Your Trusted Colorado Plumbing, Cooling, Heating
& Electrical Experts

For nearly 30 years, our family-owned team has delivered honest, reliable service across the Front Range. We show up on time, explain your options upfront, and stand behind every job.

(720) 608-3973 Contact Us
$88 A/C Tune-Up Complete System Check Free Plumbing Issues? No-Cost 2nd Opinion $99* Main Line Drain Clearing Free Camera Inspection

Our Services

Comprehensive home comfort solutions for heating, cooling, plumbing, and electrical needs.

Plumbing

Heating & Cooling

Electrical

Insulation

Colorado's Most Reliable Plumbing & Home Services Contractor

From burst pipes and stubborn clogs to full re-pipes and water heater replacements, our licensed plumbers handle it all. We show up on time with upfront pricing, diagnose the real problem, and fix it right the first time — no upsells, no surprises.

As a family-owned business with nearly 30 years on the Front Range, we treat every home like our own. Beyond plumbing, our NATE-certified team also covers heating, cooling, electrical, and insulation — so one trusted call takes care of everything.

Learn More About Us (720) 608-3973
M&M technician performing AC installation

The M&M Difference

Why Longmont and the Front Range trusts us with their home comfort.

The M&M Family

One Year Test Drive

100% satisfaction guaranteed on all installed equipment. If you're not happy, we'll make it right.

Same-Day Service

Available 365 days a year. When your comfort is at stake, we're always here.

NATE-Certified Technicians

Licensed, insured, and certified. Our team brings expertise to every job.

Family-Owned & Operated

28+ years serving the community. We treat every customer like 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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Ready for Reliable Home Comfort?

Open 24/7  |  Same-Day Service

Call (720) 608-3973
No Hidden Fees
Upfront Pricing
Flexible Financing
Satisfaction Guaranteed

Proudly Serving the Front Range

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