top of page


Specialty Welding | Heat Treatment | Machining | NDE | Staff Augmentation


ARC is a leading provider of specialty welding, machining, heat treatment, and NDT services to plant owners, OEMs, and maintenance and general contractors. As a specialty mechanical contractor, we execute maintenance and outage work; small and mid-sized capital projects; and equipment installation and fabrication projects.


ARC creates long-term value with proven welding and piping expertise for process piping, piping component fabrication and field installation.

  • Large component repair & replacement

  • Orbital and specialty welding

  • Safety-related welding and machining services (piping, vessels, valves)

  • General supplemental welding & machining support

  • Shop fabrication services

  • Rigging, fitting, field welding


ARC offers the following heat treatment variants.

  • Stress relieving

  • Induction 

  • Normalizing

  • Tempering steel

  • Precipitation hardening

  • Annealing


ARC offers a variety of machining services performed both at our shops and in the field. We execute on-site repairs, modifications, and improvements.

  • Pipe Severing & Beveling

  • Vessel & Window Cutting

  • ​​In-Place Flange Repair

  • Stud Removal & Thread Repair

  • Line Boring

  • Precision Milling 

  • Field Machining 

  • Valve Replacement

  • Boiler Maintenance

NDT (Non-Destructive Testing)

ARC offers a variety of testing capabilities to match your inspection needs. Our in-house services include:

  • MT (Magnetic Particle)

  • PT (Liquid Penetrant)

  • VT (Visual Inspection)

  • UTT (Ultrasonic Thickness Testing)

  • HT - Brinell, Rockwell, Vickers

  • PMI - Positive Material Identification

In collaboration with our service partners, we offer additional testing capabilities:

  • RT (Radiography) - Film and computed (Iridium, Selenium, Cobalt)

  • UT (Ultrasound) - Flaw Detection (Manual, Semi-Automated, Automated) PAUT, Shear Wave

  • UT (Ultrasound) - Corrosion Mapping (Manual, Automated)

  • ET (Eddy Current) - Surface, Tubular, Pulsed Thru-insulation (CUI)

  • GW (Guided Wave) - Magnetostrictive System (MsS)

2019-05-01_Valve Pic 02.jpg


A safe, reliable valve repair solution costs 40% less than a typical valve replacement. ARC Services offers a safe, affordable solution using specialized tooling and experienced craft.

  • Fast & efficient seat ring removal

  • Remote operated and liquid-cooled weld head tools

  • Difficult repairs including gate, check, stop and globe valves

  • Turnkey removal & replacement, including machining, welding, NDT inspections, and heavy rigging

STAFF AUGMENTATION - Skilled Craft Workers Serious About Safety

Organizations that find the right balance between Staff Augmentation and Managed Services will benefit by being able to focus on their core competencies. ARC supplies highly-skilled craft workers to augment your team and work under your direct supervision. Our flexible service delivery model delivers the best possible outcome for our clients.

bottom of page