Should you repair or replace your gas grill?
Updated August 2026
← Every repair-or-replace call
Keep repairing a gas grill while the firebox and lid are solid metal, and replace it once the firebox rusts through or the parts list passes half of a $300–1,000 new grill. Grills die from the body outward, not from the parts inward. A burner set runs $20–60, cooking grates $30–120, flame tamers $25–70, and an igniter kit $15–40, so a grill with a sound cabinet can be rebuilt for under $200 and a Saturday morning. Build quality decides how long that stays true: painted steel usually gives up around year 5, while heavy stainless and cast aluminum reach 10–15 years.
The short version
Grade the body first and the parts second. Lift the grates and study the firebox floor and the burner tubes. Flaking surface rust is cosmetic, but a spot you can push a screwdriver through means the grill no longer contains its own flame or grease, and nothing above that hole is worth buying. Everything else is consumable. A grill with an intact shell earns new burners every 3–5 years and new grates when the coating flakes, maybe $80–180 in total. The 50% rule shows up when the parts list, or those parts plus a $100–200 service call, tops half of a $300–1,000 replacement, and on a 10-year painted-steel grill it usually does.
Your situation, decided
| Situation | Verdict | Why |
|---|---|---|
| Uneven flames or clogged burner ports, firebox solid | Repair | A $20–60 burner set restores even heat on a sound body |
| Grates rusted or the coating flaking off | Repair | Cooking grates are a $30–120 consumable, not a grill failure |
| Igniter clicks with no spark | Repair | A $15–40 igniter kit or a fresh battery; light with a match meanwhile |
| Firebox floor or lid rusted through | Replace | The shell holds the flame and grease; a hole cannot be patched |
| Painted steel past 7 years needing burners, grates, and valves | Replace | The parts list clears half of a $300–1,000 grill |
| Gas smell at the hose, regulator, or valve | Repair now | A $20–50 hose and regulator; stop using the grill until it is done |
What each path costs
Repairs typically run $20–120; a replacement is $300–1,000 installed. A gas grill lasts 5–15 years depending on the body: painted steel about 5, heavy stainless or cast aluminum 10–15. Parts stay worth buying until the firebox rusts through. Price your own number on the home maintenance cost calculator before you commit either way.
The repair-or-replace call is easy when you know the unit's age and service history. OnOtto keeps both, plus the maintenance that delays this decision for years.
Start your home's service log, freeFrequently asked questions
How do I tell a rusted-through firebox from surface rust?
Poke it. With the grill cold, scrape the suspect area with a putty knife or the tip of a screwdriver. Surface rust flakes away and leaves solid metal underneath, and a wire brush plus high-heat paint handles that. If the tool goes through, or the metal flexes and crumbles, the firebox is finished. Test the burner tubes the same way, since they corrode from the inside out. Baked-on grease accelerates all of it, which is why a grease-caked grill ages faster than a clean one.
Are replacement burners worth buying for an older grill?
With a sound shell, yes, and it is the best value in grill repair. Burners corrode from the inside and typically need swapping every 3–5 years, and a set runs $20–60. Measure the old burner, match the venturi fitting, or order by the manufacturer part number. What does not pay is buying burners for a grill whose firebox is already perforated, because the new parts will outlive the body by years and you will throw both away together.
Do stainless steel grills actually last longer?
The good ones do. Heavy-gauge 304 stainless and cast aluminum bodies commonly reach 10–15 years, while thin painted steel often rusts out in 5–7, and coastal salt air shortens both. Grade matters more than the word stainless, since thin 430 stainless still rusts at the welds and screw holes. If you are weighing a repair against a purchase, our grill lifespan breakdown shows what each build really delivers before the firebox goes.
How much life does cleaning add?
Several years, mostly by keeping grease off bare metal. Baked grease traps moisture against the firebox and burner tubes, which is where rust starts, and it feeds flare-ups that scorch the finish and warp the tamers. A burn-off and brush after each cook plus a deep clean twice a season keeps the body dry and the ports open. Working through the grill maintenance checklist each spring catches a cracked hose or a spider-blocked venturi before the first cookout.