PJ's Plumbing & Heating is an expert geothermal contractor in West Yellowstone, MT. We offer geothermal HVAC systems that deliver reliable and efficient heating and cooling no matter the ambient temperature. Geothermal heat pumps are more expensive than many other HVAC systems to purchase and install. That said, there are rebates and tax credits to help mitigate the initial investment. You can also recoup that investment over time due to the lower heating costs and the long equipment lifespan.