YES, the Weathermatic SmartLink control platform will retrofit perfectly to most automatic irrigation systems. Because the retrofit upgrade to Weathermatic involves the control system only, it should operate with your existing irrigation pipes, valves and sprinklers and not require any digging. However, if you have 2-wire controllers the decoders will need to be replaced in addition to the controller. We can upgrade 2-wire systems, but they will need to be priced separately as they do not qualify for the As-a-Service program.