A transfer switch is the piece of electrical equipment that safely connects your generator to your home's panel — without one, running a generator into your house wiring is a serious fire and electrocution hazard, both to you and to utility line workers.
Automatic transfer switches are paired with whole-home standby generators. They detect a power outage, disconnect your home from the grid, and start the generator automatically within seconds — no action required from you.
Manual transfer switches are a lower-cost option paired with a portable generator. You select which circuits to power (typically 6-10 essential circuits) and start the generator yourself during an outage.
Without a transfer switch, power can flow backward into the grid, putting utility repair crews at serious risk of electrocution.
Improperly connected generators can overload circuits not designed for the load, creating a fire risk inside your home.
An unpermitted connection can violate code and may affect your homeowner's insurance coverage in the event of a claim.
Standalone transfer switch installation (paired with a portable generator you already own) typically runs $500–$1,800 depending on switch type and panel access. It's bundled into the total cost when installed as part of a new whole-home system.
No — transfer switch installation requires a licensed electrician and a permit in Henderson and Clark County. DIY installation is both a safety risk and typically not code-compliant.
Yes, if you want to power circuits inside your home safely. Running extension cords through windows/doors is a common workaround but is not a safe or recommended long-term solution.
A standalone transfer switch install typically takes a few hours to half a day, depending on your panel's condition and location.
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