Read what our many satisfied customers say about Moncrief. We consistently receive 5-star reviews from both our commercial and residential customers. Moncrief's legacy of comfort and trust, as well as our great team and customer service are second to none. Contact us today to schedule an appointment or inquire about our Total Comfort Service Plan. Moncrief Heating & Air Conditioning is the company to provide the services you need in Roswell and Marietta. Call us at 404-350-2300.
Extensive training – Over the years, we have had to learn continually and update our skills to stay top-of-the-line. We continue to offer state-of-the-art products today with the service skills to match. We offer 800 hours of training classes to our technicians every year. They also have access to factory resource personnel and engineers for consultation.
We’re located in Florissant and service the surrounding area, so feel free to swing by if you’re searching for a new furnace or want to set up an appointment to have one of our techs visit your home and help you figure out which system is ideal for your home. Schedule furnace repair or a furnace service appointment with B & B Heating & Cooling using our online scheduler, or if you’re in need of help a little more quickly, give us a call at 314-838-9800. 
We are service professionals! As licensed contractors and specialists in the field of heating and air-conditioning, we have the tools, the equipment, and the experience to keep your equipment running smoothly all year long. If it is emergency service that you need, Twenty-four hours a day, seven days a week, we are available to assist you! To help reduce service emergencies, we offer service agreements to keep your comfort system running at peak performance.
"LIFESAVER! Came right out to our home to save us from the heat. I called around 11 and they sent someone by the afternoon 1:30. Carlos fixed our AC on the spot! Very professional and knew what the issues were and fixed them all as fast as possible! Otherwise we would all be toast in this Texas Summer HEat. Thank you Carlos with Ruben's AC! Excellent service"

Air Conditioning and your heating source are intertwined. In the summer it’s the AC system you’re concerned with. In the winter it’s the furnace. Do your AC service annually, just like you maintain your furnace. Leaves and dirt and yard debris will get lodged in the air conditioning condenser unit, the part that sits outside. Cleaning this trash from your condenser will improve the efficiency of your HVAC system and help your air conditioner to last longer, avoid AC service and save you on your electric bill.


North Winds Heating & Cooling is an Okemos-owned full-service HVAC company that is available for all your heating and cooling needs in Lansing and the surrounding cities. We proudly serve the Greater Lansing area with a complete range of heating & cooling services – including residential, commercial, and industrial. Our  HVAC technicians have over 30 years combined experience in the heating and cooling field and will treat your repair or installation job like it’s their own. Our experienced HVAC team has the latest diagnostic tools and equipment needed to perform a variety of services that we offer such as air conditioning installation & repair, furnace repairs, and HVAC maintenance. 
When a furnace maintenance is performed a combustion analysis should be performed to identify any problems that couldn't be found by a visual inspection. You want to know what the Carbon monoxide level your furnace is producing as well as the oxygen/CO2 levels and stack temperate. The analyzer will also give you a calculated efficiency rating with the information the analyzer receives. You should have >100ppm of Carbon monoxide output during normal operation of your gas furnace. When you have higher numbers or CO numbers increasing during operation their is a problem with the furnace the technician should then find the cause of. This is just a brief explanation I'm trying to get across to those who get their furnace maintained and to those who don't! Check to see if anyone in the company has a NCI certification for carbon monoxide/combustion analysis.

Furnace Service Company

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