Greg's Septic ServiceSeptic service company in Kennewick, WA

Greg's Septic Service is ranked #3 of 20 septic service companies in Kennewick 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.

Greg's Septic Service is open 7 days a week. Its listed hours are Monday to Sunday, 7 AM – 5 PM. On Saturdays it is open 7 AM to 5 PM, and on Sundays 7 AM to 5 PM. Hours come from the business listing; holiday hours may differ.

Serves Kennewick and 4 towns within 25 miles: Finley, Pasco, Richland and West Richland. 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.

Greg's Septic Service has a rating of 4.8 from 44 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 Greg's Septic Service on (509) 586-2386. The business is at 14905 S Haney Rd, Kennewick, WA 99337. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.