In this question, I asked about problems between my circuit breaker for a circuit shared by my microwave and sump pump. The conclusion was that another circuit should be added to support the microwave on its own. I have open spots for breakers in the box. Assuming I have an electrician do this job, how much should I expect it to cost? If location is a variable, I'm in central Maryland.
Note that the new circuit could be added to support only the sump-pump in an unfinished basement. So my thinking is that it should be one of the easiest additions possible.