Sewer & Drain

Drain & Sewer
Repair & Cleaning

From clogged kitchen sinks to full sewer line replacements, M&M has the equipment, experience, and honest approach to solve any drain or sewer problem.

Same-Day Service
Upfront Pricing
Family-Owned Since 1996
Limited Time Offer $750 Off Full Line Replacement Qualifying Full Line Replacement Free Estimate — Sewer Line Repair or Replacement Upfront Pricing, No Surprises Same-Day Availability

Complete Drain & Sewer Solutions

Your home's drain and sewer system works hard every day. When something goes wrong — a slow drain, a backed-up sewer line, or a pipe that's seen better days — you need a team that can diagnose the problem fast and fix it right the first time.

M&M brings nearly 30 years of experience and the latest technology to every job. From basic drain clearing to advanced pipe lining and hydro-jetting, we handle it all so you don't have to call multiple companies. Residential and commercial service available.

M&M technician performing sewer camera inspection
Why Homeowners Choose M&M

The M&M Difference

Why Longmont and the Front Range trusts us for drain and sewer service.

Same-Day Service

We respond fast because drain emergencies can't wait. Same-day appointments available Mon–Sat.

Camera Diagnostics

We see the problem before we fix it. Sewer cameras eliminate guesswork and prevent unnecessary work.

Residential & Commercial

From single-family homes to commercial properties, we have the equipment and expertise for any job.

Upfront, Honest Pricing

You'll know the cost before we start. No hidden fees, no surprises — just transparent pricing you can trust.

The M&M Family
4.9
★★★★★ 3,282 reviews
Alison Mosher
a month ago
★★★★★
We had both our water heaters go out on the same day. M&M came out immediately to inspect situation and got us scheduled for earliest replacement. The team was professional, communicated well and updated me on the process. We went with the tankless heater and couldn’t be more pleased. I highly recommend them!
lee robinson
2 months ago
★★★★★
Jim, their master plumber, came out to look at the shower valve that needed replacement and write up a quote. He came across as knowledgeable and trustworthy and gave a much more reasonable estimate than other companies. He came on time and their company scheduling system worked well. Blake came out to do the shower valve replacement soon after and was also excellent. Glad to have a company that I can use again for any future issues.
jesse pleiman
2 months ago
★★★★★
There’s no experience quite like having your furnace call it quits during winter, but because of companies like M & M Heating, cooling, and plumbing this problem was examined, addressed, and fixed all in 24 hrs! From the first inspection and diagnosis with Cody to meeting Tanner and Matt the next day with my new furnace for installation, all the customer service was top notch! They were all calm and respectful and very informative. I would highly recommend this company to any in Noco!
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Need Drain or Sewer Service?

Open 24/7  |  Same-Day Service Available

Call (720) 608-3973
Same-Day Service
Upfront Pricing
Residential & Commercial
100% Satisfaction Guaranteed

Drain & Sewer Service Across the Front Range

Proudly serving Longmont, CO and surrounding communities.

Primary Service Area

  • Longmont, CO
  • Erie, CO
  • Frederick, CO
  • Firestone, CO
  • Dacono, CO

Extended Area

  • Mead, CO
  • Johnstown, CO
  • Berthoud, CO
  • Niwot, CO
  • Gunbarrel, CO

Also Serving

  • Lafayette, CO
  • Louisville, CO
  • Superior, CO