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Welding Services

Day & Zimmermann provides experienced, highly qualified welders to perform everything from large turn-key projects to small emergent scopes for nuclear and fossil utilities nationwide.  Our team of professional personnel includes project and construction managers, weld test shop supervisors, engineers and designers, manual and semi-automatic welders, welding machine operators, machinists, and ASME-certified welding technicians.


Welding Methods

  • Shielded metal arc welding (SMAW)
  • Gas metal arc, pulsed gas metal arc, and metal inert gas welding (GMAW/GMAW-P/MIG)
  • Flux cored arc welding (FCAW)
  • Gas tungsten arc gas welding (GTAW/TIG)

Quality Stamps

  • ASME S & U Stamps
  • National Board R Stamp
  • National Board NR Stamp
  • 10CFR50 App B Program


  • Project and construction management
  • Experienced management personnel – project supervisors, QA/QC personnel, and planners
  • Staff augmentation for highly qualified welders, pipefitters, general foremen, and foremen
  • Manual and semi-automatic machine/orbital welding
  • Automatic tube and pipe welding
  • Specialty material welding, including P91 alloy
  • Pipe and vessel cutting
  • Thermal cutting
  • Weld overlays
  • Milling operations
  • Pipe rigging
  • Complete QA/QC Program
  • 180+ welding procedures using GTAW, SMAW, GMAW/GMAW-P, & FCAW processes
  • Welding procedure specification development and qualification

How Can We Help You?

Please contact us for additional information or any questions you may have.   We will follow up with you as requested.

Contact Us