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Expert Construction Services in Ohio Valley
At GRAE CON, we have dedicated ourselves to excellence in construction for over five decades. Our company was founded on the principles of quality, safety, and client satisfaction, which continue to guide every project we undertake. We specialize in delivering schedule-driven construction services tailored to meet the unique challenges of industrial, commercial, and institutional clients across the Ohio Valley. As a family-owned business, we foster a culture rooted in integrity, continuous improvement, and collective responsibility, ensuring every structure we build reflects our unwavering commitment to excellence. Our team of experienced professionals, including self-performing tradesmen and a battle-tested management team, is equipped to tackle the most complex projects. We hold certifications in ASME B31.1, B31.3, and API 1104, and our partnership with Nucor Manufacturing ensures access to industry-leading building systems.

From general contracting to specialized electrical and industrial maintenance services, we prioritize client needs, offering 24-hour support to minimize downtime and maximize efficiency. Our design/build approach guarantees single-source responsibility, streamlining the construction process while maintaining strict cost controls. With a focus on safety, accountability, and quality, we build lasting relationships with clients by consistently delivering solutions that exceed expectations. Our legacy of completed projects, including power plants, healthcare facilities, and educational institutions, stands as a testament to our ability to transform challenges into successful outcomes.
Services
General Contracting Electrical Construction Industrial Maintenance Design/Build Pre-Engineered Construction Process Piping Power Generation Construction
Highlights and features
  • We offer over 50 years of experience in industrial and commercial construction.
  • Our self-performing trades ensure precision and accountability in every project.
  • 24/7 emergency services minimize downtime for critical industrial operations.
  • Family-driven values prioritize integrity, safety, and long-term client relationships.
  • Certified expertise in complex projects, including ASME and API standards.
Associations and certifications
  • ASME B31.1
  • ASME B31.3
  • ASME B31.8
  • API 1104
  • Nucor Builder
What people say
Reliable and professional Excellence in industrial projects 24/7 emergency responsiveness Strong safety focus Timely completion
Services
Industrial Maintenance
GRAE CON provides 24/7 industrial maintenance to prevent costly downtime in steel, energy, and polymer industries. Our team handles equipment repairs, conveyor systems, and emergency outages with precision. Clients benefit from rapid response times and expertise in minimizing operational disruptions.
Electrical Construction
We deliver full-service electrical construction, including high-voltage cabling, transformer assembly, and control panel fabrication. Our IBEW-certified workers ensure safe, code-compliant installations for long-term facility efficiency and reliability.
Design/Build
Our design/build approach offers single-source responsibility, integrating conceptual design to final construction. This method reduces timelines, controls costs, and eliminates coordination challenges between designers and builders.
Process Piping
GRAE CON fabricates and installs industrial piping systems under ASME B31.1 and API 1104 standards. Our 24-hour shop ensures fast turnarounds for critical infrastructure in gas processing and manufacturing facilities.
Power Generation Construction
We construct power plants for fossil, nuclear, and renewable energy sources, optimizing efficiency to reduce emissions. Our expertise includes maintaining operational continuity during complex construction phases.
People
Robert A. Gribben, III
President
Robert leads Grae-Con with a focus on operational excellence and innovation, leveraging his civil engineering expertise and family construction legacy.
James McKeegan
Vice President
James brings 16+ years of project management and estimation experience, ensuring client needs align with construction execution across sectors.
Jesse Johnson
Vice President - Marietta
Jesse drives operational efficiency with 18 years of leadership in engineering and project coordination for large-scale builds.
Bill Clinefelter
Chief Financial Officer
Bill oversees financial operations with 30+ years of construction industry experience, ensuring fiscal accuracy and strategic growth.
Questions
What construction services does GRAE CON specialize in?
GRAE CON specializes in industrial, commercial, and institutional construction, including electrical systems, process piping, maintenance, and design/build projects.
How does GRAE CON ensure project quality and safety?
We prioritize safety through rigorous protocols, certified tradesmen, and a culture of accountability, ensuring compliance with ASME and API standards.
Do you offer 24/7 emergency services?
Yes, we provide 24-hour support for critical maintenance and emergency repairs to minimize industrial downtime.
Which regions does GRAE CON serve?
We serve the Ohio Valley, Utica Shale, Marcellus Shale, and West Virginia Polymer Alliance regions.
What sets GRAE CON apart from other contractors?
Our self-performing trades, 50+ years of experience, and family-driven values ensure unmatched accountability and client trust.