Does this electrical quote seem high?

[Jeremiah O'Neill]

Hi all,

I am in the process of purchasing an 1100 SF house.  The house currently has a fuse panel and outdated wiring.  We will be changing the layout so, figured we will upgrade all the electrical while we are at.  I had an electrician in for an estimate to replace the 100A fuse panel with a 100A breaker panel, and rewire the whole house.  The house is 3 beds/baths and is 2 stories  of living above a basement.  The panel is in the basemeant, and the service does not require upgrading from the street.  The estimate has come in at $20,000.  This is much higher than I was expecting, anyone have experience with pricing on similar sized jobs?

Thanks.