B&B Heating & Air Conditioning is a Carrier Factory Authorized Dealer, a recognition that is earned rather than given.  Our service team is fully insured, certified, and receives ongoing factory training at the highest level. To further protect your best interests, our technicians do not work off commission.  We provide honest, ethical, and no-pressure service, and offer recommendations that serve your long-term satisfaction.
All major furnace manufacturers strongly recommend an annual tune up by a qualified, insured, and trained technician staff. Failing to do so in many cases means voiding your manufacturer warranty, which could mean a total loss for your equipment if something goes wrong. In the grand scheme of things, the cost of an annual tune-up is well worth it as compared to the cost of replacing a furnace all together.
Locally owned and family operated, M and M, Heating & Cooling, Plumbing & Electrical customizes solutions to perfectly fit your requirements and lifestyle. We specialize in a wide range of services including plumbing, water heating, indoor air quality, and residential and commercial temperature control. Our team of highly trained and certified technicians are fully licensed and insured, adhere to strict service procedures, and meet exacting standards of quality. Call on M and M, Heating & Cooling, Plumbing & Electrical at (720) 443-6119 for dedicated service throughout Longmont, CO & surrounding areas, and have confidence in a rewarding experience and long-term results. With over eighteen years of satisfied customers, we take great pride in a job done right.
If your thermostat has a small lever that moves along a calibrated scale that indicates “longer” (not the heat temperature lever), you can try adjusting this—the heat anticipator. Just set it one calibration mark closer to the “longer” setting if the furnace goes off and on too frequently or one mark away if the furnace allows room temperature to rise too high or drop too low before going on or off. It may take several hours for the thermostat to stabilize at this setting, so wait a while and then adjust it again if necessary.
Your heating and air conditioning system naturally loses energy efficiency over time. This loss of efficiency is due to many factors, including dust and dirt, natural wear and tear, and buildup in drains or on burners. Keeping your heating system maintained with regular professional tune-ups can help to reduce these factors. During your tune-up, your maintenance technician will clean and check over your heating equipment, identifying areas of wear and tear. They can identify failing parts in need of replacement before they become a serious problem. A tune-up alone may instantly improve energy efficiency by up to 30%. You’ll also enjoy cleaner air and a cleaner residence because your HVAC system will be distributing clean air through a clean air filter. Perhaps one of the greatest benefits you’ll enjoy following a fall furnace or AC tune-up is decreased utility bills. A neglected HVAC system must work much harder to heat and cool your home, while a furnace or air conditioner that has been finely tuned can take less energy to maintain indoor comfort. Because your heating system will function more efficiently, it will deliver superior heating at lower cost than you otherwise may have had through the winter season.
"Jorge Mondragon was very prompt and did an excellent job replacing my old heater furnace with a newer one. He explained me very well the details and specifics about why I would need a 3.5 ton furnace with the specific BTU given the square footage of my house. I would highly recommend him as he is a sound professional and very prompt in his service."

As a Carrier dealer, with a wide variety of products to choose from, we can keep your family healthy and feeling comfortable all year long. We carry a complete line of indoor comfort equipment with innovations that raise the standards of comfort and reliability, including air conditioners, heat pumps, gas furnaces, programmable thermostats, humidifiers, ductless split systems, air cleaners, ultra violet lights, ventilators and zoning products. Let the experts at A. Johnson Heating & Air help you customize a solution that's right for you.


CM Heating performed a Gas Furnace Diagnostic. Customer wanted his echo bee thermastat installed that he had bought himself. Furnace was working fine just wanted his thermastat installed. He thought that the $99 service fee was going to cover that but explained to him what the service fee was for, and explained that there is a additional install fee for the stat. Customer didn’t want to pay the additional fee so I called the office had them listen to the call to make sure we explained to the customer correctly and to see how they would like me to proceed. So I quoted the customer the fee to install the thermostat but he didn’t want us to install it so I left.
CM Heating performed a Gas Furnace Diagnostic. Customer wanted his echo bee thermastat installed that he had bought himself. Furnace was working fine just wanted his thermastat installed. He thought that the $99 service fee was going to cover that but explained to him what the service fee was for, and explained that there is a additional install fee for the stat. Customer didn’t want to pay the additional fee so I called the office had them listen to the call to make sure we explained to the customer correctly and to see how they would like me to proceed. So I quoted the customer the fee to install the thermostat but he didn’t want us to install it so I left.
Call on Marky Mark's Heating, Cooling & Plumbing, LLC for high quality work, every time. We give our customers the personal attention they need to ensure satisfying results. Whether you require HVAC installation, seasonal maintenance, or skilled repair, our highly trained and experienced technicians focus on energy efficient, reliable, and long-term operation.
Cut down on energy costs and prevent damage to your furnace by addressing a gas furnace that's overactive or short cycling. Besides the need for consistently comfortable temperatures, this issue could cause long-term safety issues to your home, making it very important to address. From a faulty thermostat to a dirty filter, there are several possible causes to investigate.
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