Reliance Energy Services is your go-to propane, natural gas and heat pump installation company in the Holden, ME area. Whether you need a propane heating system installed, an outdated HVAC system converted to a natural gas system, or an oil boiler or furnace serviced or installed, we can make it happen. Our licensed professionals can also handle all your plumbing repair and installation needs. Your home is in safe hands with Reliance Energy Services.