Retro-Commissioning (RCx) is the process of applying Commissioning (Cx) activities to existing buildings. These buildings have either never gone through the Cx process or have not gone through the Cx process in a very long time. In the RCx process, we work to discover how your existing systems and equipment have changed operation or how they have lost efficiencies over time. Whether your facility had issues that were never corrected properly during design and construction or it has experienced significant “drift” over the years, the RCx process seeks to optimize your equipment and systems as a whole.