MacDonald Heating & Cooling

At MacDonald Heating & Cooling, we help keep homes in Great Falls, Montana, comfortable through every season. Whether it is time to replace a component in an existing furnace or install a new furnace, we focus on dependable comfort and energy efficiency for you and your family. We offer Ruud furnaces for reliable heating and exceptional value, helping your home stay warm while using energy efficiently.

We also offer Made in the USA Ruud air conditioners at an affordable price. Our cooling options are designed to provide lasting comfort, durability, and efficient operation, even during the hottest days of the year. For more flexible heating and cooling, we offer Ruud Floating Air ductless mini-split systems. Available in single-zone and multi-zone configurations, these systems can be matched to your comfort preferences while providing quiet operation and high energy efficiency throughout the year.

Geothermal systems provide another versatile option for heating and cooling projects of many sizes. Our geothermal equipment can be installed in existing homes and new construction, as well as small shopping centers and large commercial structures. From replacing part of an existing furnace to selecting a new air conditioner, ductless system, or geothermal solution, we work to provide comfort options suited to the needs of each project.