Knoxville Septic Co.
Septic system installation on a rural East Tennessee propertySeptic system installation on a rural East Tennessee propertySeptic system installation on a rural East Tennessee propertySeptic system installation on a rural East Tennessee property

Serving Knox, Blount, Sevier & Loudon Counties

Knoxville Septic System Cost

Get a real, upfront price for your septic system, not a vague online range. Free on-site estimate, financing available.

  • Licensed & Insured
  • Free On-Site Estimates
  • Upfront Pricing
  • Financing Available

Get your free on-site estimate

No obligation. Local, licensed & insured. Fast response.

Prefer to talk now? Call (865) 284-8837

Trying to price a septic system for your Knoxville property? Here’s the short version, and a link to the full breakdown.

Septic cost at a glance

New system: $6,000–$20,000 (a basic gravity system in good soil runs $5,500–$10,000). Replacement: $7,000–$25,000. Drain field: $5,000–$20,000. Tank only: $3,000–$8,000. Your real number depends on soil, system type, and county permits, so get a free on-site estimate.

See the full cost breakdown

For cost by system type, tank size, the perc test, per-county permits, and an interactive estimator, read our complete Knoxville septic system cost guide.

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.

Ask About Financing · (865) 284-8837

Common questions

What homeowners ask us first

How much does a septic system cost in Knoxville?

Most systems run $6,000–$20,000, with a basic gravity install often $5,500–$10,000 and tough soil or a full replacement up to $25,000. See the full cost guide for the breakdown.

Do you give free estimates?

Yes, free, on-site, so the price reflects your actual soil and property.

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

Get your free on-site estimate

No obligation. Local, licensed & insured. Fast response.

Prefer to talk now? Call (865) 284-8837

Call (865) 284-8837 Free Quote