Electrical panel upgrades

Signs a panel needs attention

Some panels are simply too small for how a house is used now. Others are old enough that parts are hard to find. A licensed electrician should look at the panel if you notice any of these:

• Breakers that trip often, or a panel with no open slots
• A fuse box, or a panel that is decades old
• Warm breakers, a burning smell or scorch marks (call an electrician right away)
• Plans for a whole-home generator, EV charger, heat pump or addition

Why it matters for a generator

A whole-home transfer switch connects at the service entrance and is sized to match the service. If your service is 100 amps and you want to add central air, an EV charger and a generator, the electrician may recommend upgrading to 200 amps first. Doing the panel and the transfer switch together usually saves labor compared with doing them years apart. See automatic transfer switches.

What the job involves

A panel upgrade means shutting off power, removing the old panel, installing the new one, reconnecting circuits and often replacing the meter socket and service cable. The utility usually has to disconnect and reconnect the service, so the electrician coordinates the date with them. The house is typically without power for part of a day. A permit and inspection are required, and the electrician should handle both.

What affects the price

The amp rating, the condition of existing wiring, whether the meter or service cable must be replaced, and whether the panel has to move all change the cost. Fixr lists upgrades to 100 amps at about $1,200 to $1,800, to 200 amps at about $1,800 to $4,500, and to 400 amps at about $8,000 to $12,000. Large Armonk houses with heavy loads sometimes need more than 200 amps, which is a bigger project.

Safety

Panel work is high-voltage work that can kill. It should only be done by a licensed electrician. If a panel is hot, buzzing or smells of burning, switch off what you safely can, keep away from it and call an electrician or 911 if there is smoke or fire.

Questions homeowners ask