ASME Inspection Specialists

ASME and National Board-certified engineers ensuring safety and compliance.

Industrial machinery in large factory setting

Certified ASME and National Board Services

Demaco Corporation specializes in pressure vessels, boilers, and heat exchangers, holding all necessary stamps from ASME and the National Board of Boiler and Pressure Vessel Inspectors. Our engineers are AWS-certified inspectors, providing expert installations, repairs, and preventive maintenance for power plants, pharmaceuticals, and other industries.

An organized emergency response team can be mobilized to your site within hours, and skilled craftsmen are available off-hours for urgent jobs. Our welders are certified per Section IX of ASME code and AWS standards.

Boiler and Pressure Vessel Services

Complete repair, supply, fabrication, and re-tubing for boilers (1 ton/H to 150+ tons/H).
Repair, supply, fabrication, and re-tubing for economizers, superheaters, and HRSG systems.
Boiler tube bending and fabrication.
Class surveys and consultant services.
Boiler washing, refractory, and insulation work.
Voyage/overseas boiler repair.
NDT reports.
ASME "S" & "U" and National Board "R" & "NB" stamp jobs conducted per respective codes.

ASME and National Board Certifications

"U" ASME Stamp: Manufacture of pressure vessels at Demaco locations and field sites.
"S" ASME Stamp: Manufacture and assembly of power boilers and piping at Demaco locations and field sites.
National Board "R" Symbol: Metallic repairs and alterations at Demaco locations and field sites.
National Board "NB" Mark: Metallic repairs and alterations per ASME "S" & "U" stamps at Demaco locations and field sites.

Get Immediate Boiler Support

Connect with Demaco’s ASME-certified experts to handle your boilers, pressure vessels, or heat exchangers. We provide fast, reliable service, inspections, and emergency support tailored to your facility’s needs.

Discuss Your Project Requirements