The short version: most people spend either about $60 or about $400. Which one depends less on features than on whether there’s already an outlet next to your toilet. If there isn’t, add $130 to $350 for an electrician — and that single item is what pushes budgets past what people expected.
Search this question and you’ll be told the average is around $640, with a range up to $1,500. Both numbers are true and both are close to useless, because they average in standalone bidet fixtures — the separate porcelain basin beside the toilet — which need their own hot and cold supply and a drain tied into the waste line.
Almost nobody in North America buys one of those. If you’re reading this you’re almost certainly choosing between an attachment and a seat, and those cost far less than the headline figure suggests.
On this page
Three realistic budgets
| Unit | Install | Total | |
|---|---|---|---|
| Attachment, fitted yourself | $30–$100 | $0 | $30–$100 |
| Electric seat, outlet already there | $200–$600 | $0 DIY | $200–$600 |
| Electric seat, outlet needed | $200–$600 | $130–$350 | $330–$950 |
Those three cover the great majority of purchases. For completeness, the two rarer paths: an integrated bidet toilet — a single fixture replacing the whole thing — runs $500 to $1,500 for the unit and typically $650 to $2,100 installed. A standalone bidet basin is $250 to $800 for the unit but $700 to $2,600 installed, because a new fixture needs its own supply lines and a drain, and roughing that in alone costs $450 to $1,800.
That last figure is the whole reason the published averages look high. It isn’t the bidet that’s expensive, it’s the plumbing.
The outlet is the swing factor
An electric seat needs a grounded, GFCI-protected outlet within reach of a cord that’s usually about four feet long. Bathrooms built before bidets were common in North America often have no outlet near the toilet at all.
Adding one costs $130 to $350 depending on the situation — swapping an existing standard receptacle for a GFCI is at the cheap end, running a new circuit from the panel at the expensive end. Budget for drywall repair and paint on top if the wall has to be opened.
Two things worth knowing. Electricians commonly have a two-hour minimum, so one outlet costs nearly as much as three — if you have other small electrical jobs pending, bundle them into the same visit. And if the electrician’s quote is what breaks the budget, a non-electric seat or an attachment sidesteps it entirely. That’s a legitimate answer, not a consolation prize.
Full detail on requirements and what each brand says about extension cords is in our outlet guide.
What a plumber or electrician charges
- Plumber: $45 to $150 an hour, higher in some metros. Fitting an attachment or seat is 15 to 30 minutes, so $100 to $300 all in if you hire it out.
- Electrician: $50 to $130 an hour, usually with a two-hour minimum. An outlet is $130 to $350 total.
- Trip fee: most trades charge $100 to $200 just to turn up, and it’s included in the figures above. It’s also why bundling jobs matters.
For what it’s worth, fitting a bidet seat to a standard two-piece toilet is genuinely a DIY job — most people manage it in under an hour with no special tools. Where it stops being one is skirted toilets, wall-hung toilets, or anywhere the water supply is awkward to reach.
What isn’t in the sticker price
Small items, but they’re the ones that turn a $200 purchase into a $260 one.
- A top-mount kit if your toilet is skirted — the panel hides the bolts from underneath. Some seats include one, many don’t.
- An alternate T-valve if the skirt also blocks access to the fill valve, so the water line has to connect at the wall instead.
- A new braided supply line, worth replacing while everything’s apart if the existing one is old.
- Buying the wrong bowl shape. Round and elongated are usually the same price, but an elongated seat on a round bowl doesn’t sit properly and has to go back. Measure first — our compatibility guide covers it.
What it costs to run
Less than most people expect. An electric seat adds roughly $20 a year to a power bill — it only draws meaningfully during a wash cycle, which is a few minutes a day, and idles at very little the rest of the time. Eco modes trim that further.
Water use is negligible. A wash cycle uses a fraction of what a single flush does.
Maintenance is a periodic nozzle clean and, in hard water areas, occasional descaling. No consumables, no filters on most models.
Does it pay for itself?
You’ll see this claimed a lot, usually by people selling bidets. The honest answer is: eventually, and slowly, and only if you do the arithmetic on your own household rather than trusting a generic figure.
Households typically report using 50 to 75 percent less toilet paper after fitting one. So work out what you actually spend on paper in a year, take 60 percent of it as a reasonable estimate of the saving, and subtract the $20 of electricity. Divide the cost of the seat by what’s left.
For most households that lands somewhere between five and ten years on a $400 seat, and a year or two on a $60 attachment. Which is to say: buy an attachment on the economics if you like, but nobody should buy a $400 electric seat expecting it to pay for itself. Buy that one because warm water and a dryer are worth having.
One exception worth knowing about. Where a bidet is medically necessary, some health savings accounts, flexible spending accounts and long-term care policies will reimburse the cost. Rules vary and most require documentation from a doctor, but it changes the sums considerably and it’s a phone call worth making before you buy.
Not sure which type you need? Our guide to attachments versus seats covers what the extra money actually buys.