J & J Systems Inc. in Hockessin, Delaware specializes in design-built service and complete residential and commercial Lawn & Garden System Professionals of lawn sprinkler systems, low-voltage outdoor lighting, and drainage systems.
For more than 30 years, our company, under Frank Jankosky, has designed, installed, serviced, and done complete renovations of irrigation systems. In working on residential or commercial settings, we have always taken the time to understand each client's needs and offered options that meet them, as well as their budgets.