We’re Serving The Heating, Cooling and Plumbing Needs of Longmont and beyond. Our service areas expand into Broomfield, Lyons, Erie, Firestone, Fredrick, Dacono, Mead, Berthoud, Johnstown, Platteville, Louisville, CO, Lafayette, CO and everything in between. M and M Heating and Air Conditioning is the leading choice for installation and repair and service for heating, cooling and plumbing in Longmont, CO. We are dedicated to our craft and each technician holds multiple certifications. We have solutions for Longmont furnace and A/C installation, minor and major repair services, and maintenance programs to keep your HVAC system in the best working condition for all of the seasons. Humidifiers can also keep your respiratory system in working condition. Colorado’s dry air can be harsh on your skin and furniture and on those with sinusitis, nose bleeds, allergies and asthma. Adding a humidifier to your home can help alleviate those symptoms as well as help your home feel warmer in the winter months. Our indoor services feature, whole house humidifiers, whole house electronic air cleaners, whole house air purifiers, and programmable thermostats. If your nose is not the one clogged up and it’s your drains, we now offer plumbing services including water heater repair and replacement, drain clogs and rooter service for toilets, faucets, sinks and bathtubs. When you need a Longmont Colorado HVAC / Plumbing company that you can rely on, call M and M Heating, Cooling and Plumbing. Our company is dedicated to providing all of our customers with high-quality, efficient, and affordable service that they can depend on. We have built our reputation on providing our customers with the best service and support the HVAC industry has to offer. Come see why the Longmont Times Call Readers’ has awarded us as the Best Heating and Air Conditioning Service and the Best Plumbing company in 2016. We Provide Longmont HVAC services including: Air Conditioning Heating Swamp Coolers Indoor Air Quality Commercial HVAC Services Financing Available. Contact us today, and let us know how we can help you!