Mountain Valley PumpingSeptic service company in Oakdale, CA

Mountain Valley Pumping is ranked #1 of 29 septic service companies in Oakdale by CR Score, with 60 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 Pumping is open 7 days a week. Its listed hours are Monday to Friday, 6 AM – 3:30 PM; Saturday and Sunday, open 24 hours. 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, Waterford, Escalon, Hughson, Modesto, Ceres, Bret Harte, Salida, Keyes, West Modesto 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 Pumping has a rating of 4.4 from 29 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 Pumping on (209) 845-1800. The business is at 581 Hi Tech Pkwy, Oakdale, CA 95361. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.