If you’re like a lot of people in an older home, the service is probably 60 amps and underrated. With the large demand for power in today’s home, a minimum of 100 amps is required. Larger homes will require 200 amps or more. Just as a guideline, a 100-amp service will run you around $1000. This will include a new meter, disconnect, wire, piping, panel and a weather head.