How much does it cost to set up a mobile welding rig?

Full setup with a used truck, used welder, service body, and tools: $50,000–$70,000. New diesel chassis with new equipment: $80,000–$120,000. Most welders start with used equipment to keep capital costs down.

What do mobile welders charge per hour?

Typical rates are $95–$175/hr for general repair and fab work, $150–$200/hr for specialty stainless or pressure work, and $175–$250/hr for remote oilfield or pipeline emergency calls. Most rigs charge a 2-hour minimum plus mileage.

Do mobile welders need insurance?

Yes. Commercial general liability ($1M+), commercial auto, and ideally workers' comp even as a solo operator. Most clients require proof of insurance before letting you on-site. Total insurance cost year 1: $5,000–$11,500.

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Specialty · Mobile rig

Mobile rig welder business.

Mobile rig welding is the closest thing to running your own welding business with no overhead beyond your truck. You haul a Lincoln SA-200, a SA-300, or a Miller Big Blue 400 mounted in a flatbed or service body, and you go wherever the work is.

The truck — your $50–$100k decision

Most mobile rigs are built on a Ford F-350, Ram 3500, or Chevy Silverado 3500. New diesel chassis: $60–$80k. Used 3-5 year-old: $35–$55k.

On top of that, you need:

- **Welder** — Lincoln SA-200 (used $4–8k, gold-standard for stick), Lincoln SA-300 (used $7–12k, more output), Miller Big Blue 400 (new $12–15k, multi-process). Pick one based on the work you target. - **Body** — service body ($8–15k) or flatbed ($5–10k). Service body has compartments for rod, gas, tools; flatbed gives you cargo flexibility. - **Accessories** — generator, plasma cutter ($3–5k), tool boxes, lights, fuel cans, grinder, oxy-acetylene set. Budget $5–10k in tools. - **Hitches and trailers** — if you do ranch / ag work, a goose-neck flatbed trailer ($8–15k) lets you move equipment.

Realistic total: $50–$100k for a working setup. Many welders build incrementally — used truck + used welder year 1, upgrade by year 3 if the business works.

Insurance, taxes, business structure

Insurance you actually need:

- **Commercial general liability** — $1M minimum, often $2M required. $1,500–$3,500/yr. - **Commercial auto** — your personal auto policy doesn't cover work use. $2,500–$4,500/yr depending on driving record and rig value. - **Workers' comp** — only required if you have employees, but most clients ask for proof anyway. $1,200–$2,500/yr for solo operator (varies wildly by state). - **Inland marine / equipment** — covers your tools if stolen. $500–$1,000/yr.

Total insurance year 1: $5,000–$11,500. Get an LLC for liability protection ($150–$500 to file, depends on state).

Tax structure: most solo mobile welders file as an LLC taxed as sole proprietor (Schedule C) or S-corp (more complex but saves on self-employment tax once you clear ~$60k net). Talk to a CPA — the right structure can save you $5k+/yr.

Pricing and finding work

Typical mobile rig rates:

- **General fab/repair** — $95–$135/hr - **Specialty (stainless food/beverage, pressure)** — $150–$200/hr - **Remote oilfield / pipeline emergency** — $175–$250/hr - **Minimum charge** — most rigs charge a 2-hour minimum + mileage

Where the work comes from:

1. **Existing relationships** — ranchers, farmers, fleet ops who already trust you. Build a reputation and word-of-mouth carries it. 2. **WeldRunners** — list your mobile rig in the directory, post your service area, customers find you (free). 3. **Cold calls to fleet shops** — local trucking, equipment rental, marina, ag co-ops. They have constant repair needs. 4. **Oil/gas operators** — direct contracts with smaller operators who don't want to ship work to a shop. The hardest to break in but the highest margin. 5. **Insurance and damage repair** — body shops + insurance adjusters sub out frame and structural repair. Build a relationship with 2-3 local body shops.

The realistic first year

Year-1 expectations for a solo mobile rig welder, conservative case:

- **Hours billed**: 800–1,200 (vs. 2,080 a shop welder works — the rest is driving, quoting, marketing, breakdowns, paperwork) - **Average rate**: $120/hr blended - **Gross revenue**: $96k–$144k - **Truck + welder + fuel + insurance + consumables + supplies**: $35k–$50k - **Net year 1**: $50k–$95k

If you went into this from a $25/hr shop job ($52k gross), you might net the same in year 1 — but you own the equipment, the customer relationships, and the upside. Year 2–3, when efficiency improves and rate goes up, $120k–$180k net is realistic.

Frequently asked

How much does it cost to set up a mobile welding rig?: Full setup with a used truck, used welder, service body, and tools: $50,000–$70,000. New diesel chassis with new equipment: $80,000–$120,000. Most welders start with used equipment to keep capital costs down.
What do mobile welders charge per hour?: Typical rates are $95–$175/hr for general repair and fab work, $150–$200/hr for specialty stainless or pressure work, and $175–$250/hr for remote oilfield or pipeline emergency calls. Most rigs charge a 2-hour minimum plus mileage.
Do mobile welders need insurance?: Yes. Commercial general liability ($1M+), commercial auto, and ideally workers' comp even as a solo operator. Most clients require proof of insurance before letting you on-site. Total insurance cost year 1: $5,000–$11,500.

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