Primoris Design & Construction

Primoris Design & Construction (PDC) is a wholly owned subsidiary of Primoris Services Corporation (PSC) based in Tyler, Texas. PDC is supported by the global resources and financial support or our parent company, PSC, a leading infrastructure and energy services provider.

PDC’s mission is to provide top quality professional engineering design services for construction and related projects to both major and independent clients. We are committed to high standards of client service, staff development, ethical practice and reasonable profit. PDC strives to be recognized for our EPC excellence, systems integration and commitment to sustainability.

We seek to add value through experience, trust, innovation, and creativity; aligning ourselves with our clients' goals, delivering services that meet their quality, schedule and cost objectives, while at the same time maximizing benefits to our own employees through mutual trust, dependability, and productivity.

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Primoris Design & Construction (PDC), located in Tyler, Texas, is comprised of highly qualified personnel and registered professional engineers. PDC provides services in the fields of process engineering, detailed engineering design, procurement, fabrication, and construction services. Market segments serviced by the firm include refining, petrochemical, mid-stream gases, industrial gases, and industrial groups with facilities needing complete EPC services, updates, or repair.

PDC is a project oriented provider of hydrocarbon processing units. We offer a single source accountability for EPC projects, while also performing detailed designs for third party licensor process. The company teams with Primoris’ strong construction subsidiaries which provides a competitive edge unparalleled in the current market

Our core staff of professional engineers and designers have been working together within various heritage companies for an average of over 25 years. These individuals encompass the experience that allows us to achieve our goal of building loyalty and key and long term relationships with our clients. We trust our clients will seek us out for our reputation as a truly integrated EPC firm whose ability to collaborate extends beyond our own walls to embrace our clients, and the entire project team.


PDC, in conjunction with its Primoris subsidiary companies can offer the following services:


  • Refinery, Gas, and Petrochemical Hydrocarbon Processing Units, H2 and Syngas Plants
  • Feasibility and Estimate Studies, PDP/BEPs, Pre-FEEDs, FEEDs, FEL/Phased Engineering, Detailed Engineering
  • Civil, Structural, Mechanical, Electrical, Instrument/Controls, Piping Engineering Services
  • Value Improvement Engineering

Project Management Planning and home office services including

  • Project Controls and Scheduling
  • Firm and Budgetary Cost Estimating
  • Design Development
  • Construction Management


  • Procurement Planning and Purchasing of Equipment and Materials
  • Subcontracting and Vendor Sourcing
  • Expediting, Inspection, Logistics and Transportation
  • Warehousing and Inventory
  • Spare Parts Development


  • Pressure Piping, Boilers, Structural Steel and Vessels
  • Fabrication and Assembly of Process and Pipe rack Modules


  • Material Management
  • Field Services Construction Management and Scheduling
  • Subcontract Management
  • Safety and QA/QC

Commissioning and Startup

  • Commissioning planning and execution, and system handover
  • Management of 3rd party equipment and systems vendors (i.e. – compressors) commissioning
  • Assistance in startup and training


Our target market is small to mid-sized EPC Projects, fixed price and reimbursable, for:

  • Upstream Oil and Gas Production Process Units
  • Midstream Oil and Gas Treating, and Fractionation Process Units
  • Downstream Refining Process Units
  • Downstream Petrochemical and Chemical Process Units
  • Utility Process Units such as Hydrogen, Syngas , Sulfur Complexes, Industrial Air/Gas
  • Other Process Units such as Gas to Liquids and Waste to Energy Units



6101 S Broadway, Suite 200
Tyler, TX 75703
Phone: 903-730-9400