Mt. Eden Pool Service PO Box 485, Union City, CA94587 In business since 2002, Mt. Eden Pool Service provides cleaning and routine repair and maintenance in the…More Union City area. Service plans include one-time clean-ups, weekly scheduled cleanings and routine maintenance as well as new installations of commercial and residential pools, spas and fountains. Mt. Eden's service umbrella extends to the communities of Union City, Hayward, Castro Valley, Newark and Fremont. Visit the website to learn more and request a consultation.