Colorado SepticSeptic service company in Denver, CO

Colorado Septic is ranked #31 of 81 septic service companies in Denver 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.

Colorado Septic 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 Denver and 10 towns within 25 miles: Boulder, Superior, Gunbarrel, Louisville, Golden, Lafayette, Broomfield, Applewood, Evergreen and Arvada. 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.

Colorado Septic has a rating of 5.0 from 15 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 Colorado Septic on (720) 514-9703. The business is at 80 Big Springs Dr #304, Nederland, CO 80466, Denver, CO. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.