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For everyday expectations, sudden challenges and long-term goals, M and M Heating, Cooling, Plumbing and Electrical is the key to achievement. We offer a full range of expertise, encompassing HVAC, plumbing, and electrical services. As a family-owned and operated business, we take pride in proving ourselves on each and every job, never taking your satisfaction for granted.

Expert HVAC, Plumbing & Electrical Services in Frederick, CO

Our skill set, resources, and background include new system design/installation, equipment replacement, seasonal upkeep, and all types of repairs for both residential and commercial applications. Contact us at (720) 608-3973 for accommodating appointments, timely arrival, and no-mess completion in Frederick, Colorado.


M and M Heating, Cooling, Plumbing and Electrical

110 South Bowen Circle
Longmont, CO 80501
Call Us: (720) 608-3973
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Call on our team for your heating, plumbing, electrical & A/C services in Frederick, CO!

M and M Heating, Cooling, Plumbing and Electrical is the go-to source for home and business owners across Longmont, Dacono, Eric, Firestone, Frederick, Johnstown, Longmont, Mead, CO. We’ve earned the Times Call Readers Choice Award the last five years in a row. Never sitting back, we continue to innovate, improve and insist on the best for our clients. For the latest in technological advances, unmatched energy savings, and total confidence in quality, simply choose M and M Heating, Cooling, Plumbing and Electrical.

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Word Around Town
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.
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.
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.
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.
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.
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Frederick, CO