Tri County SepticSeptic service company in Arlington, WA

Tri County Septic is ranked #32 of 78 septic service companies in Arlington by CR Score, with 53 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.

Tri County Septic is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 4:30 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

Serves Arlington and 11 towns within 25 miles: Marysville, Lake Stevens, West Lake Stevens, Everett, Tulalip, Snohomish, Eastmont, Mukilteo, Silver Firs, Lake Stickney and Mill Creek. 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.

Tri County Septic has a rating of 4.0 from 27 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 Tri County Septic on (360) 659-7077. The business is at 9226 84th St NE, Arlington, WA 98223. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.