Best septic services in Colorado

Based on Google ratings and review volume as of September 2026, the top rated septic services in Colorado are Dan's Drains and Digs, High Country Sewer & Septic, 4 Mile Septic. See the live ranked list, ratings, and contact details on this page.

Every company ranked on this page serves Colorado and the surrounding area, including Denver, Colorado Springs. Open any listing for its address, phone number and service area, then call the two or three closest to you. Distance is worth checking yourself: the nearest septic service is not automatically the best one, so this page ranks on rating and review volume first and leaves proximity to you.

After-hours availability is not part of a Google rating, so this directory cannot verify it for you in advance. A backed-up septic system or a flooded drain field is the case for calling instead of waiting for morning. Call the top rated septic services on this page and ask two things before you agree to anything: are you dispatching tonight, and what is the after-hours call-out fee. A company that answers both plainly on the phone is usually the one that actually shows up.

Septic work is one you cannot see, so trust matters. The best companies put the tank condition in writing, photograph what they find, and give you the real pump-out interval.