AWS D1.1 · Field Crews
Mobile & Field Welding
TMG dispatches service trucks and AWS D1.1 certified welders for on-site fit-up, retrofits, repairs, and emergency response across SC, NC, and GA. Field welds are made to qualified procedures (WPS) so work done where the steel stands still passes inspection.

AWS D1.1 · Field crews
Certified field welding for on-site fit-up, retrofits, and repairs · SC · NC · GA
Welding where the steel stands
What does mobile field welding cover?
Mobile field welding brings certified welding to the jobsite when steel cannot go back to the shop. TMG rolls equipped service trucks and AWS D1.1 certified welders to the site for on-site fit-up, structural retrofits, weld and member repairs, and emergency response. Every field weld is made to a qualified procedure, so work done in place holds up to the same inspection as shop work.
The value is time. A rejected connection, a damaged member, or a late field change can stall the trades stacked behind the steel. Instead of demobilizing and re-fabricating, TMG fixes it where it is, to spec, and keeps the critical path moving. Because the same company fabricates and erects, a field call usually brings back a crew that already knows the frame.
When to call
Field welding services
Field connections, miter and level adjustments, and last-mile fit where shop tolerances meet real conditions.
Reinforcing, added supports, and structural modifications to steel that is already standing and loaded.
Cracked welds, damaged members, corrosion cut-outs, and connection repairs brought back to spec in place.
Rapid dispatch when a failed weld or damaged member is holding up the schedule or a life-safety condition.
Certified & documented
Why AWS D1.1 and a WPS matter in the field
A field weld is only as good as the procedure behind it. TMG welders are AWS D1.1 certified and work to qualified Welding Procedure Specifications, so a connection made on a lift is documented and defensible, not an undocumented patch the special inspector rejects.
The structural welding code for steel. Governs the welds TMG makes in the shop and in the field alike.
Written, tested weld procedures covering process, filler, joint, and position, so field work is repeatable and inspectable.
Welders qualified to the procedures they run, with the documentation projects and inspectors require.
Trucks across SC, NC, and GA from a Moncks Corner base, close to the Lowcountry commercial corridor.
Related scopes
Backed by a full fabrication shop
Field welding is strongest when the crew behind it can also fabricate the replacement part and erect the fix.
Structural steel
The erection scope where field welding closes out connections and handles field changes.
Structural steel →CSI 05Shop & rush fabrication
Need a replacement part fast? CNC plasma and rush tiers can cut and turn it around for the field fix.
Shop capabilities →05 50 00Miscellaneous metals
Added supports, brackets, and reinforcing that field retrofits often call for.
Misc metals →On mission-critical sites where downtime is measured in dollars, fast certified field welding keeps the schedule intact. See how single-source steel serves data centers.
FAQ
Frequently asked
What is mobile field welding?
Mobile field welding is structural welding performed on the jobsite instead of in a shop. TMG dispatches equipped service trucks and AWS D1.1 certified welders to handle on-site fit-up, retrofits, repairs, and emergency response, welding steel where it already stands rather than pulling it back to the fabrication shop.
Are TMG field welders certified?
Yes. TMG field welders are AWS D1.1 certified and work to qualified weld procedure specifications (WPS). Field welding is held to the same code and documentation standard as shop work, so structural connections made in the field meet the project specification and inspection requirements.
What is a WPS and why does it matter?
A Welding Procedure Specification (WPS) is the written, qualified recipe for a weld: process, filler metal, joint design, position, and parameters. Working to a WPS is what makes a field weld defensible under AWS D1.1 and acceptable to the special inspector, rather than an undocumented on-the-spot fix.
How fast can TMG respond to a field welding call?
TMG runs service trucks across South Carolina, North Carolina, and Georgia, with a Moncks Corner base that keeps crews close to the Charleston-area corridor. Emergency and schedule-critical calls are prioritized, and same-day or next-day response is common for local Lowcountry work. Confirm timing with our team when you call.
Does field welding tie into TMG structural work?
Yes. Field welding is the same capability that closes out TMG erection: our crews already field-weld connections on the frames we put up. Because we fabricate and erect, a field weld request rarely means bringing in a stranger, it means the team that knows the steel comes back to it.
Request a Quote
Need a certified welder on site?
Call for on-site fit-up, retrofits, repairs, or emergency response from AWS D1.1 certified crews across SC, NC, and GA.