Kitchen and Bath Circuit Upgrade on a Remodel

Purpose

A kitchen and bath remodel is not priced by outlet count. It is priced by home runs, because the adopted edition sets a minimum number of dedicated circuits for these rooms and the panel decides what they cost to deliver. This SOP settles the circuit count and the panel consequence before demolition, when a subpanel is a line on a quote rather than a change order behind finished drywall.

The failure it prevents is the one every shop has eaten once: the rough goes in on the circuits the old kitchen had, the inspector counts the required ones, and the shortfall has to be run through a ceiling somebody already closed.

Scope

Dwelling kitchen, pantry, breakfast room, dining room and bathroom remodels where circuits are being added, replaced or rearranged.

Does not cover the service-level load calculation that decides whether the service itself is adequate (load-calculation-before-a-service-upgrade), the ground-fault determination per outlet (expanded-gfci-requirement-check-before-a-quote), the arc-fault determination per circuit (afci-requirement-check-on-a-remodel), or the final directory and as-built (panel-labeling-and-as-built-handover).

Roles and responsibilities

Procedure

1. Record the adopted edition and amendments at the head of the circuit schedule. The countertop and work-surface provisions at 210.52(C) were restructured in the 2023 edition, including how islands and peninsulas are treated, so the same kitchen can produce two different receptacle plans two editions apart. Run code-cycle-adoption-check-before-a-permit-application. Acceptance: edition year, amendment source and check date on the schedule itself. Stop rule: no edition, no schedule, because the placement plan is not portable between editions. Hazard: none at this step, it is a desk decision.

2. Measure the countertop and work-surface geometry and the basin locations, and draw the placement plan. Along each counter run, place receptacles so no point along the wall line is more than 24 in horizontally from one, which caps the gap between adjacent receptacles at 48 in, and place one at every countertop or work surface 12 in or wider. In each bathroom, place a receptacle within 36 in of the outside edge of each basin per 210.52(D). Acceptance: every run dimensioned in inches on the plan, every gap computed and at or under its limit, and every basin dimension written. Wrong looks like a plan drawn to cabinet elevations without a single measured gap. Stop rule: a gap over its limit gets a receptacle added on the plan, before rough, not argued at inspection. Hazard: measuring in a demolition area - confirm the room's circuits are open and locked before working near cut-back cable ends, and treat any conductor you did not personally kill as live.

3. Count the required circuits by category, from the section text. The adopted 210.11(C) sets minimums: two or more 20 A small-appliance branch circuits serving the kitchen, pantry, breakfast room and dining room receptacle outlets, at least one 20 A laundry circuit where a laundry area is in scope, and at least one 20 A bathroom circuit. Then add an individual branch circuit for each fixed appliance whose instructions call for one. Acceptance: a circuit schedule listing each required circuit, its ampere rating, and the section or the appliance instruction that requires it. Wrong looks like counting the circuits the old kitchen happened to have. Stop rule: an appliance with no confirmed instruction sheet is not counted from memory - the sheet is obtained before the schedule closes. Hazard: none at this step.

4. Check the "no other outlets" restrictions against your own plan. The small-appliance branch circuits are restricted to the receptacle outlets the section names, and the bathroom branch circuit carries its own restriction on what else it may supply. Acceptance: each restricted circuit walked on the plan with every outlet on it listed, and the list containing nothing the restriction excludes. Wrong looks like the disposal or the under-cabinet lighting quietly landed on a small-appliance circuit because it was the nearest home run. Stop rule: any excluded load on a restricted circuit gets its own circuit added to the schedule, which changes the panel count at step 5. Hazard: none at this step, it is a plan review.

5. Count panel positions against circuits required, and price the shortfall now. Count occupied and free positions, allow for any two-pole or protected devices the schedule needs, and confirm the service itself supports the addition through load-calculation-before-a-service-upgrade. Acceptance: two numbers written side by side - positions required and positions available - with the difference stated. Wrong looks like "we will find room" written where a number belongs. Stop rule: required over available means a subpanel or panel change is quoted before demolition closes, because a subpanel added later is a second mobilization through finished work. Hazard: counting positions means the deadfront comes off, so open and lock the main under 29 CFR 1910.333(b)(2), written for qualified persons under 1910.332 and 1910.399, prove dead live-dead-live per NFPA 70E-2021, 120.5 in the edition your program has adopted, and set boundary and PPE under arc-flash-boundary-and-ppe-selection-before-panel-work - the line side stays energized with the main open.

6. Confirm a physical route for every home run before framing closes. Walk each run from panel to device location and identify the path, the drilling, and any structural member that governs. Acceptance: every circuit on the schedule marked with a confirmed route. Wrong looks like a schedule with no idea how three of its circuits reach the far wall. Stop rule: no confirmed route means the framing does not close on that wall until one exists or the design changes. Hazard: confirm with the builder or the engineer before boring a joist or a load-bearing stud, and never notch to save a bit change.

7. Rough in, land the circuits, and label as you go. Land conductors under listed terminations at the torque marked on the equipment, using a calibrated tool, and write the circuit's identity at the panel and at the device end the same day it is landed. Acceptance: every conductor torqued and paint-marked, every circuit identified at both ends, and the schedule updated with the position number actually used. Wrong looks like a bundle of unlabelled home runs at the panel that somebody will guess at during trim. Stop rule: no marked torque value and no instructions on site, stop and get the instructions. Hazard: with the main open, keep hands and tools clear of the line-side compartment for the whole step.

8. Energize, test each circuit end to end, and update the directory. Covers and deadfront on before the main closes; stand to the hinge side rather than square in front. Then test each new circuit at its furthest device: correct voltage, correct polarity, ground continuity, and the protective device opening on its own test button where one is fitted. Acceptance: every circuit on the schedule carrying a measured voltage, a polarity result and, where protected, a trip-and-reset result. Wrong looks like a circuit that energizes at the panel and was never checked at the far end. Stop rule: any circuit failing a test stays off and labelled until it is corrected. Hazard: this is the step that puts energy back with trades still working in the space - tell the other trades before you close the main, and do not energize a circuit whose devices are not yet installed and covered.

When the site does not match the assumption

The appliance package changes after the schedule is closed. Every change is re-run through step 3 and step 5 in writing, because a built-in microwave or a second oven can add a circuit and consume the last free position.

The existing panel is an obsolete make with no listed breakers available. The panel change is then part of this scope by necessity, and it goes on the quote at step 5 rather than being discovered at trim.

The customer wants to keep the old kitchen circuits to save money. The minimums in 210.11(C) are minimums: the inspector counts circuits, and the count is not something this shop can trade away.

The record this produces

One schedule of circuits per job: the edition, source and check date from step 1; every counter run and basin dimension in inches with its computed gaps from step 2; each required circuit with its rating and the section or instruction that requires it from step 3; the outlet list per restricted circuit from step 4; positions required against positions available from step 5; a confirmed route per circuit from step 6; torque and both-end identification from step 7; and the per-circuit test results from step 8.

The inspector reads the schedule, the trim crew reads the identification, and the homeowner's next electrician reads the directory step 8 produces.

Worked pass: galley kitchen and hall bath, 2020 NEC jurisdiction

Step 1 records the 2020 edition with a local amendment package checked that week. Step 2 measures the main counter run at 11 ft 0 in, or 132 in. Receptacles are placed at 20 in, 66 in and 112 in from the left end. The gaps compute as 20 in, 46 in, 46 in and 20 in: the two end gaps are at or under the 24 in limit and the two interior gaps are at or under the 48 in limit, so three receptacles satisfy the run. A 14 in wide work surface beside the range is 12 in or wider, so it takes its own receptacle. In the bath, the receptacle lands 30 in from the outside edge of the basin against the 36 in limit, leaving 6 in of margin.

Step 3 counts seven circuits: two small-appliance circuits, one bathroom circuit, and individual circuits for the dishwasher, the disposal, the built-in microwave and the refrigerator, each of the last four confirmed against its own instruction sheet.

Step 4 catches the under-cabinet lighting drawn onto a small-appliance circuit and moves it to the existing kitchen lighting circuit, which is not restricted the same way. No circuit is added, so the count stays at seven.

Step 5 fails. With the main open and locked and the bus proved dead, the panel is a 24-position enclosure with 20 positions occupied, so positions available is 24 minus 20, or 4. Positions required is 7, which is 3 short. The stop rule fires and a 12-position subpanel with its own feeder is quoted before demolition closes, with the service-level load check run separately and confirming the existing service supports it.

Steps 6 and 7 run clean: all seven routes confirmed, conductors torqued to the marked values, every circuit identified at both ends. Step 8 energizes with the other trades notified, and each of the seven circuits reads correct voltage and polarity at its furthest device, with the protected ones tripping and resetting on their own test buttons. One failed step, a subpanel sold before demolition instead of after drywall.

References

• NFPA 70, National Electrical Code, 210.11(C), 210.52(B), 210.52(C) and 210.52(D), in the edition your authority having jurisdiction has adopted, which binds the installation and reaches you through the permit.
• NFPA 70E-2021, 120.5, for the live-dead-live proving sequence, in the edition your employer's electrical safety program has adopted.
• 29 CFR 1910.333(b)(2), general-industry electrical safe work practices, with qualified-person definitions at 1910.332 and 1910.399.
• Appliance manufacturer installation instructions, which govern whether a fixed appliance requires an individual branch circuit.
• See related: load-calculation-before-a-service-upgrade, expanded-gfci-requirement-check-before-a-quote, panel-labeling-and-as-built-handover.