A larger size service will not give you more circuits if NEC has a limit on
the number of breakers in a box. You may find that you are required to have
one service disconnect per service, then divided up into multiple panels, or
simpler to just add a sub panel.

wrote in message
ups.com...
Is it possible to upgrade my electric panel from a 200 amp service to a
300 or 400 amp service. I want to finish my basement and add a new
patio over the next several years and I want to add quite a few new
circuits and I don't have the slots left in the current panel. I
really don't want to just add a sub panel, I would like to have a
second line into the house from the meter in for the second panel. Is
this possible? I would hand over all the work to a professional, but I
just want to know if what I want to do is possible.

Thanks,