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Homes less than 10 years old will have a modern type breaker box. As far as cost goes, that is a good thing if an upgrade becomes necessary. In this type of house, the breaker box will be a minimum of 100 amps, and probably have enough available open circuits to allow upgrading without needing an entirely new panel. This type of upgrade can usually be completed between $363 and $1004.
There are 2 main types of standard breakers: 1  Single pole â These are single switches and likely make up most of the breakers in your breaker box. In the photo above, all the circuit breakers on the left side, except the service disconnect, are single pole. 2  Double pole â These look like two switches joined together.