Summary. Comprehensive Energy Services, Inc. (CES) is an award-winning, self-performing provider and recognized leader in Design Build, Mechanical Contracting and Plumbing. CES provides a full range of advanced HVAC commercial, healthcare and industrial services, including mechanical engineering design, mechanical construction, plumbing, Indoor Air Quality (IAQ), preventative maintenance, system maintenance, repairs and replacement.. The Project Manager (PM) reports to the Branch Manager and is responsible for providing overall management direction for multiple projects at any given time. The ... view job details