1 review of Laguna Pools 'Don't use them! I hired them to repair my kool deck and install deco seal. They ruin my kool deck! They cemented areas that were not . Pool Service in Piscataway, NJ. See business rating, customer reviews, contact information and more. May 21, 2015 - See reviews for Laguna Pools in Plainfield, NJ at 705 Park Avenue from Angie's List members or join today to leave your own review. Laguna Pools at 705 Park Avenue, Plainfield, NJ 07060. Laguna Pools is owned by Jose Montes de Oca, who has 20 years of swimming pool and spa construction design, maintenance & repair experience. He works .