Septic and Sewer Experts
Serving the St. Louis Area

Quality Service Customers Believe In

SweenCo is a family owned and operated company that pride ourselves in treating our customers with respect and honesty. Our goal is to provide our customers with the highest quality services while educating our communities to ensure the well-being of the environments in and around St. Louis.

We are licensed in these counties for all your Sewer and Septic System Needs:
St. Louis, St. Charles, Jefferson, Lincoln, Franklin, Warren

What We Do

Septic System Installation

SweenCo takes great pride when installing a septic system. It is important to us that the homeowner is involved in all steps of the process and are comfortable with it. We want to be sure that the system is installed in the most optimal area available on site. That’s why we work closely with multiple soil scientists and engineers to ensure our customers are getting the best value and fastest service. We install all of our systems according to the county code and state standards.

SweenCo’s expertise ranges from conventional drainage systems to engineered and alternative advanced septic systems. We specialize in the installation of the advanced system, Drip Irrigation. This system can be installed on steep hills, rocky soil, and on rough terrain. We hold great working relationships with our municipalities to best help accommodate our customers.

Protecting our environment is very important to SweenCo. When determining the location of the drainfield installation, we make sure that the soils will properly treat the septic, as well as having an awareness of streams and underground water sources.

Septic Repairs

Periodically the need arises for repairs to be performed on a septic system. SweenCo offers repairs to lateral lines, PVC between tanks, and lines to the drainfield. SweenCo also installs outlet devices in septic tanks and new plumbing clean outs to existing tanks.

Contact us today for a FREE estimate and let us prove to you why SweenCo is the only septic service provider
you will ever need!

Sewer

SweenCo is a certified Sewer Installation and Repair Company. We complete sewer work in St. Louis County, St. Charles County, and Jefferson County. We are also MSD Sewer Construction Certified. Here are a few examples of the various types of jobs we do:

○ Point Repair
○ Manhole Construction
○ Construction of Storm and Sanitary Sewer
○ Raise to Grade
○ Lateral Repair
○ Ring Replacement
○ Frame and Cover Replacement