Signs to investigate
- Persistent overheating
- Coolant loss without an obvious external leak
- White exhaust smoke after warm-up
- Combustion gases in the cooling system or low compression
ShiftyMechanics Calculate my costHead gasket work is labour-intensive and the final cost depends on why the gasket failed and what is found after the cylinder head is removed.
Calculate for my car → Free to use. No account needed.Pricing data checked . Guide reviewed 1 September 2026. How estimates work.
2018 Toyota Corolla · Australia
$1,738–$5,504For the 2018 Toyota Corolla example shown, ShiftyMechanics estimates $1,738–$5,504. Exact parts and the workshop's actual labour rate can change the result.
Yes. ShiftyMechanics shows the parts range, labour hours, Australian independent-workshop hourly-rate range and estimated total separately.
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