Trust Kato Pools with your weekly pool cleaning service in San Jose, CA When it comes to finding the right swimming pool cleaners, you can't go wrong with Kato Pools. As a locally owned and operated business based in San Jose, California, Kato Pools focuses on the well-being of their customers with every pool cleaning service. Depending on what you need, you can schedule routine pool maintenance or a one-time cleaning service. We also handle repairs, filter replacements and more.