Work-with-power rule
This page is information, not permission. Electrical work is the one part of bidet installs that most homeowners should delegate. If you're not trained and permitted locally, hire a licensed electrician — breaker-off habits are what separate convenience from catastrophe.
Why GFCI, specifically
Electric bidets heat water with 1,200–1,400W tankless elements inches from a bowl of water. A Ground-Fault Circuit Interrupter watches the current and kills the circuit when even tiny current leaks — the kind of leak that kills people. Every bidet maker in our roundup requires a GFCI-protected outlet for electric seats, and the Kohler PureWash E930 asks for a dedicated circuit.
The three jobs, ranked by sanity
1 · The socket is already there (cheapest)
If a bathroom currently has a GFCI outlet within ~3–4 ft of the toilet, you're done. Verify it's GFCI-protected (press the "TEST" button — the circuit should cut, then "RESET" restores it), confirm it's not already maxed out with space-heater class loads, and proceed.
2 · Swap an existing outlet for GFCI (sane)
Sometimes a plain outlet is already by the toilet — an electrician can replace it with a GFCI outlet, test the circuit, and verify grounding in well under an hour.
3 · New circuit from the panel (full solution)
For the E930 (dedicated circuit recommended) or bathrooms with genuinely no outlet path: a licensed electrician runs a new GFCI-protected circuit from your panel. Wall access is the cost villain — drywall holes add patching.
Code & code-adjacent notes
- Bathrooms widely require GFCI-protected outlets — for good, electrical-code reasons.
- Most jurisdictions want permit + licensed electrician for circuit work. You don't get away with "handyman special" wiring and keep your insurance.
- No extension cords in wet areas, ever — this is not where frugal creativity lives.
- If you went hybrid path (DIY water + hired electrician), schedule the electrician first — then install the seat when the outlet is ready.
What to tell your electrician
Copy-paste script:
"I need a GFCI outlet within 3–4 feet of the toilet for a bidet seat that draws up to ~1,400W on peak. [EITHER: "There's an existing outlet nearby — can we check the circuit and replace it with a GFCI receptacle?" OR: "There is no outlet near the toilet — can you quote adding GFCI-protected power there?" OR (for the Kohler E930): "I'd like a dedicated GFCI circuit from the panel."] Please confirm the quote includes the outlet, GFCI testing, and any drywall patching or not."
That last clause matters. Drywall patching quotes vary wildly — pin it down before the truck arrives.
What it costs
See the installer page cost estimator for national ballparks by trade and job — but the rough shape: an existing-circuit GFCI outlet is the low end, a dedicated new circuit the high end, wall access the wildcard.