# Sewer & Drain Cleaning in Warrenton, MO

> Main line and drain cleaning in Warrenton, MO along the I-70 corridor, from older homes near Main Street to newer Warren County subdivisions.

Canonical: https://stldrain.com/blog/warrenton-sewer-drain-cleaning
Last updated: 2026-10-26

Warren County, MO

Warrenton is a short run west on I-70 from our O'Fallon shop, and we clear plenty of clogged mains and slow drains here. GreenFlow Solutions opens the line with a cable, and if you'd like the full picture, a camera inspection shows exactly where and why it stopped up.

## Local conditions in Warrenton

As the Warren County seat, Warrenton has an older core around Main Street and the courthouse, where homes and small businesses may still have clay or cast iron sewer pipe. Those lines are prone to root intrusion and buildup that a quick snaking only partly fixes.

Newer subdivisions have filled in around the I-70 interchanges and along Highway 47 as more people commute east toward St. Charles County. These homes typically have PVC, and clogs there tend to be grease, wipes or construction debris left from building.

Outside city limits, many Warren County properties rely on septic systems rather than a city sewer. If you're on septic, let us know when you call so we understand what's downstream of the drain we're clearing.

## Areas we serve nearby

- Downtown Warrenton / Main Street
- I-70 corridor
- Highway 47 corridor
- Warren County

## Diagnose first

You see camera video of the problem, we locate and map the problem spots, and you get a written quote before any work.

## Frequently asked questions

### Do you serve Warrenton and Warren County?

Yes. Warrenton is in our regular service area along I-70.

### My home is on a septic system — can you still clear the drain?

We can clear the line from the house. Tell us you're on septic when you call so we plan the job correctly.

### Why does my new-construction home have clogs?

Leftover construction debris, grease and wipes are common culprits in newer PVC lines. A camera check can confirm there's nothing stuck in the line.

### How much will it cost?

Call 636-978-3478 for a free quote.

## Contact

|  |  |
| --- | --- |
| Phone | [636-978-3478](tel:6369783478) |
| Hours | Monday–Friday 7:00am–4:30pm |
| Address | 854 Lone Star Drive, O'Fallon, MO 63366 |
| Pricing | No posted prices — call for a free quote |

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