How much does mobile welding cost?
Mobile welding costs vary by job type, material, and complexity. Here are typical published ranges so you know what to expect before you call.

Mobile welding is billed by the welder you hire, not by WeldRunners. We do not set shop rates and we do not have a 2026 national price list. What you pay is their hourly or flat quote, plus a trip/minimum, plus materials. Ask them for those three numbers in writing.
Most mobile rigs bill one of three ways:
Hourly. Labor on site, clock running after they set up. Materials and filler are usually extra. Code work (AWS D1.1 structural, ASME pipe) costs more than a mild-steel repair because the test and the procedure cost the welder money.
Flat job. Common when the scope is obvious: a cracked trailer tongue, a sagging gate, a bracket they can see in a photo. If they open it up and the crack runs into the frame, the flat quote should get revised before they keep welding.
Trip or minimum. Fuel, drive, and setup. A fifteen-minute weld still has to cover the truck getting there. After-hours and weekend calls are a premium on top of that, not a discount.
What moves the number: aluminum and stainless take different filler, gas, and skill than mild steel. Overhead and vertical take longer than flat. Tight access, a ditch, or a rooftop adds time. If the weld is structural or holds pressure, you are paying for a procedure and someone who can stand behind it.
Trailer frames, gates, railing, farm equipment, and non-pressure pipe are the jobs that usually justify a truck instead of a shop. Custom gates and stairs are fabrication, not a crack repair, and they price like fabrication. Do not treat a blog range as a bid.
To get a quote that means something: send photos from more than one angle, say the metal if you know it, and say whether the part is structural, cosmetic, or under pressure. Take a written number, not a verbal ballpark.
Hauling the part to a shop, waiting, and hauling it back is the other bill. For a machine that has to stay put, the truck is often cheaper once you count downtime. A WeldRunners listing is a way to find someone to call. Confirm rate, trip, insurance, and credentials with them before they strike an arc.