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Septic repair
Septic excavation in Cleveland, TN
Some septic jobs need digging: uncovering buried lids, exposing a broken line, replacing a tank or opening up a failed drain field. Here is what septic excavation involves around Bradley County, what drives the cost and how to keep yard damage small.
Lid digging
Line repair
Tank replacement
When it’s needed
When does a septic system need excavation?
- Lids are buried and need to be uncovered for pumping or an inspection
- A cracked, crushed or root-filled line between the house and the tank
- A broken baffle or outlet tee that has to be reached and replaced
- Adding risers so you never have to dig again
- Tank replacement after a collapse or failure
- Drain field line or distribution box repair
The job
What happens during septic excavation?
- Locate first. We find the tank and lines with a locator, probe and the permit drawing so we only dig where needed.
- Mark utilities. Tennessee law requires an 811 locate request before mechanized digging, so buried power, gas and water lines get marked.
- Dig carefully. Lids and lines are uncovered by hand; bigger jobs use a small excavator.
- Make the repair. If the work needs a permit, it is inspected before backfill.
- Backfill and tidy up. Soil goes back, gets compacted and is raked out.
Cost
Septic tank, drain field and septic system excavation
Septic tank excavation
Most tank digging is to uncover buried lids, expose a broken baffle or outlet tee, or set risers. Close to the tank we dig by hand, because a machine bucket can crack a concrete lid or wall. A full tank replacement means pumping the old tank first, then removing or filling it the way the permit requires.
Drain field excavation
Drain field work means opening the trenches to repair a crushed line, replace a distribution box or lay new lines. Bradley County red clay is slow to dig and holds water, so timing matters. A new or replacement field follows a design set by the permit, often on fresh ground next to the old one. See drain field replacement cost.
Septic system excavation for a new install
A new system is dug in stages: the soil evaluation, the hole for the tank, the line from the house and the field trenches. All of it happens under a TDEC permit in Bradley, Polk and McMinn counties, or a Hamilton County Groundwater permit in Ooltewah and Harrison. See new septic systems.
Where we dig
Septic excavation across Cleveland (37311, 37312, 37323), Ooltewah, Harrison, Charleston, McDonald and Georgetown. Call (423) 380-0854 and tell us what is going on.
Cost
What affects the cost of septic excavation?
- Depth: lids 6 inches down are quick; 3 feet down takes far longer.
- Soil: Bradley County red clay and rock are slow to dig. See clay soil and septic systems.
- Access: fences, slopes and tight side yards limit equipment.
- What’s on top: driveways, patios and landscaping add work.
- Permits and inspections for tank or drain field work.
Uncovering lids by hand is usually a small add-on to a pump-out. Line, tank and drain field work is priced after we see the site. For ballpark numbers see septic system costs in Tennessee and drain field replacement cost.
Permits
Do you need a permit for septic excavation?
Uncovering lids or pumping a tank does not need a permit. Replacing a tank, adding drain field lines or installing a new system generally does. In Bradley, Polk and McMinn counties that goes through TDEC; in Hamilton County it goes through the county’s Groundwater office.
See TDEC septic permits in Bradley County and Hamilton County septic permits.
Your yard
How to limit yard damage
- Add risers while the lids are open so future service needs no digging
- Mark sprinkler lines, invisible dog fences and buried lighting before we arrive
- Keep vehicles off the drain field before and after the work
- Plan bigger jobs for drier weeks when the clay isn’t saturated
From our crew
What do we see when we dig?
We look at both baffles on every pump-out around Cleveland. Here’s what shows up most.
- Wet red clay that holds water around the tank
- Lids two feet or more down on older homes
- Roots packed into pipe joints near trees and shrubs
- Lines crushed under driveways or parking areas
- Broken outlet tees that let solids reach the drain field
FAQ
Questions we hear about this
Do I need a permit to dig up my septic tank?
Not to uncover the lids or pump the tank. Replacing the tank or drain field generally needs a permit.
How long does septic excavation take?
Uncovering lids often takes under an hour. A line repair is usually done the same day. Tank or drain field replacement can take several days plus inspection.
Will septic excavation ruin my lawn?
There will be some bare soil where we dig. We backfill and rake it out, and grass usually comes back within a season.
Is an 811 call required before digging?
Tennessee law requires an 811 locate request before mechanized excavation, so buried utilities are marked first.
Can septic excavation be done in winter?
Yes, as long as the ground is not frozen hard or completely saturated.
Can a septic tank be dug up with an excavator?
The bulk digging can be done with a small excavator, but the last part near the tank is dug by hand so the bucket does not crack the lid or walls.
Does drain field excavation need a permit?
Repairing or replacing drain field lines generally needs a permit: TDEC in Bradley, Polk and McMinn counties, or Hamilton County Groundwater in Ooltewah and Harrison.
Related: Septic repair · Septic tank locating · Drain field repair · Septic tank replacement
Last updated October 29, 2026.
Need septic digging done?
Call and tell us what is going on. We’ll find the tank, dig only where needed and fix the problem.