Geothermal.contractors

MacDonald Heating & Cooling is a full-service geothermal heating and cooling contractor serving Great Falls, Montana and surrounding central Montana communities from their location at 156 Wilson Butte Road. The company specializes in geothermal system installation, maintenance, and accessories, offering customers comprehensive year-round climate control solutions recognized by the EPA as among the most energy-efficient available. MacDonald's team emphasizes the long-term value of geothermal technology — combining energy efficiency, reduced utility costs, and environmental sustainability with reliable system performance. The business provides 24-hour emergency service and prioritizes proper system maintenance to protect customers' geothermal investment. Their strong local reputation reflects consistent customer satisfaction with installation quality and ongoing support. Contact MacDonald Heating & Cooling at (406) 799-4867 for geothermal system installation and maintenance in the Great Falls area. Verified active operator per https://macdonaldheating.com/ + https://www.chamberofcommerce.com/business-directory/montana/great-falls/heating-contractor/44697396-macdonald-heating-cooling (Bundle 5 audit 2026-05-29)