Types of Septic Systems We Install
- Standard gravity-fed systems.
- Engineered and alternative systems for challenging sites.
- High-capacity systems for large households or commercial use.
Expert Septic Tank Installation in the Midlands
When it comes to installing a new septic system, precision and experience matter. At WeCo Septic & Excavation, we provide professional septic tank installation services for new home construction, system replacements, and property upgrades throughout the Midlands.
Our licensed team handles every step—from site evaluation and permitting to excavation and final installation—ensuring your new septic system is built to last, meets all South Carolina regulations, and operates efficiently for decades.
We assess your property’s layout, soil composition, and water table to determine the best system design.
We handle all permitting requirements and create a detailed installation plan.
Our team excavates, sets the tank, connects system components, and installs the drain field with precision.
We complete final checks to ensure proper function and restore your property.

Proper Tank Sizing Based on Household Needs
Compliance with All State and Local Codes
Correct Grading and Drainage for Optimal Performance
High-Quality Materials and Advanced Equipment
A septic system is a long-term investment in your property’s value and functionality. Poor installation can lead to drainage issues, environmental hazards, and costly repairs. Our expert process ensures your septic system is installed correctly the first time.



Site Evaluation & Soil Testing - We assess your property’s layout, soil composition, and water table to determine the best system design.
Permitting & Planning - We handle all permitting requirements and create a detailed installation plan.
Excavation & Installation - Our team excavates, sets the tank, connects system components, and installs the drain field with precision.
Final Inspection & Backfilling - We complete final checks to ensure proper function and restore your property.
Decades of experience with South Carolina soil and septic requirements.
Fully certified for residential and commercial installations.
From excavation to final inspection.
No surprises—just quality work at fair rates.
Start your septic installation project with the experts who do it right the first time.
We don’t just talk tough — we show up, do the work, and leave people glad they called. Here’s what homeowners, builders, and property managers across West Columbia have to say about working with WeCo Septic Pumping & Excavation.