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Can a Rusted Grill or Fire Pit Be Welded?
Quick answer
- Thin gas grill with rust holes: replace it. Patching thin, rusted firebox steel rarely lasts and it's near a propane tank.
- Heavy steel fire pit, smoker or grill cart: weld it. Thick steel takes a weld or a patch plate well.
- Published prices: about $150–$400 for grill structural frame repair and $400–$1,000 for fire pit structural reinforcement.
Why
It comes down to how thick the steel is. Many gas grills use thin steel fireboxes. Fix My Grill's rule of thumb: if you can see daylight through the firebox floor, the damage is structural, and it advises against home-welded patches on thin steel.
Heavy fire rings, fire pits made from thick plate, offset smokers and grill carts and legs are a different story. Those are good candidates for welding a crack, re-attaching a leg or letting in a new patch plate.
How to tell if yours is fixable
- With the grill cold and the tank off, shine a light up through the firebox. Pinpoints of light are holes.
- Poke along the bottom and grease path with a screwdriver. If it sinks in, the steel is gone.
- Feel the thickness at an edge. Thin sheet is a replace; thick plate or pipe is weldable.
- Check whether a replacement firebox or cook box is sold for your model, and the price.
- For fire pits and smokers, check legs, seams and the bottom for cracks and burn-through.
What the welder does
- Remove the propane tank, burners, grates and anything flammable. Clean off grease.
- Grind back to solid metal around the crack or hole.
- Weld the crack, or cut out the rusted section and weld in a patch plate.
- Re-attach broken legs, handles or brackets.
- Coat with high-temperature paint.
Fair shop price
| Job | Published price | Source |
|---|---|---|
| Grill structural frame repair | $150–$400 | Key Grill Repair |
| Grill lid repair or replacement | $100–$300 | Key Grill Repair |
| Grill burner replacement | $100–$250 | Key Grill Repair |
| Fire pit grate replacement | $100–$250 | Buzz Fire Pit Repair |
| Fire pit structural reinforcement | $400–$1,000 | Buzz Fire Pit Repair |
| Fire pit fire bowl replacement | $500–$1,200 | Buzz Fire Pit Repair |
These are published prices from the sources listed, not quotes. Your price depends on rust, access, metal type, and travel. Typical welder labor runs about $60–$125/hr nationally (HomeAdvisor).
Price sources: Key Grill Repair · Buzz Fire Pit Repair · HomeAdvisor.
Cost to replace instead
For most box-store gas grills, a rusted-through firebox means it's time for a new grill. Fix My Grill also says to replace a grill that has had a grease fire. Heavy smokers and custom fire pits are usually worth repairing.
Replace it instead when…
- It's a thin-steel gas grill with holes in the firebox floor.
- The grill has had a grease fire.
- No replacement firebox is sold for your model at a sensible price.
DIY or hire a pro?
Welding a heavy steel fire pit or smoker is great hobby-welder practice. Never weld near propane, and thin grill fireboxes usually aren't worth welding at all.
🚩 Ripoff red flags
- Furnace cement or a pop-riveted plate in the grease path of a grill.
- Paying shop rates to patch a thin, cheap grill worth less than the bill.
- Welding near a connected propane tank or gas line.
🧰 Tools & parts for this job
- High-temperature grill paintProtects a repaired firebox, pit or smoker.
- Replacement grill gratesRusted grates are a cheap swap.
- Replacement burnersOften the real problem on a gas grill.
- Heavy steel fire pit ringThick steel lasts and can be welded later.
- Heavy-duty grill coverKeeps rain off so rust doesn't start again.
As an Amazon Associate, CanItBeWelded.com earns from qualifying purchases. These are Amazon search links, not endorsements of a specific product; links never change a verdict.
⚠️ Safety
Disconnect and remove the propane tank and gas lines before any grinding or welding. Clean off grease first.
Galvanized or painted parts give off fumes when welded. Grind coatings off and ventilate.
This is general information, not an inspection. If in doubt, have it looked at in person. See our safety disclaimer.
Need this fixed in Delaware?
If you're dealing with a heavy steel fire pit, smoker or grill cart near Middletown, Townsend, Smyrna, Dover, Newark and the Wilmington area, across New Castle and Kent County, and into Eastern Maryland around Elkton, RickTheWelder can take a look at the shop in Townsend or on site. Send a few photos and request a quote at rickthewelder.com. Not sure it's worth fixing? Start with a $19 photo review.
Common questions
Can a rusted grill be welded?
Thick steel grills and smokers, yes. Thin box-store gas grills with rust holes in the firebox are usually better replaced.
How much does it cost to repair a grill frame?
Key Grill Repair lists about $150–$400 for structural frame repair and $100–$300 for lid repair or replacement.
Can a steel fire pit be welded?
Yes. Heavy steel fire rings and pits weld well. Grind to clean metal, weld or patch, then use high-temp paint.
Is it safe to weld on a gas grill?
Only with the propane tank and gas lines removed and the grease cleaned off. Many thin grills aren't worth the risk or cost.
Can a rusted smoker firebox be repaired?
Usually, if it's thick steel. Cut out the rotted area and weld in a new patch plate.
Related guides
Sources
- Key Grill Repair – Cost of Grill Repairs
- Buzz Fire Pit Repair – Fire Pit Repair Costs
- Fix My Grill – Repair vs Replace a Rusted Grill Firebox (2026)
- HomeAdvisor – Cost to Weld Metal
Prices and sources checked 2026-10-19. Ranges are updated as we find better data.