Septic System Installation in Columbia, SC
New systems start with a soil evaluation, since ground on the Sandhills side of the Midlands performs nothing like ground near the Piedmont line. We handle permitting through final install, matched to what your specific lot can actually support.
Permitting handled start to finish
Sized to your lot, not a template
Schedule a Site Evaluation
Why the Soil Evaluation Comes Before Everything Else
Before any system design happens, SCDES requires a soil evaluation that determines how well your specific lot will absorb and treat effluent. That evaluation — checking soil texture, structure, and depth to the water table or restrictive layers — is what actually decides whether you can install a standard gravity-fed system or need something more involved.
Skipping or rushing this step is how homeowners end up with a system that fails prematurely, or a design that passed on paper but never should have on the actual ground. Getting it right the first time costs less than replacing a failed system a few years in.
Permitting timelines through SCDES typically run several weeks depending on current review volume, and the physical install for a standard system usually takes a few days once approved. Budgeting six to ten weeks total from initial evaluation to a working system is realistic for most projects in the Midlands.
From Soil Test to Working System
Every step handled in-house, so nothing gets lost between contractors.
When a New System Is the Right Call
Not every septic problem calls for a full install, but these situations usually do.
- New construction with no existing system on the lot
- An existing system beyond what repair can reasonably fix
- Adding significant square footage or bedrooms beyond the original system’s design capacity
- Repeated drain field failures despite previous repairs
- Buying undeveloped land that’s never had a perc test
If you’re not sure which category your situation falls into, a site evaluation will settle it.
From Evaluation to Working System
Soil Evaluation
On-site testing to determine what system type your lot supports, typically scheduled within a couple weeks.
Design & Permit Submission
SCDES review typically runs several weeks depending on current volume.
Installation
A standard system install usually takes a few days once the permit is approved.
Final Inspection & Sign-Off
SCDES closes out the permit before backfill, and you get full documentation for your records.
System Types by Soil Condition
A rough guide to what’s typically appropriate where in the Midlands — your soil evaluation determines the actual requirement.
Your soil evaluation determines the actual system type required for your lot — this table is a general starting point, not a substitute for that testing.
Installation for Commercial Properties
Commercial systems are sized around projected occupancy and usage rather than a fixed household number, which makes the soil evaluation and design phase even more important to get right the first time.
We work with contractors and property owners on new commercial builds throughout Richland, Lexington, and Kershaw Counties, including standalone restaurants that will need grease trap infrastructure designed in from the start.
Bringing us in during the planning phase, rather than after site work has already started, gives you the most flexibility on system placement and design.
Installation Questions We Hear Often
Budget roughly six to ten weeks total for most projects, though permitting timelines through SCDES can shift that depending on current review volume.
Often yes, though it typically requires a mound system or similar engineered solution rather than a standard gravity-fed design. The soil evaluation will confirm what’s needed.
We prepare and submit the full application on your behalf as part of the installation process.
It’s rare for a lot to be entirely unbuildable, but it may mean a more involved (and costlier) system type than a standard gravity field. We’ll walk you through what your options actually are before you commit to anything.
SCDES permitting and inspection requirements make this impractical for most homeowners, and an improperly installed system is an expensive mistake to fix later. We’d recommend against it.
Installation Across the Midlands
We handle new installations and full replacements across Richland, Lexington, and Kershaw Counties, adapting system design to whichever side of the Fall Line your lot sits on.
Planning a build on undeveloped land? Get the soil evaluation done early, before other site work locks in a layout the ground can’t actually support.
- Richland County — Columbia and surrounding communities
- Lexington County — Lexington, Irmo, Chapin and surrounding communities
- Kershaw County — Camden and surrounding communities
Other Septic Services We Offer
Septic Inspections
For evaluating whether an existing system needs repair or full replacement.
Drain Field Services
Sometimes the field alone needs replacing while the tank stays in service.
Septic Tank Pumping
Once your new system’s in, this is what keeps it running for decades.
Start With a Soil Evaluation
Tell us about your project and we’ll get the evaluation scheduled to find out what your lot can support.
- Soil evaluation & perc testing
- Custom system design
- Full SCDES permit handling
- Professional installation
- Final inspection coordination
- As-built documentation for your records
Tell Us About Your Needs
We’ll reach out to confirm your appointment details.