Welcome to Coulson's Heating and Cooling. We have been servicing the Columbia Basin for over 30 years. When it comes to heating and cooling we have everything you need. We offer sales, service, and installation. We also offer service on all brands. We also specialize in residential mobile homes. Ask about our affordable service to Othello, Warden, Ephrata, Soap Lake, Quincy, George, Royal City, and everywhere in between. We do offer same day service in most cases, just call for details. Services: Sales Service Installation