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As your premier neighborhood service provider since 1998, M and M Heating, Cooling, Plumbing and Electrical has earned a reputation for customer satisfaction across Longmont, Dacono, Eric, Firestone, Frederick, Johnstown, Longmont, Mead, CO. We offer a reliable solution to all of your heating, cooling, ventilation, plumbing, electrical, and insulation needs. Whether for residential or commercial requirements, any type of challenge, we’ve got you covered.

Dependable HVAC Services & Remodeling in Longmont, CO

When you don’t want to wait, take a risk, or deal with disruption, M and M Heating, Cooling, Plumbing and Electrical is the right call to make. Reach out to us at (720) 608-3973 for convenient scheduling, punctual arrival, and no-mess completion of all jobs. Our highly trained, experienced, and dedicated professionals take those extra steps to organize, streamline and facilitate every stage of the process. We deliver start-to-finish satisfaction.


M and M Heating, Cooling, Plumbing and Electrical

110 South Bowen Circle
Longmont, CO 80501
Call Us: (720) 608-3973
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Longmont, CO Plumber, Electrician and Heating & A/C Contractor

M and M Heating, Cooling, Plumbing and Electrical is a family-owned and operated business. Excellent service for our customers is the number one priority. Our background translates into the know-how, resources, and total understanding of what it takes to ensure the efficient, safe, and lasting performance of essential systems. For new installation, replacement, crucial maintenance, and the repair of heating, air conditioning, plumbing, and electrical components, make M and M Heating, Cooling, Plumbing and Electrical your go-to in Longmont, Colorado!

Our HVAC & Plumbing Services in Longmont Include:

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Word Around Town
M and M replaced my 40 year old hot water baseboard boiler heater and zone valves. They did a great job. Professional and protected my new carpet. I would highly recommend them.
Brian W.
As usual, the service was timely and Stephen does an exceptional job. Very customer oriented, and explains any issues in detail so you can make educated decisions. Have used M&M for many years and extremely pleased.
Michael G.
I appreciate the honesty and integrity that he presented. Did not try to steer me in a direction that was not needed just to make a buck. I would recommend M and M just off that alone. That’s hard to...
Mike R.
So far, so good! The tech, Will, who came out to evaluate our AC and Furnace was quick and efficient, and located the issues that two other well-reviewed local HVAC companies didn’t catch. He made clear recommendations on how we...
Ben W.
Working with Chad was really great. He understood our needs, explained what would need to be done to accomplish our needs. He produced a reasonable quote and we have scheduled the time to get the wok done. Easy as one,...
Ken R.
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Longmont, CO