Specialty Welding

Dupill Group offers specialty welding, field machining and heat treating. We have expertise in multiple industries including both nuclear and fuel power generation, pipeline, petrochemical, refineries, and other industrial markets.

  • Wide Range of Alloys
  • Piping, Vessels, Valves
  • Installation

Our focus is always on quality and safety to make sure that your project gets done right.

Welding Services

Manual • Orbital/Machine • Exotic Materials • Closure Welds
Boilers • Pressure Vessels

Field Machining

Pipe Beveling • Pipe Cutting • Milling & Drilling
Flange Facing • Valve ID Repair

Heat Treating

Pre and Post Weld Heat Treating Services through Induction or Resistance Methods

Inspection Services

Contact us today to discuss your next project.

Quality Program

Dupill Group is committed to delivering products and services of an extremely high quality while growing our customer base in an effective and efficient manner. We satisfy all customer, 10CFR Part 21/10CFR50 Appendix B, ASME NQA-1, 10CFR830.122 Subpart A, and DOE Order 414.1D requirements and continually improve our processes to maintain total customer satisfaction and loyalty.

Specialty Welding






At the Dupill Group, we are experts in all things valve-related, offering top-notch maintenance, repair, and installation services. But what sets us apart is our specialty welding capabilities. Our highly skilled technicians are trained in the most advanced
welding techniques, enabling us to tackle even the most complex welding projects in the industry. From valve repair and modification to custom fabrication, we’ve got you covered.

With our dedication to quality, attention to detail, and commitment to meeting deadlines, we are the go-to choice for specialty welding. Trust us to keep your priorities front and center while providing unmatched welding solutions for all your needs. Contact us today and experience the excellence we bring to every project.

Specialty Welding

Dupill Group’s team of technicians is ready to help with proven welding and piping expertise for process piping, piping component fabrication and field installation.

  • Orbital and specialty welding
  • Safety-related welding and machining services (piping, vessels, valves)
  • Component repair & replacement
  • General supplemental welding & machining support
  • Rigging, fitting, field welding
  • Shop fabrication services

Specialty Machining

Dupill Group offers a variety of machining services performed both in shop and in the field. We can perform on-site repairs, modifications, and improvements.

  • Pipe Beveling
  • Pipe Cutting
  • Milling & Drilling
  • Flange Facing
  • Valve ID Repair

Heat Treatment

Dupill Group offers pre and post weld heat treating services through induction or resistance methods.

  • Stress relieving
  • Normalizing
  • Tempering steel
  • Precipitation hardening
  • Annealing

Staff Augmentation

At the Dupill Group, we can provide skilled craft workers trained to our standards to augment your team and work under your supervision.

Our technicians undertake a comprehensive vetting process to ensure that you receive the best personnel for the job.