For units MDC160-450 we offer a return to base service. Your unit is cleaned, inspected, and any faulty parts replaced. On completion the unit is returned to yourself. We aim to complete the return to base service within 72 hours of receiving your unit. For clients unable to shut down for such a period we offer an exchange unit scheme, a replacement unit is sent to site in advance of the shutdown to allow a rapid change over to take place. You then send us back your old unit so it can undergo its service.