More than
you think
Industrial Services Performed
Industrial Mechanical
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Piping Fabrication & Pipe Installation
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Refractory Services
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Building Solutions
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Shop Fabrication
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Architectual Engineering
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Piping Fabrication & Pipe Installation
Full-service piping installation and support across multiple industries, including expert welding, testing, system integration, and ongoing maintenance to ensure safe, efficient, and reliable operations.
Millwright / Industrial Mechanical
Comprehensive industrial mechanical services including machinery rebuilds, installation, relocation, repair, alignment, fabrication, and system design for efficient and reliable plant operations.
Building Solutions
Comprehensive industrial building solutions delivering durable, efficient, and customizable structures tailored to meet complex operational and facility needs.
Underground Piping
End-to-end underground piping installation for process, utility, storm, and sanitary systems with precise grading and safe excavation. Includes testing, documentation, and ongoing maintenance with seamless site coordination.
Refractory Services
Onex delivers end-to-end engineering and construction solutions. Including refractory installation, turnkey project management, and value-driven optimization. Specialties span across heavy industrial sectors like steel, glass, metals, chemicals, and environmental services.
Architectural Engineering
End-to-end underground piping installation for process, utility, storm, and sanitary systems with precise grading and safe excavation. Includes testing, documentation, and ongoing maintenance with seamless site coordination.
Structural Steel Fabrication
End-to-end underground piping installation for process, utility, storm, and sanitary systems with precise grading and safe excavation. Includes testing, documentation, and ongoing maintenance with seamless site coordination.
Why Industry Leaders Choose ONEX
We deliver unmatched expertise, precision, and reliability for enterprise-scale projects.
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- Billion-dollar project management
- ISO 9001 certified quality systems
- LEED Platinum certified projects
- Advanced BIM & digital construction
- Multi-site program delivery
- Turnkey solutions

Partnerships & Certifications









