Steel cracks. Vibration, heavy loads, and rough yards find every weak weld and every tired bracket.
A broken air tank bracket, a cracked step, a torn-off mud flap hanger, or a crossmember that cracked under a heavy load can take a truck or trailer out of service over a small part. Finding a fabrication shop, moving the equipment, and waiting in line can cost days.
Mobile welding brings the welder and fabrication tools to you. It’s especially useful for trailers sitting in drop yards, equipment on job sites, and trucks that can’t safely be driven with a broken mount.
What our Mobile Welding covers
- Cracked and broken brackets — air tanks, fuel tank straps, battery boxes, and exhaust
- Trailer crossmember repair
- Landing gear mounts and braces
- Mud flap hangers and fender brackets
- Bumpers and bumper brackets
- Steps, deck plates, and catwalks
- Rear impact guard (underride guard) repair
- Headache racks and flatbed stake pockets
- Dump body and tailgate hinge repairs
- Toolbox and service body mounts
- Fabricating simple brackets and plates to replace broken parts
What can't be done on the roadside
- Main frame rail repairs on tractors — many manufacturers restrict welding on heat-treated frame rails, and improper repairs weaken the frame
- Welding on fuel tanks, or near fuel, DEF, or hydraulic lines without proper preparation
- Structural suspension components like spring hangers and axle seats that require manufacturer-approved repair procedures
- Large fabrication jobs that need a shop, a lift, or a press
Aluminum work depends on the equipment and the part, so tell dispatch the material when you call.
Fix it on site or tow it?
If the broken part is a bracket, mount, crossmember, or step, welding it on site is usually faster than moving the equipment — and often the only practical option for a trailer sitting in a drop yard without a tractor.
If the damage is to a main frame rail, a suspension hanger, or anything structural that holds the axles or fifth wheel in place, the repair has to follow manufacturer guidance and may belong in a shop. We’ll tell you if that’s the case.
What to tell dispatch when you call
The more dispatch knows up front, the better the odds the mechanic shows up with the right parts and tools on the first trip.
- What’s broken and what it holds
- Whether the part is steel or aluminum
- The rough size of the crack or break
- Whether fuel, DEF, hydraulic, or air lines are close to the repair area
- Where the truck, trailer, or equipment is parked, and whether it’s loaded
Truck makes & engines we work on
- Freightliner
- Peterbilt
- Kenworth
- Volvo
- Mack
- International
- Western Star
Class 6 through Class 8 trucks, including engines from Cummins, Detroit Diesel, PACCAR, Volvo, Mack, Navistar, and Caterpillar.
Mobile Welding around the harbor & the South Bay
Welding calls come from the drop yards along Harry Bridges and Anaheim, from construction and demolition operations across the South Bay, and above all from the dump truck, roll-off, and equipment operators working out of Compton and Rancho Dominguez. Chassis damage from yard strikes is a steady source of work too.
Freeways
Service areas
Mobile Welding FAQ
Can you weld on a truck frame?
Main frame rails on most heavy trucks are heat-treated, and many manufacturers restrict welding on them. Brackets, crossmembers, and other components can often be welded. Frame damage has to be evaluated case by case.
Do you weld aluminum?
It depends on the equipment and the part. Tell dispatch the material and what’s broken so the right equipment is brought.
Is it safe to weld near a fuel tank?
Only with proper precautions. Fuel, DEF, hydraulic, and air lines near the repair need to be protected or moved, and welding directly on fuel tanks is a job for specialized shops.
Can you weld a cracked trailer crossmember?
Yes, cracked crossmembers are a common mobile welding repair. Severely damaged or missing crossmembers may need to be replaced.
Do you do custom fabrication?
Simple brackets, plates, and reinforcements, yes. Larger custom fabrication projects are better done in a shop.
Can you weld in rain or wind?
Rain and high wind affect both safety and weld quality. The mechanic will judge conditions on site.