Water Unlimited Atascadero Atascadero, CA believes in providing the best value and Water Filtration service to our clients in Atascadero, CA. Our motto is if you’re not happy we're not happy. All of our specialists are experienced and trained in their field. Water Unlimited Atascadero Atascadero, CA provides prompt, courteous and professional water installation service. We give you a fair estimate before we begin a project.