Serving Knox, Blount, Sevier & Loudon Counties
Knoxville Septic System Installation
New septic system designed, permitted, and installed to code across the Knoxville county ring. Free on-site estimate and upfront pricing.
- Licensed & Insured
- Free On-Site Estimates
- Upfront Pricing
- Financing Available
A new septic system is a permitted, engineered job, not something you rig up over a weekend. Whether you’re building on a fresh lot in the Knox county ring or adding onto an existing home, here’s exactly how a proper installation goes and what drives the timeline and price.
What a new septic installation actually involves
Every install starts underground, not with the tank. A soil scientist runs a perc test to see how your ground drains, that decides the entire system design. From there it’s: engineered design → county permit → excavation → set the tank → build the drain field → backfill → final inspection. Skip a step and the county won’t sign off (and you can’t legally use it).
System types we install
Your soil picks the system, not your budget. Good-draining soil on a sloped lot? A conventional gravity system is cheapest. Tight clay, shallow bedrock, or a high water table, common out here, and you’re into chamber, pressure-distribution, aerobic (ATU), or mound systems. See the full breakdown and prices in our Knoxville septic cost guide.
Timeline: what to expect
Perc test and design run about a week; the county permit takes days to a few weeks depending on the office; the dig and install itself is usually a few days. We schedule most jobs within the same week and handle the permit paperwork so you’re not on hold with Environmental Health.
Permits and the county
New systems are permitted through the state Environmental Health / Groundwater Protection program in Knox, Blount, Sevier, Anderson, Loudon, and Union counties. We pull the permits, schedule the inspections, and build to code, you don’t touch the paperwork.
Where we work
Serving the Knoxville septic county ring
On a septic system in the exurban ring around Knoxville? You're in our service area. Not sure? Call and we'll tell you in 30 seconds.
Call (865) 284-8837- Knox County
- Blount County
- Anderson County
- Sevier County
- Loudon County
- Union County
Financing available
A failing septic system shouldn't wait for payday
Ask about financing options that spread the cost of a new or replacement system into manageable monthly payments, so you can fix it now.
Common questions
What homeowners ask us first
Do I need a perc test for a new septic system?
Yes. A percolation (soil) test is the first step and it decides the system design and most of the cost. It runs roughly $150–$1,500 and comes before anything is dug.
How long does a new septic installation take?
Perc test and design about a week, the county permit days to a few weeks, and the install itself usually a few days once permitted.
What size septic tank do I need for a new install?
Sized by bedroom count, roughly 1,000 gallons for a 3-bedroom home, more for larger houses. We size it to your home and soil.
Can you install a septic system on a brand-new lot?
Yes, new-build lots are most of what we install. We design to your soil and pull the county permits.
Do you handle the county permits and inspections?
Yes, permits and inspections are handled for you. You never deal with the county paperwork.
Ready when you are
Get a fast, honest quote today
Serving Knox, Blount, Sevier & Loudon Counties. Call now or send your details and we'll reach out to schedule your free on-site estimate.
Call (865) 284-8837