engineering plumbing and electric

I am looking for an experienced engineer to help with a commercial-scale project. The project requires knowledge of both plumbing and electrical engineering. It is essential that all codes and regulations specific to my location are followed. If you have the expertise and qualifications for this job, I am eager to hear from you! We are expanding to the other side of the building which is a mirror image of the ones on the attached plans. We are adding a machine there and running electric to it and plumbing (gas). We need to copy the attached plans to the other side as these have already been approved so can be used as guidance.