How Long Does an Electrical Panel Upgrade Take?

If you’re planning to upgrade your home’s electrical panel, one of the first questions you might have is, “How long will it take?” The good news is that most electrical panel upgrades can be completed in just one day—usually within 4 to 8 hours, depending on your home’s electrical setup and any additional work required.

Here’s a closer look at what to expect before, during, and after your upgrade.

What Happens During a Panel Upgrade?

An electrical panel upgrade isn’t just about swapping one box for another. It’s a comprehensive process that involves safely disconnecting your current system and installing a new, modern panel that can handle more power—and meet today’s safety codes.

During the upgrade, your electrician will:

Turn off the power to your home
Remove the old panel and breakers
Inspect and update any necessary wiring or grounding
Install the new panel and connect circuits
Label and organize breakers
Test the system to ensure everything is working correctly
Coordinate with the utility company for service reconnection (if needed)
Schedule or complete final inspection with the local authority

Depending on the complexity of your home’s electrical system—and the electrician’s schedule—the entire process typically takes 4 to 8 hours.

Will My Power Be Out All Day?

You can expect a brief power outage during the upgrade process, but it usually doesn’t last the entire time. In most cases, power is restored within a few hours once the new panel is installed and inspected.

To minimize disruption, consider scheduling the upgrade:

Early in the day so it’s done before evening
On a day when your household has lower energy needs
During cooler weather if you're concerned about HVAC downtime

Talk to your electrician ahead of time to plan around any critical needs—especially if you work from home or have medical equipment that requires power.

What Factors Affect the Time Needed?

Several factors can influence how long your upgrade takes:

Age and condition of existing panel and wiring
Access to the electrical panel location
Whether service upgrades (like meter or utility line updates) are needed
Permit and inspection scheduling
Number of circuits and complexity of your home’s system

A straightforward replacement in a modern home might take just a few hours. A more complex job in an older home with outdated wiring or space constraints could take longer.

Why Plan Ahead?

Electrical panel upgrades require permits, inspections, and licensed professionals—so they’re not something you can schedule on short notice. Plan ahead to make sure your electrician has time to evaluate your system, secure necessary approvals, and coordinate with your local utility provider if needed.

Upgrade Once, Power Confidently for Years

A new panel isn’t just a short-term fix—it’s a long-term upgrade that improves safety, prevents overloads, and gives you the capacity to support everything from EV chargers to new appliances and home offices.

Ready to Upgrade?

At Have Lights Will Travel, our licensed electricians handle panel upgrades from start to finish—efficiently, safely, and with minimal disruption to your day. Whether your current panel is outdated or your home’s energy demands are growing, we’ll make sure your system is ready for the future.