· by Michael Blair, Nashville's Electrician
Our post on when an electrical panel actually needs upgrading covers whether to replace one. This one picks up after that decision: how the job runs in Davidson County, from who is allowed to do the work to the moment Nashville Electric Service turns the power back on. Knowing the order helps you plan the day the house is dark, and it explains why the last step belongs to an inspector and not to the electrician or the utility. It is the order our panel upgrade and replacement service follows on every job.
Who is allowed to replace an electrical panel in Nashville?
A licensed electrical contractor, in almost every case. Metro Codes’ page on emergency electrical reconnects sets out where the homeowner’s side begins, at the point where NES connects its service drop wires, and says damaged wiring from there to the breaker panel or fuse box is the owner’s to pay for and has to be fixed by a licensed electrical contractor. That page is written for storm damage, but it marks the same line a planned panel swap crosses.
Tennessee does let some owners pull their own permit. The State Fire Marshal’s electrical permit FAQ says the owner of a single residence may buy a permit for work on that home for their own use, not for a house they plan to sell, lease or rent, without supplying contractor license information. That is the state’s permit program; Davidson County runs its own through Metro Codes, so confirm with Metro before assuming the same option applies to a house in Nashville. A panel is also where a mistake does the most damage, which is a good reason to leave it to a licensed electrician either way.
Which electrical code will a new panel be inspected to?
In Davidson County, the 2023 National Electrical Code, for permits applied for on or after July 16, 2025. Metro Codes’ adopted codes list shows the 2023 NEC adopted with local amendments, and Metro’s announcement of BL2025-898 gives the effective date and says the new codes apply to plans and applications submitted from that date on.
The state is a different story. The State Fire Marshal’s list of adopted codes still shows the 2017 NEC, with amendments that make arc-fault protection optional in bathrooms, laundry areas, garages and unfinished basements. So a panel replaced in Nashville and one replaced in a town the state inspects can be held to different editions, and the protection required on the new breakers can differ with them. Your electrician should tell you which edition applies before the materials are ordered.
What happens on the day the panel is changed?
The house goes without power from the time the service is disconnected until the inspection is passed and NES restores it. The work in between is the electrician’s: taking down the old panel, mounting the new one, moving each circuit onto a new breaker, making up the grounding and bonding, and labeling the circuit directory so the next person can find the kitchen without flipping every breaker.
Plan the day around that. Refrigerators and freezers stay closed, anything on a medical device needs a backup plan, and the garage door has to be opened by its manual release. If the job changes the service size, the utility side is part of the work as well, which the earlier post on panel upgrades covers.
Why does NES wait for an inspection before restoring power?
Because its own rules say so. The NES Schedule of Rules and Regulations, revised October 1, 2023, requires an inspection and release of every electrical installation by either the State Fire Marshal’s Office or Metro’s Office of Codes Administration before NES provides electric service, except where federal regulation exempts it.
The same section says NES may inspect an installation but is not obligated to, and that an NES inspection does not make it liable for defects. In plain terms, the utility is not checking your panel for you. The Codes inspection is the independent check, and the electrician who pulled the permit answers for the work. That is why the release is the last step and not a formality, and why it is worth asking for a copy of the passed inspection for your records. To schedule a panel replacement or get a written price, ask us for a free estimate.
Sources
- Nashville Electric Service, Schedule of Rules and Regulations (revised October 1, 2023) — Section 8: inspection and release by the State Fire Marshal’s Office or Metro Codes before NES provides service; NES may inspect but is not obligated and is not liable for defects
- Metro Nashville Codes, Emergency Electrical Reconnects — The owner’s responsibility begins at the NES service drop connection; repairs to the panel by a licensed electrical contractor; inspection and release to NES
- Tennessee State Fire Marshal’s Office, Electrical Permit FAQ — A homeowner permit for a single residence for the owner’s own use under the state program
- Metro Nashville Codes, Adopted Codes List — The 2023 National Electrical Code adopted with local amendments
- Metro Nashville Codes, Metro Adopts 2024 International Building Codes — BL2025-898, effective July 16, 2025, for plans and applications submitted on or after that date
- Tennessee State Fire Marshal’s Office, Currently Adopted Codes — The 2017 National Electrical Code at the state level, with arc-fault protection optional in some rooms
FAQ
Electrical Panel Replacement in Nashville, Step by Step — questions
Can I replace my breaker panel myself in Tennessee?
The State Fire Marshal’s program lets the owner of a single residence buy a permit for work on that home for their own use, not for a home to be sold, leased or rented. Davidson County runs its own permits through Metro Codes, so confirm with Metro first. A licensed electrician is the safer choice for a panel.
Will the power be off during a panel replacement?
Yes. The service is disconnected while the old panel comes out and the new one goes in, and NES restores power only after Metro Codes or the State Fire Marshal’s Office inspects and releases the work. Keep refrigerators closed, plan for any medical equipment, and use the garage door’s manual release.
Does NES inspect a new electrical panel?
NES may inspect an installation but is not required to, and its rules say an NES inspection does not make it liable for defects. The inspection that counts is by Metro Codes or the State Fire Marshal’s Office, whose release NES requires before it provides service. The licensed electrician answers for the work itself.
Who is responsible for the wiring between the power line and my panel?
The homeowner, from the point where NES connects its service drop wires. Metro Codes says damaged wiring from that connection to the breaker panel or fuse box is the owner’s to pay for and has to be fixed by a licensed electrical contractor, and power is restored after the work is inspected and released to NES.