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A bidet toilet seat is one of the easiest, highest-satisfaction upgrades you can make to a bathroom — and installing one is a 30-minute DIY job that taps into your existing water supply. The big decision is electric (heated seat, warm water, dryer) vs. non-electric (simple, no outlet needed).
Here are three I’d recommend, from a premium electric seat to a no-frills pick. You will need an outlet near the toilet for the electric models.
Best Overall: TOTO Washlet Electric Bidet SeatEditor’s Choice
TOTO basically invented the modern bidet seat, and the Washlet is the gold standard: warm water, heated seat, adjustable spray, and a self-cleaning wand. Build quality and reliability are excellent. If you want the full spa experience and buy-it-once quality, this is the one. Needs a nearby outlet.
Check the TOTO Washlet Electric Bidet Seat price on Amazon →
Electric · heated seat, warm-water wash and dryer · needs a nearby outlet
- Warm water, heated seat and dryer — full comfort
- TOTO build reliability
- Adjustable wash position and pressure
- Requires a GFCI outlet near the toilet
- Premium price
- Check your bowl shape and size for fit
Verdict: The do-it-all electric seat if you have an outlet and the budget.
Best Electric: Bio Bidet Electric Bidet Seat
Bio Bidet packs most of the premium features — warm water, heated seat, adjustable nozzle — at a noticeably lower price than TOTO. A great way to get the heated, warm-water experience without the top-tier cost. Also needs an outlet.
Check the Bio Bidet Electric Bidet Seat price on Amazon →
Electric · core warm-water features · lower price
- Heated water and seat for less money
- Easy DIY install on a standard bowl
- Good side or remote controls
- Fewer premium extras than the TOTO
- Still needs an outlet
- Bulkier control housing
Verdict: The smart pick for electric comfort without the top-tier price.
No Outlet Nearby? Non-Electric Bidet Attachments
No outlet near your toilet? A non-electric bidet seat or attachment uses your existing water line for a clean, refreshing spray with zero electricity. No heated seat or warm water, but it’s inexpensive, dead simple, and installs in minutes. The easiest entry point to bidets.
Check the Bio Bidet SlimEdge attachment on Amazon →
No power needed · cold-water wash · mounts under the seat
- No outlet required anywhere
- The cheapest way to add a bidet
- Simple under-seat install
- Cold water only unless tied to a warm line
- Hand-turned side knob, no remote
- No heated seat or dryer
Verdict: The budget, no-wiring way to try a bidet.
How to Install a Bidet Toilet Seat
- Turn off the toilet’s water supply and flush to empty the tank.
- Remove your existing toilet seat (two bolts at the back).
- Mount the bidet seat’s bracket and slide the seat on per the instructions.
- Disconnect the supply line at the tank, install the included T-valve, then reconnect the tank line and run the bidet’s hose from the T-valve.
- For electric models, plug into a nearby GFCI outlet. Turn the water back on, check for leaks, and test.
FAQ
Do bidet toilet seats need electricity?
Electric models (with heated seats, warm water, and dryers) need a nearby GFCI outlet. Non-electric bidet seats and attachments use only your existing water line and need no power — they spray room-temperature water. If you have no outlet near the toilet, go non-electric or add an outlet.
Are bidet seats hard to install?
No — it’s one of the easiest bathroom upgrades, usually about 30 minutes. You remove your old seat, mount the bidet seat, and tee into the existing toilet supply line with the included valve. No special tools or plumber required for most installs.
Will a bidet seat fit my toilet?
Most bidet seats come in round and elongated versions to match standard toilet bowl shapes — measure your bowl and pick the matching size. Check the seat’s listed dimensions and mounting-hole spacing (standard on nearly all toilets) before buying.
Bottom Line
For the full heated, warm-water experience, the TOTO Washlet is the buy-it-once choice; the Bio Bidet gets you most of those features for less. No outlet near the toilet? A non-electric bidet seat is a cheap, simple win. All install in about half an hour by teeing into your existing supply line.
Want the full price picture first? Our cost to install a bidet guide breaks down attachment vs. seat vs. standalone — and when a smart seat means paying an electrician for a GFCI outlet.
Related Plumbing Guides
- Best Bidet Attachments
- Best Toilets for Your Home
- Best Toilet Supply Lines
- How to Fix a Running Toilet (Complete Guide)
- Toilet seat size: round vs elongated
Related: fitting a non-electric attachment instead? See how to install a bidet attachment — a seized shutoff valve is what turns a 20-minute job into a real one.
Fix the 12 Most Common Plumbing Problems Yourself — Free Plumber’s Handbook — including the toilet fixes plumbers charge $150+ for
Step-by-step fixes for the 12 most common problems — and exactly when to call a pro. Free and instant, from a licensed plumber. Save hundreds on calls you didn’t need.