From a failed leach field in Denham Springs to a brand-new aerobic treatment unit in Prairieville, every job starts with a straight answer about what's wrong and what it should cost.
New conventional and aerobic systems, sized and permitted for Louisiana soil and Department of Health rules. The right system for your lot — not the most expensive one.
Installation & replacement →Soggy grass, sewage smell, slow drains after rain — in our clay soil and high water table, drain fields fail early. Repair and full replacement options explained honestly.
Drain field repair in Baton Rouge →Cracked lids, failed baffles, broken risers, pump and alarm problems. Small repairs done right — before they become a full system replacement.
Tank repair →Many Baton Rouge–area parishes require mechanical treatment plants. Installation, repair, and the service contracts Louisiana law requires — all handled locally.
Aerobic systems →Buying or selling a home on septic in Livingston or Ascension Parish? A pre-sale inspection protects the deal — and the buyer — before closing day.
Septic inspections →Start with the symptom. Septic odor in the yard, wet spots over the drain field, or gurgling drains each point to a different fix — and a very different bill.
Symptom guides →
Greater Baton Rouge is one of the hardest places in America to run a septic system. A drain field that lasts 30 years in sandy Florida soil often fails in 10 to 15 years around Denham Springs, Walker, Prairieville, and Gonzales — and the reason isn’t your maintenance. It’s the ground under your yard.
East Baton Rouge, Livingston, and Ascension Parishes sit on flat, heavy alluvial clay laid down by the Mississippi River. Clay barely percolates — the exact opposite of what a conventional drain field needs. Effluent that would soak away in an hour in sandy soil sits on top of Louisiana clay for days.
Baton Rouge gets roughly 60 inches of rain a year — nearly double the U.S. average — on top of a summer water table that already sits within a few feet of the surface across much of Ascension and Livingston Parishes. When a multi-day storm saturates the ground, your drain field is already full before your tank sends anything to it. That’s why drains slow and toilets gurgle after heavy rain, and why the grass over the drain field stays soggy for a week.
Most septic problems in Baton Rouge are fixable — and the honest fix isn’t always full replacement. A crushed line, a failed distribution box, a clogged effluent filter, or a tank that’s simply overdue for pumping can look exactly like a dead drain field. The wrong call costs five figures. The right one sometimes costs a few hundred dollars.
Not necessarily. In our high water table, heavy rain can temporarily saturate even a healthy field. But if backups happen after every rain — or the yard stays soggy for days — the field is likely waterlogged or biologically clogged and needs professional evaluation. See our guide on backups after rain.
Most conventional replacements land in the low-to-mid five figures depending on system type, lot conditions, and parish requirements; aerobic treatment units run higher than conventional systems. Our local cost guide covers the ranges in detail.
Many lots in the Baton Rouge area — especially with poor percolation or small lot sizes — are required by parish and Louisiana Department of Health rules to use an aerobic treatment unit instead of a conventional system. Our ATU page explains when they're required and what they cost to run.
