Mountain Valley SepticSeptic service company in Oakdale, CA

Mountain Valley Septic is ranked #2 of 29 septic service companies in Oakdale by CR Score, with 58 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.

Mountain Valley Septic 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 Oakdale and 11 towns within 25 miles: Riverbank, Escalon, Waterford, Hughson, Modesto, Ceres, Salida, Bret Harte, West Modesto, Keyes and Ripon. 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.

Mountain Valley Septic has a rating of 4.5 from 8 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 Mountain Valley Septic on (209) 845-1800. The business is at Oakdale, CA 95361. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.