How long electrical panel replacement takes depends on the scope of the work, the condition of the existing wiring, whether the utility needs to disconnect power, permits and inspections, and what is found once the old panel is opened. A simple like-for-like swap is usually much quicker than a project that relocates the panel or changes the service, but there is no single timeline for every home.
Understanding the main factors helps you plan for the power interruption and the overall schedule.
Scope of the Replacement
Replacing a panel in the same location with similar circuits is generally faster than a project that also moves the panel, adds circuits or changes the electrical service. Larger homes with many circuits take longer because each circuit has to be disconnected, identified, reconnected and labeled.
If the project includes additional work, such as new circuits for an EV charger or remodel, that time is added to the panel replacement itself.
The setting matters too. Panels in finished basements, tight garages or homes with subpanels can take more time to work around safely.
Existing Wiring and Installation Conditions
The condition of the wiring entering the panel affects timing. Wires that are too short, damaged or unsuitable may need extending or replacing before they can be connected to the new panel. Grounding and bonding may also need to be corrected.
Unexpected conditions, such as hidden damage, corrosion, previous improper work or limited space around the panel, can add time once the old equipment is opened up.
Utility Coordination, Permits and Inspections
Some replacements require the utility to disconnect and reconnect power at the meter. When that is needed, the schedule depends partly on coordinating with Rocky Mountain Power, the utility that serves Salt Lake City and much of Utah.
Permits and inspections can also affect the overall timeline. Salt Lake City’s building services guidance states that installing or altering electrical systems requires a permit, and inspection timing depends on the local jurisdiction’s schedule.
Planning for the Power Interruption
During the replacement, power to the home is usually off for much of the work. Plan ahead for refrigerated food, medical equipment, home offices and anything that needs power. Your electrician can explain when power will go off and when it is expected to be restored, while noting that unforeseen conditions can change the plan. Ask whether the job will be completed in one visit or in stages, and whether temporary power can be arranged for critical needs.
Never try to speed up the process by doing any part of the panel work yourself. Panel and service connections carry dangerous current.
If you are planning a panel replacement in Salt Lake City, our electrical panel replacement service can review your setup and give you a realistic schedule for your specific project.