sandy loam of St. Tammany Parish, Louisiana homeowners must navigate parish-specific regulations and elevated or mound system requirements that reflect the state's challenging hydrological conditions.

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25%

Homes on Septic

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53

Licensed Providers

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4.5/5

Avg Service Rating

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Every 3-5 years

Recommended Pumping

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Regulatory Authority

Louisiana Department of Health, Office of Public Health

  • βœ“Louisiana Sanitary Code Part XIV establishes statewide standards for individual sewage disposal system design, installation, and maintenance
  • βœ“Licensed Master Plumber or Mechanical Contractor certification is mandatory for all septic system installations throughout the state
  • βœ“High water table conditions require raised sand mound or aerobic treatment systems in most parishes, particularly those near the coast and Mississippi River floodplain
  • βœ“Parish health departments issue permits with significant local variances reflecting soil composition and flooding risk, creating different requirements in Orleans versus Caddo Parish

Inspection Rules: Louisiana does not mandate septic system inspections at the time of property sale on a statewide basis, though individual parishes may impose local requirements.

Environmental Factors

Soil Type

High Impact

Louisiana's soils range from heavy Sharkey clay in the Red River Valley to organic muck in coastal parishes and alluvial silt along the Mississippi, with only limited sandy loam areas in the Florida Parishes providing adequate percolation rates for conventional drain fields

Water Table

High Impact

The water table sits between 1-5 feet below surface across most of Louisiana, particularly in parishes south of Interstate 10, requiring expensive raised mound systems or aerobic treatment units instead of conventional subsurface absorption fields

Climate

High Impact

Louisiana's humid subtropical climate delivers 60+ inches of annual rainfall with intense summer thunderstorms that saturate drain fields, while hurricane season from June through November brings storm surge and flooding that can inundate and contaminate entire systems

Frost Line

Low Impact

With a frost line of only 0-6 inches, freezing is essentially irrelevant to Louisiana septic design, allowing shallow pipe installations that would fail in northern states but creating no winterization requirements for tanks or components

Average Pumping Cost

$325 – $575per service
$200$800
Access difficulty during wet seasons when saturated soils prevent heavy truck access to rural properties in Livingston and Tangipahoa parishesElevated mound system pumping requires specialized equipment to service aerobic treatment units and control panels mandated by high water tablesHurricane damage assessment and post-flooding contamination remediation significantly increase service costs in coastal parishesParish permit fees and inspection requirements vary widely, with some parishes charging substantially more for system modifications or repairs

Tips for Louisiana Homeowners

1

Install a raised sand mound or aerobic treatment system if your property sits in areas where the water table reaches within 3 feet of surface, as conventional drain fields will fail in Louisiana's saturated conditions and violate Louisiana Sanitary Code Part XIV absorption field depth requirements

2

Schedule pumping during dry months (September-October or March-April) when Livingston, Ascension, and St. Tammany parish properties are most accessible, as summer rains and clay soils can make rural sites impassable for service trucks

3

Secure hurricane-resistant tank lids and mark your system location with permanent above-ground markers, since storm surge in coastal parishes from Cameron to Plaquemines can displace tanks and obscure access points under debris

4

Verify your parish-specific regulations with your local health department before any repair work, as St. Bernard Parish requirements differ substantially from Ouachita Parish due to varying soil and flood zone classifications under Louisiana Department of Health guidelines

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Common Questions

Frequently Asked Questions

About septic services in Louisiana

Louisiana's water table sits just 1-5 feet below ground across most of the state, particularly in parishes south of Alexandria and throughout the coastal zone. Louisiana Sanitary Code Part XIV requires minimum separation distances between drain field trenches and the seasonal high water table that conventional buried systems simply cannot achieve in these conditions. Raised sand mound systems elevate the drain field above natural grade, creating the necessary vertical separation for wastewater treatment. In St. Tammany, Livingston, and Lafourche parishes, mound systems are the norm rather than the exception, with costs running $8,000-$15,000 compared to $3,000-$6,000 for conventional systems in the rare areas where water table depth permits traditional installation.
Hurricane storm surge and flooding pose catastrophic risks to septic systems throughout Louisiana's coastal zone from Cameron Parish east through Terrebonne, Lafourche, and Plaquemines. Floodwaters can physically displace tanks if they're not properly anchored, contaminate drain fields with saltwater and debris, and force sewage backup into homes through plumbing fixtures. After hurricanes Laura, Ida, and other major storms, thousands of systems in southwestern and southeastern Louisiana required complete replacement. Property owners in flood-prone parishes should install anchored tanks with watertight risers, avoid water use during flooding to prevent hydraulic overload, and have systems professionally inspected after any storm surge event before resuming normal use to prevent health hazards.
Louisiana does not impose a statewide septic inspection requirement at property transfer, unlike neighboring Mississippi. However, individual parish health departments can establish local inspection mandates, and some parishes in the greater New Orleans and Baton Rouge areas have implemented point-of-sale inspection programs. Additionally, mortgage lenders frequently require septic evaluations as a condition of financing, effectively creating an inspection requirement even where parishes don't mandate it. Buyers should specifically request a professional septic inspection regardless of legal requirements, particularly for properties in Tangipahoa, St. Tammany, or Livingston parishes where high water tables and aging systems create elevated failure risks that standard home inspections won't identify.
Louisiana's Sharkey clay soils in the Red River Valley and organic muck soils in coastal marshes from Vermilion to Terrebonne parishes have percolation rates too slow for conventional drain field function. These soils absorb water so poorly that wastewater pools on the surface rather than filtering through soil particles. The Louisiana Department of Health requires percolation testing before system design, and properties with clay or muck typically need aerobic treatment units with surface discharge permits or pressurized drip irrigation systems that distribute treated effluent across wider areas. Even the alluvial silt along the Mississippi River in Concordia and Tensas parishes often requires system modifications due to seasonal saturation and poor drainage characteristics that prevent adequate wastewater treatment.
Louisiana's humid subtropical climate with 60+ inches of annual rainfall keeps drain fields continuously saturated, particularly during the May-through-September wet season when afternoon thunderstorms are daily occurrences across the state. This constant moisture stresses biological treatment processes in the drain field and accelerates biomat formation that clogs soil pores, reducing system lifespan. Properties in Lafayette, Lake Charles, and Monroe should pump tanks every 3 years rather than stretching to 5 years, as humid conditions promote faster solids accumulation. The perpetual soil saturation also means drain fields in Beauregard, Vernon, and Rapides parishes never get the drying periods that systems in Texas or Oklahoma experience, making water conservation and diversion of roof drainage away from the drain field absolutely critical for system longevity.
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