Drain Field Repair — Leach Field Specialists Near You
Septic drain field trench with pipes
The drain field (leach field) is where your septic system's water is finally treated by the soil — and it's the most expensive part to replace. Catching problems early can mean repair instead of replacement.
Signs of drain field trouble
- Wet, spongy or unusually green areas over the field
- Sewage odor outdoors
- Slow drains and gurgling after the tank was pumped
- Water backing up when doing laundry
What the service involves
Depending on the diagnosis, pros may jet or aerate the lines, treat biomat build-up, repair crushed pipes, or — when the soil is saturated beyond recovery — install a new field in a reserve area.
How much does drain field repair cost?
Repairs run $2,000–$10,000 depending on the fix. A full drain field replacement costs $5,000–$20,000 based on size and soil. Regular tank pumping is the best insurance against ever needing one.
Watch: signs of septic system and drain field failure
signs of septic system and drain field failure
Related services
Frequently asked questions
Can a failed drain field recover? Sometimes — resting the field and fixing the cause (like a full tank) can help, but saturated biomat often requires professional treatment or replacement.
How long does a drain field last? 20–30 years with proper tank maintenance.
Find a drain field specialist in your area — choose your city above.