Can I install a subpanel myself?

You can install a subpanel yourself in most US jurisdictions if you own and occupy the home, pull a homeowner permit, and pass inspection. Some cities require a licensed electrician for any panel work, so confirm locally first.

Be honest about the risk profile. The feeder connects at the main panel, where parts stay live even with the main breaker off. That is not a first-project environment.

The technical must-gets: a correctly sized feeder breaker and conductors, separated neutrals and grounds in the sub, a grounding electrode if it is in a detached building, and torque-to-spec terminations.

Cost tells the story too: 500 to 1,500 dollars hired out, roughly 200 to 400 in parts DIY.

The subpanel fill calculator checks your planned circuits and feeder before the permit application.