5 Best Drain Cleaning Services in Denver (2026)

What people praise

• Reviewers describe technicians who explain what the camera shows before recommending work
• One reviewer said two other companies had suggested a full sewer line replacement, and the line was cleared instead
• One reviewer called it the lowest quote they received for a line replacement
• Phones answered by staff who book appointments quickly, according to one review

Worth knowing

• Google lists weekday hours only, 8 AM to 5 PM
• Its focus is sewer lines, so a simple sink clog may be better suited to a general plumber

What people praise

• One reviewer had drain backups that two other plumbers had not solved; the technician arrived the same day and worked out the cause
• Technicians who explain the problem and keep the customer updated, according to several reviewers
• A restaurant reviewer credited the team with tracing a smell that had lasted over eight years
• Long Google hours, including Sundays

Worth knowing

• Reviews describe larger repair and reroute jobs, so ask for a written quote on anything beyond a basic clearing

What people praise

• Google tags one review about a master bathroom problem as drain cleaning, and the reviewer called the technician knowledgeable and honest
• Reviewers mention clear explanations from the technician, including on a water heater installation and an annual inspection
• Covers plumbing, heating, cooling and electrical under one name

Worth knowing

• Drain cleaning appears on its website and in one review; its other reviews are mostly about water heaters and system checks
• Its 4.6 rating is the lowest on this list, with more than 750 reviews behind it

What people praise

• A reviewer with a basement sewer main clean-out problem was offered three repair options and called the work clean
• A homeowner said a technician returned with a jetter and got three drain systems working
• A Sunday-evening call was booked for the next morning, according to one reviewer
• Technicians who walk through the options before starting

Worth knowing

• Reviews are more mixed on larger installation jobs; one detailed reviewer described rework on a commercial sink install

What people praise

• Reviewers describe quick responses to urgent calls
• One reviewer said the plumber fixed two leaks in simpler ways than another company's recommendation to replace a water heater
• A condo association reviewer praised its handling of leak investigations and valve replacements
• A reviewer who waited weeks for a city permit said the crew stayed patient and finished to code

Worth knowing

• Drain cleaning is listed on its site, but its reviews focus on other plumbing work
• Fewer reviews than the other names here, at more than 190