Union City Pool Design & Construction, Hot Tubs & More The trusted name in Union City pool design & construction, hot tub sales, pool & spa service and pool supply store, Aloha Pools & Spas, specializing in quality craftsmanship and time-honored construction techniques. Customers know they can rely on Aloha Pools & Spas, your Union City pool builder, for consistent communication, and comprehensive customer care. Why consider anyone else? Aloha Pools and Spas is a family owned and operated business that began in 1969. Our dad built the first pool in our hometown with the help of his children and family. Now 40 years and thousands of pools later, Aloha has both the experience and knowledge to supply our customers with superior quality and workmanship. Our desire is to provide every customer with the most professional service they will find anywhere thus creating a level of satisfaction that is second to none.