Mark's Septic ServiceSeptic service company in South Bend, IN

Mark's Septic Service is ranked #11 of 50 septic service companies in South Bend 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.

Mark's Septic Service is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves South Bend and 9 towns within 25 miles: Mishawaka, Notre Dame, Plymouth, Nappanee, Granger, Elkhart, La Porte, LaPorte and Dunlap. 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.

Mark's Septic Service has a rating of 5.0 from 37 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 Mark's Septic Service on (574) 303-4306. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.