Boiler Installation & ASME Code Welding Services
Precision Welding. Code-Stamped. Industrial-Ready.
Need Reliable Boiler Installation & Code Welding in the Chicago Area?
When steam matters, failure is not an option.
At DePue Mechanical, we bring decades of field-proven expertise in boiler installation, ASME-certified code welding, and NBIC R‑stamp repair to every project. Whether you're upgrading systems or responding to an emergency outage, our team delivers precision, safety, and speed.
CAPABILITIES
All Your Boiler Needs—Handled In-House
- Why Choose DePue for Boiler & Code Welding?
- Our Boiler & Code Welding Capabilities
- Certified & Trusted in the Field
- Need Emergency Boiler Repair or Fast-Track Installation?
Why Choose DePue for Boiler & Code Welding?
Our boilermakers are certified by the American Society of Mechanical Engineers (ASME) and follow all applicable pressure vessel and welding codes. From emergency weld repairs to complete system installations, our team brings the skills, safety focus, and professionalism your plant demands.
- Certified Excellence ASME “S” Stamp and NBIC “R” Stamp certified welders
- 24/7 Emergency Service Rapid mobilization for critical repairs or shutdowns
- Turnkey Installation From skid setting to integration with process piping
- Pressure Vessel & Steam Line Experts Specialists in high-pressure systems
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Our Boiler & Code Welding Capabilities
We specialize in complete mechanical support for new boiler installations, repairs, and retrofits:
- High-pressure steam boiler installation and replacement
- Welding for pressure vessels, steam lines, condensate piping
- Retubing, burner upgrades, and refractory repair
- Pre-fabricated piping skids for faster field installation
- Hydrostatic testing and QA/QC documentation
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Certified & Trusted in the Field
Our welders hold active ASME and NBIC certifications, with full in-house tracking of weld logs, procedures, and documentation. We support industrial clients across Illinois in food & beverage, chemical, power, and pharmaceutical sectors.
Explore our work: View our High-Pressure Steam Boiler Project →
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Need Emergency Boiler Repair or Fast-Track Installation?
We offer same-day service calls, shift work options, and detailed field planning to minimize downtime and maximize safety.
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Certifications
Highest Industry Standards.
Proven by the Stamps We Carry.
DePue Mechanical is certified by the National Board with the following ASME stamps:
“R” Stamp: Repair and alteration of pressure vessels
“U” Stamp: Manufacture of new pressure vessels
“PP” Stamp: Fabrication of pressure piping
These credentials allow us to legally and confidently execute complex pressure-retaining work other contractors won’t touch.
Ready for a Boiler Contractor Who Knows the Code?
Let’s talk about your pressure vessel project, your timeline, and how we can make it happen—safely, quickly, and to spec.
Recent Projects
Code Welding, Tight Turnaround, Zero Compromise.
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Case Study: High-Pressure Steam Boiler
Case Study: High-Pressure Steam Boiler
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