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Generator Installation ∴ Generator Repair ∴ Frederick, CO ∴ Longmont, CO ∴ Frederick, CO ∴ Firestone, CO


Family owned and locally operated, M and M Heating, Cooling, Plumbing and Electrical is familiar with the challenges of weather in Longmont, CO and the entire Front Range. Extremes are often accompanied by power outages. Whether for a few minutes, a few days, or longer, going without power is inconvenient at best.

Expert Generator Services Longmont, Dacono, Eric, Firestone, Frederick, Johnstown, Longmont, Mead, CO

There’s also the potential damage and safety risks. While we can’t prevent power failures, we can make sure you’re prepared and avoid disruption. A permanently installed standby generator automatically starts up and takes over within seconds, providing safe and sufficient power for as long as necessary.

You don’t need to be on the premises or worry about refueling. You can determine whether to power a few main appliances or the entire household or commercial facility. M and M Heating, Cooling, Plumbing and Electrical caters design to your specific requirements and goals, ensuring a seamless transition of power and reliable operation.

Call our team for generator installation, maintenance & repair!

Partnering with industry-leading manufacturers, we bring you proven durability and groundbreaking innovation. Our fully licensed and insured technicians are proficient in new installation, replacement, regular maintenance, and repair of all makes and models of generators and provide prompt and skilled service across Longmont, Dacono, Eric, Firestone, Frederick, Johnstown, Longmont, Mead, CO. Contact us today!


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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.
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.
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.
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.
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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