A&M Septic and Excavating, LLCSeptic service company in O'Fallon, MO

A&M Septic and Excavating, LLC is ranked #4 of 38 septic service companies in O'Fallon by CR Score, with 57 out of 100 as of November 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

A&M Septic and Excavating, LLC is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.

Serves O'Fallon and 11 towns within 25 miles: Wentzville, Lake Saint Louis, Dardenne Prairie, Weldon Spring, Saint Peters, Troy, Chesterfield, Wildwood, Warrenton, Saint Charles and Ellisville. The list is based on the business's location and the usual service radius for septic and sewer service. Confirm your address is covered when you call.

A&M Septic and Excavating, LLC has a rating of 3.1 from 18 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

Call A&M Septic and Excavating, LLC on (636) 262-9100. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.