Is it possible to upgrade an electrical panel without re-wiring the entire house?

Answer: In some cases
Explanation: It depends on how old the wiring is, in the home.

Answer: In most cases
Explanation: In most cases if the wire is knob and tube or if the wire does not have a ground its highly recommended to rewire the house

Answer: Always
Explanation: The interior wiring of a house different than your panel is for everything starts Trump, so you don't have to replace everything past. That's unless there is electrical issues with the wiring

Answer: In most cases
Explanation: Unless the panel upgrade is part of a larger remodel, a panel can normally be replaced without re-wiring the entire house. At most, depending on the existing wiring, small portions of the wire may need to be replaced if damaged.

Answer: In most cases
Explanation: Sometimes the wiring is in such a condition that it needs to be replaced. There are ways to get around this but is very much a case-by-case situation.

Answer: Always
Explanation: remove old panel and install new panel. a professional will check load distribution to ensure power is not being wasted. if there is an unbalanced load, he should redistribute power for energy efficiency

Answer: In some cases
Explanation: Depends on the home wiring and if has grounding.

Answer: In most cases
Explanation: This depends on your local inspection department and what they require when a power upgrade is required.

Answer: Always
Explanation: Yes

Answer: Always
Explanation: Always, but upgrading the electrical panel does not upgrade the wiring in the house.

Answer: Always
Explanation: Yes as long as you dont have knob n tube wiring. If you have metal BX or romex your good to go.