SunDollar A/C & Heat services Allen, Carrollton, Celina, Coppell, Frisco, Highland Village, Lewisville, Little Elm, McKinney, Plano, Prosper, Richardson, Savannah, The Colony and the surrounding communities with their heating and cooling needs. Visit our service area page for more coverage details, call us at 469-777-0247, or request service online today.