New construction, replacement, or upgrade — we design and install septic systems built to last. Licensed, insured, and done right the first time.
Call Now — (931) 334-5580Whether you're building a new home, replacing a failed system, or upgrading an undersized tank, A-OK Septic & Excavation has the equipment and expertise to get it done. We install conventional septic systems, pump systems, and alternative systems designed for challenging soil conditions across Middle Tennessee.
Every installation starts with a proper site evaluation and design — because a system that's sized or placed wrong will fail early no matter how well it's built. We do it right from the start.
Building a home in Maury, Marshall, Lawrence, or Giles County? You'll need a septic system if you're not connecting to municipal sewer. We work directly with builders, contractors, and homeowners to install systems that meet all Tennessee Department of Environment & Conservation (TDEC) requirements.
Our process:
When an existing system fails beyond repair, full replacement is often the most cost-effective long-term solution. Signs you may need a full replacement:
We'll give you an honest assessment before recommending replacement. If repair is a viable option, we'll tell you — and give you both quotes so you can decide.
We pull permits, follow TDEC guidelines, and pass final inspections. Your system will be on record and compliant — important for resale value and legal protection. We don't cut corners, and we won't let you either.
Costs vary widely based on soil conditions, system type, and property layout — typically $8,000–$25,000 for a full installation. We provide detailed quotes after a site evaluation. No guessing games.
Most installations are completed in 1–3 days of actual work, though permitting and scheduling can add time. We'll give you a realistic timeline upfront.
Yes. We manage the permitting process with the county health department and TDEC so you don't have to navigate that on your own.
A properly installed and maintained septic system can last 25–40 years. Regular pumping and avoiding harsh chemicals are the biggest factors in longevity.
Often yes — alternative systems like low-pressure pipe (LPP) are designed for exactly this situation. We'll evaluate your site and tell you what's possible.
Installing a septic system is a major investment. These resources help you understand the process, what's required by law, and financing options that may be available to you:
A clear explanation of the components of a conventional septic system and how each part functions. Understanding this helps you make informed decisions about system type and sizing.
Tennessee state law requires permits and inspections for all new septic installations. This is TDEC's official page on what's required — important reading before breaking ground.
Rural homeowners in Tennessee may qualify for USDA grants or low-interest loans to help cover the cost of a new septic system. Worth checking before assuming you have to pay out of pocket.
Once your system is installed, proper habits determine how long it lasts. The EPA's care guide covers pumping schedules, what to avoid flushing, and how to protect the drain field from day one.
Every property is different. Call us to schedule a site visit and get an accurate, no-obligation quote.