Douglas County is the seventh most populated county in Colorado, and High Efficiency Heating and Air Conditioning has the team to provide expert HVAC service for indoor air quality and comfort. Whether you need HVAC service in Highlands Ranch, Castle Rock, Castle Pines, Castle Pines Village, Acres Green, the Pinery, Lone Tree, Roxborough, or our hometown of Parker, Colorado (since 2005), our experienced and highly-qualified team is available to provide trusted furnace repair, furnace maintenance, and furnace replacement in your home or business. While that famous Douglas County wind can influence the summer temperatures, most homeowners and businesses trust a team like High Efficiency Heating and Air Conditioning for thorough air conditioner maintenance, air conditioner service and repair, and new air conditioner installations to ensure that the Colorado summers are more comfortable. Our team is experienced in boiler service, boiler repair, and boiler maintenance. If you have grown weary of shoveling your driveway all winter, we stand ready to install a snowmelt system, as well! All of our work comes with a 100% guarantee.