TRUSTED BY FORTUNE 500 COMPANIES

More than

you think

Premium construction and engineering solutions for industrial companies. Over 30 years of delivering excellence at scale.
Our ServicesContact Us
$2.0B+
Projects Delivered
0+
Enterprise Clients
0+
Years Experience
50%
Customer Satisfaction

Industrial Services Performed

Comprehensive construction solutions designed for the most demanding projects

Industrial Mechanical

Here goes your text … Select any part of your text to access the formatting toolbar.

Learn More

Piping Fabrication & Pipe Installation

Here goes your text … Select any part of your text to access the formatting toolbar.

Learn More

Refractory Services

Here goes your text … Select any part of your text to access the formatting toolbar.

Learn More

Building Solutions

Here goes your text … Select any part of your text to access the formatting toolbar.

Learn More

Shop Fabrication

Here goes your text … Select any part of your text to access the formatting toolbar.

Learn More

Architectual Engineering

Here goes your text … Select any part of your text to access the formatting toolbar.

Learn More

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.

Learn More

Millwright / Industrial Mechanical

Comprehensive industrial mechanical services including machinery rebuilds, installation, relocation, repair, alignment, fabrication, and system design for efficient and reliable plant operations.

Learn More

Metal Buildings

Comprehensive industrial building solutions delivering durable, efficient, and customizable structures tailored to meet complex operational and facility needs.

Learn More

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.

Learn More

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.

Learn More

Architectural & Engineering

ONEX Construction delivers fully coordinated, code-compliant architectural and engineering solutions that transform concepts into safe, buildable designs optimized for efficient construction.

Learn More

Structural Steel & Ductwork Fabrication

ONEX Construction provides end-to-end structural metal fabrication and installation services, ensuring precision-built components are seamlessly produced, delivered, and installed with single-source accountability.

Learn More

Metrology

From a single-service contractor to a full industrial solutions provider, Onex Construction has spent nearly 30 years building long-term client success through craftsmanship, reliability, and a commitment to continuous improvement.

Learn More

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.

Learn More

Millwright / Industrial Mechanical

Comprehensive industrial mechanical services including machinery rebuilds, installation, relocation, repair, alignment, fabrication, and system design for efficient and reliable plant operations.

Learn More

Building Solutions

Comprehensive industrial building solutions delivering durable, efficient, and customizable structures tailored to meet complex operational and facility needs.

Learn More

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.

Learn More

Why Industry Leaders Choose ONEX

We deliver unmatched expertise, precision, and reliability for enterprise-scale projects.
reveal reveal–up reavel-item

  • Billion-dollar project management
  • ISO 9001 certified quality systems
  • LEED Platinum certified projects
  • Advanced BIM & digital construction
  • Multi-site program delivery
  • Turnkey solutions

Ready to Build Something Extraordinary?

Let's discuss how ONEX can bring your vision to life with precision and excellence.
Schedule a Consultation