It can cost a few hundred dollars to repair a water heater, or it could cost upwards of $1,000 if the damage is more extensive. In some cases, it might be more economical to replace the water heater altogether. Get quotes from several plumbers in your area to find out how much it will cost to repair your particular water heater.

It depends on the make and model of your water heater, and the specific repairs that need to be made. However, most water heater repairs cost between $100 and $300. So it's definitely worth repairing rather than replacing your water heater altogether.