Certified Hot Tub Dealer The Spa Doctor of Valley Oak, CA carries hot tubs and swim spas from top brands like Hot Spring and Freeflow Spas. We are also a premier showroom of high-quality outdoor products and service center for Fireplaces, Stoves, Inserts, and Broil King Grills. We offer Hearth Products from Ironstrike, Mendota and American Fyre.