Meiers Mechanical (M and M Heating & Air-conditioning) has been in business for over 14 years and is family owned and operated in Longmont, Colorado. We specialize in Furnace Installation, Furnace Repair, Air Conditioning Installation, Air Conditioning Repair. We service all brands, including Trane and Carrier. We install and service furnaces, AC units humidifiers and all over HVAC components for Longmont, Boulder, Erie, Broomfield, Loveland, Lyons, Frederick, Johnstown and Fort Collins. We also offer 247 emergency service.