Septic Tank Pumping
Pump-outs for treatment plants, Delta tanks, and older conventional tanks, on your schedule or in an emergency.
Full-service septic in Ascension Parish, Livingston Parish, and the Baton Rouge area
Pumping, recertifications, repairs, and complete new systems. Owner-run by Jason Lambert: you get a straight answer on what your system needs, and what it does not.
What we do
The whole system, handled by one company
We pump the tanks, maintain the aerators, repair the lines, and install complete new treatment plants, with our own excavators and our own crew. From an emergency pump-out to a full mobile-home site, nothing gets lost in a handoff between contractors.
Maintenance & Recertifications
The inspection and paperwork a home sale or maintenance contract needs, with the pump-out combo most sales require.
Septic Repairs & Service Calls
Troubleshooting, broken lines, failed aerators, and every repair in between, diagnosed before anything gets replaced.
New System Installation
MO-DAD treatment plants installed from $4,000 with a lifetime tank warranty, for new construction and replacements.
Camera Inspection & Locating
See inside the line and mark exactly where it runs: one visit, one $300 price, no guessing.
Lift Stations
Lift stations built, set, and wired, for the sites where gravity needs help.
Mobile Home Site Prep
Pad, driveway, concrete, sewer, and water: everything under and around a mobile home except the electrical and AC.
Excavation, Hauling & Grading
Earth moving with our own machines and operators: hauling, grading, French drains, culverts, and drainage.
Up-Front Pricing
Septic tank pumping
$400
A standard 750-gallon treatment plant. Delta tanks are $450 (more work to get the solids out), and older conventional 500-gallon tanks without an aerator run around $300.
What is includedMaintenance / recertification
$200
The inspection and paperwork a home sale or maintenance contract requires: the whole system checked, the aerator verified working, and the report filed.
What is includedRecertification + pump-out combo
$550
The two services most home sales need, done in one visit, $50 off doing them separately.
What is includedIn their words
4.9 stars from 38 neighbors
St.Amant septic came out to troubleshoot problems with my existing modad. He narrowed it down to the piping being incorrectly installed. His crew came out the next week to dig it up and repair. He was 100% correct about the piping and upon digging they discovered more problems. They were able to come up with a solution and repair everything that day. The price he charged me initially didn’t change, even though the work load increased. I can’t brag enough on how respectful and hard working these guys are. Really great and honest company!!!!!
Can’t recommend these guys enough. Neither of my toilets would flush. Then started backing up into my tub. I called them on a Saturday morning. They came out within about an hour and got me fixed up. Very friendly and knowledgeable guys. I didn’t know what to expect for pricing, as I haven’t had any septic work done before. But it was affordable for sure.
We had a total septic system replacement on 9/25/25, courtesy of St. Amant Septic Tank Service, LLC. The crew arrived on time and immediately began working. They worked very fast without sacrificing quality. You could tell they each took great pride in their work. It was important to them to do things the right way. They took the time to ensure that the tank was level and each pipe had the proper slope. Their teamwork was amazing. They were very knowledgeable and happily answered all our questions. We will definitely call Jason and his team again in the future and would absolutely recommend them to anyone who needs their services.
Buying or selling a home?
Recertification and pump-out, one visit
Selling a house on a septic system in Louisiana? Before you can close, the system has to be checked, pumped, and recertified. That is usually two separate visits and a stack of paperwork. We do all of it in one trip, and we file the paperwork for you.
- The whole system inspected and the aerator verified working
- The tank pumped the same visit: $550 for both
- The paperwork filed, so nothing surfaces a week before closing
Owner-run
Transparent Pricing,
Quality Work
Jason Lambert runs this company the way he works: straight with people. He spent years putting in and fixing septic systems on his own. When the man who had run St. Amant Septic for years was ready to retire, he asked Jason to take it over. Jason put the two together, so now one crew handles all of it, from a pump-out to a whole new system.
We treat it like a partnership. We look at your system, tell you what is actually wrong, and if the work does not need doing, we say so. That is why our customers keep calling us back.
Hear it from Jason
Fifty seconds on how we work and why our customers stop shopping around. Sound on.
Where we work
Ascension, Livingston, and the Baton Rouge area
Based in St. Amant, LA, serving Ascension Parish including Gonzales, Prairieville, Geismar, Sorrento and Donaldsonville, plus Livingston Parish (Denham Springs, Walker, French Settlement, Maurepas) and the Baton Rouge area, roughly a 45-minute radius from our office.
Not sure whether you are in range? Call and ask. If we cannot get to you, we will point you to someone who can.
Last updated
Need a septic tank pumped or looked at?
Call or send a message and we will get you on the schedule.