How much does it cost to repair a blown head gasket?

The cost to repair a blown head gasket can vary significantly depending on the vehicle, engine size and the extent of the damage. While the head gasket itself is relatively inexpensive, the labour involved is substantial, making it one of the more expensive engine repairs.

Typical blown head gasket repair costs (2026)

What can increase the repair cost?

Is it worth repairing a blown head gasket?

Whether it's worth repairing depends on the vehicle's age, value and overall condition. For newer or well-maintained vehicles, replacing the head gasket is often more economical than replacing the entire engine or buying another car. However, if the engine has suffered severe overheating or has a cracked cylinder head or engine block, repair costs may exceed the vehicle's value.

Bottom line

A blown head gasket repair typically costs between £500 and £1,500 for most cars in the UK, although complex engines or additional damage can push the total well above £3,000. Obtaining a detailed inspection and repair quote can help determine whether repairing the engine is the most cost-effective option.

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