Engineering Design Services

    O'Neal maintains a full-service design staff that covers all of the technical disciplines required to deliver a complete engineering design project, including civil, structural, architectural, piping, mechanical, and electrical engineers, as well as staff specializing in instrumentation, controls and fire production.

    In addition, O'Neal has the bandwidth needed to cover all phases of the engineering design process, including:

    Feasibility Studies and Preliminary Design

    O'Neal can provide planning and preliminary design services for a wide range of projects. Before you begin, contact us for project execution plans, constructability reviews, and design criteria outlines. We can also help you estimate probable construction costs and provide options and cost analysis. O'Neal can provide additional preliminary design services including: 
    • Process simulation
    • Process flow diagrams (PFDs)
    • Piping & instrumentation diagrams (P&IDs)
    • Process control strategy
    • Equipment/performance specifications
    • Equipment arrangements
    • Comprehensive schedules
    • Permitting

    Detailed Design

    Our experienced staff can help you visualize and design your project using state-of-the-art technology. We can also provide engineering design services for each of the major systems involved in your project. Our detailed design services include:
    • Process design
    • 3-D modeling
    • Equipment and material specifications
    • Sitework
    • Structures/buildings
    • Piping process and utilities
    • HVAC
    • Plumbing
    • Instrumentation
    • PLC/DCS/HMI software programming and configuration structures
    • Arc Flash Assessment/Short Circuit/Coordination Studies using SKM software


    When it comes time to start construction, O'Neal is ready to assist you with procurement services, including purchasing, bid tabulation and evaluation, requisitions, tracking and expediting, vendor prints, and contracts and payment terms negotiations. Our full-service approach to engineering design services enables us to take the stress out of the capital project design process, no matter the size or scope of your project.

      Start-up Support

      O'Neal provides additional support for your capital project after construction has finished. Our start-up support services include: 
      • Field assistance
      • System debugging and troubleshooting
      • Work order submittal and tracking
      • Record drawings
      • Checkout and process validation