O2EPCM, Inc. is a prominent award-winning experienced firm providing Professional, Technical, Consulting and Management Services in the Planning, Design, Engineering and Construction Industry to Local, State, Federal Government Agencies, Utility Companies and Private Clients. • Perform building inspections for the construction/installation of exterior walls, roofing, waterproofing, interior framing, drywall, ceilings, flooring, interior finishing, doors and.