Do plumbers work on septic tanks in Lafayette, LA?

Most general plumbers in Lafayette don't work on the septic tank itself. They'll fix the plumbing inside your walls and the line from your house to the tank inlet — but everything past the tank (the tank itself, the outlet baffle, the drain field) is licensed septic service work in Louisiana. Calling a plumber for a tank problem usually means paying for a diagnostic visit and then paying a septic contractor separately.

Are you a plumber or a septic service?

We're a licensed septic service — which in Acadiana covers everything from the house's outflow pipe to the drain field. That includes septic tank pumping, tank and baffle repair, drain field rehabilitation, aerobic system repair, and septic system installation. For interior plumbing (water supply lines, fixtures, drain pipes inside the home), you need a licensed plumber; we'll tell you if that's who you actually need.

Who do I call if my septic system and my plumbing both have problems?

Call the septic service first. Most 'plumbing problems' attached to a septic backup are actually the septic system failing and backing up into the house's drain lines. Pump the tank, check the baffles, and 70% of the 'plumbing' symptoms resolve. If something is still wrong inside the house after the septic system is confirmed healthy, that's when a plumber adds value.

Are licensed septic plumbers more expensive than a regular plumber?

For septic-specific work, we're usually less expensive than a plumber because we bring the right truck, vacuum, and crew for the job — a plumber generally can't do tank work at all, and would sub it out to us with a markup. For interior plumbing work unrelated to the septic system, we'll refer you to a licensed plumber and not try to charge you for work outside our scope.

Do you pull septic permits in Lafayette Parish?

Yes. For installations, replacements, and major repairs, we handle the Lafayette Parish permitting and Louisiana Department of Health approval start to finish. Most homeowners don't realize septic work in Louisiana requires state health approval — using an unlicensed contractor can create title problems when you try to sell.

What's the difference between a septic plumber and a septic pumper?

A septic pumper is equipped to pump tanks — that's their whole job. A licensed septic plumber / installer (like us) pumps tanks, but also inspects, repairs, replaces baffles and risers, rehabilitates drain fields, and installs new systems. When the problem goes beyond 'the tank is full,' you need the broader license.

Licensed Septic Plumbers in Acadiana: Who Actually Fixes What

Name: Bayou Teche Septic
Address: Lafayette, LA, US
Telephone: (337) 492-0960
Price range: $$

April 21, 2026 8 min read Lafayette, LA

One of the most expensive mistakes Acadiana homeowners make with their septic system is simple: they call a regular plumber when they need a licensed septic service. By the time the plumber tells them it's outside their scope, the homeowner has paid a diagnostic visit, lost half a day, and still has a backed-up septic system.

This guide explains what licensed septic plumbers actually do in Louisiana, where the plumber-vs-septic-service line falls, and how to save the diagnostic visit by calling the right crew on the first try.

The Problem: "Who Do I Even Call for This?"

Here's what usually happens. A toilet backs up. Homeowner calls a plumber — because that's what you do when plumbing fails. Plumber arrives, runs a camera, sees the main line is clogged with sewage, and tells the homeowner: "Your septic tank is full. You need a septic service. I can't help you with that."

The diagnostic visit costs $150–$300. The real fix — pumping the septic tank — costs another $300–$600. Total: up to $900 for a job that a septic service could have done for $450, including the diagnostic.

The reverse mistake is just as expensive. Homeowner calls a septic service for a sink that won't drain on a house with functioning septic. We show up, find a localized clog inside the wall, and have to refer them to a plumber.

Agitate: What's Actually Happening With Your System

Septic and plumbing failures look the same from the user's perspective: water isn't going where it's supposed to. The difference is on the other side of your exterior wall.

Interior plumbing (plumber's scope): Water supply lines, fixtures, interior drain piping, the line from the fixture to the main stack, garbage disposals, water heaters, pressure regulators. Anything from the fixture to where the drain line leaves the house.

Septic system (licensed septic plumber's scope in Louisiana): The line from where it exits the house to the tank inlet, the tank itself, both compartments, inlet and outlet baffles, effluent filter (if installed), outlet line to the drain field, the drain field itself, distribution box, and aerobic/advanced treatment components.

The Overlap Zone

The line from the house to the tank inlet is technically the gray area. In Louisiana, a septic service is licensed to repair or replace that line. A plumber can clear a clog in it if they have a septic-rated snake or jetter, but they can't repair a broken line past a certain distance without coordinating with the septic contractor.

Solve: How to Know Which to Call First

Use this quick diagnostic before you dial:

Symptom	Call First	Why
One fixture is slow/clogged	Plumber	Localized — not a septic issue
All drains in the house slow	Septic service	System-wide = tank or field
Sewage smell outside over the yard	Septic service	Drain field symptom
Soggy grass over the tank/field	Septic service	Tank overflow or field failure
Gurgling when toilet flushes	Septic service	Venting backup = tank-full signal
Water pressure dropped in showers	Plumber	Supply side, unrelated to septic
Leak under a sink	Plumber	Interior plumbing failure
Water heater failed	Plumber	Appliance, not drainage

When in doubt: if the symptom is "everything in the house" — septic first. If the symptom is "just this one thing" — plumber first.

What a Licensed Septic Service Handles in Lafayette

Because we've been asked "can you do this?" enough times, here's the clean list. If the job is in this list, we handle it end-to-end:

Septic tank pumping — routine and emergency
Septic inspection — including real estate transaction pre-sale
Tank, baffle, and riser repair
Drain field rehabilitation and repair
Aerobic system repair — spray heads, air pumps, chlorinators
Full septic system installation — new construction and replacement
Grease trap cleaning — residential and commercial
Permitting through Lafayette Parish and the Louisiana Department of Health

What Licensing Actually Means in Louisiana

Louisiana requires a separate license for septic work beyond pumping. A contractor can legally pump a tank with relatively minimal licensing — but installing a drain field, replacing a tank, or modifying a system requires the full septic installer license, Louisiana Department of Health approval on the design, and parish-level permitting.

If you're selling your house and the buyer's inspector finds unpermitted septic work, you have a title problem that can delay or kill the sale. Always verify a septic contractor is licensed for the specific work you're hiring them for — not just "is a plumber."

What You Pay, Side by Side

Task	Plumber Cost	Septic Service Cost
Diagnose backed-up house	$150–$300	Included in service call
Pump 1,000 gal septic tank	Not performed	$300–$600
Clear line clog to tank	$200–$500	$150–$350 (during pump)
Install riser on tank lid	Not performed	$150–$400
Replace outlet baffle	Not performed	$250–$500
Replace sink trap or faucet	$100–$300	Refer to plumber

Acadiana Service Area

We serve all of Lafayette Parish and most of the surrounding Acadiana region as licensed septic plumbers:

Lafayette
Broussard
Youngsville
Plus St. Martin, Iberia, and Vermilion parishes on request.

Not Sure Who To Call? We'll Tell You Honestly.

Call (337) 492-0960. If your problem turns out to be inside-the-house plumbing, we'll say so upfront and recommend a licensed Lafayette plumber we trust — no charge for the redirect.

Call (337) 492-0960 Request Quote Online