Costs by bidet type, the hidden extras, and what changes the price in an older Philadelphia bathroom.
The Price Depends on the Type
Bidet installation cost ranges from about $100 for a simple attachment to $2,600 or more for a standalone bidet, based on national cost data. Where your Philadelphia bathroom lands depends on the bidet type and whether you need new plumbing or a new outlet.
A bidet attachment or seat uses your existing toilet. A standalone bidet is a second fixture with its own water lines and drain. That difference drives most of the cost. We cover all of these options as part of toilet installation in Philadelphia, including the power and water hookups they need.
Below you will find cost ranges by type and the extras that raise the price. We also cover what older Philadelphia homes add to the job and how to pick the right option.
How Much Does Each Type of Bidet Cost to Install?
Cost guides agree on the general range but differ by source. The figures below come from HomeGuide’s bidet cost data, which includes the unit plus professional installation.
Bidet Attachment: About $100 to $300 Installed
An attachment fits under your current toilet seat and taps the toilet’s cold water line. The unit itself runs about $20 to $100. No outlet is needed for basic models.
Bidet Toilet Seat: About $250 to $1,000 Installed
A bidet seat replaces your toilet seat. Many include warm water, a heated seat, and a dryer. Powered seats need an outlet near the toilet.
Bidet Toilet: About $650 to $2,100 Installed
This is a full toilet with bidet features built in. It replaces your current toilet.
Standalone Bidet: About $700 to $2,600 Installed
A standalone bidet sits next to the toilet and needs its own hot and cold supply lines and drain. It also needs floor space.
For comparison, Fixr’s bidet installation guide puts the national average for an installed floor-mounted bidet at about $1,000, with most projects between $500 and $1,500.
What Extra Costs Come With a Bidet?
The bidet itself is only part of the price. These extras can add to the total.
A New Outlet
Heated seats and warm water need power close to the toilet. Many bathrooms do not have an outlet there.
Bathroom outlets must be GFCI protected, according to the National Kitchen and Bath Association planning guidelines. Adding a new outlet is new wiring, and the City of Philadelphia electrical permit guide requires a permit for that work.
New Water Lines and a Drain
A standalone bidet needs hot and cold water plus its own drain. The same guidelines note hot water delivered to a bidet should be limited to 110 degrees.
Space for a Standalone Bidet
Code requires at least 15 inches from the center of a toilet or bidet to any wall or fixture, and NKBA recommends 18 inches. Many small bathrooms simply do not have room.
Permit Fees
A new fixture means new plumbing. The city lists a $100 filing fee for plumbing permits, applied toward the final permit fee.
What Changes the Cost in a Philadelphia Bathroom?
Older Philadelphia homes can add work that a cost guide does not show.
No Outlet Near the Toilet
Many older bathrooms have one outlet by the sink, if any. Running a new circuit or outlet through plaster walls takes more time than in newer drywall.
Old Shutoff Valves
A bidet seat connects at the toilet’s shutoff valve. Old valves may leak or fail when turned and should be replaced first.
Tight Floor Space
Rowhome bathrooms rarely have room for a second fixture. A bidet seat or bidet toilet is often the practical choice.
Permit rules matter here. The City of Philadelphia plumbing permit guide exempts removing and resetting a toilet when no pipes or fixtures are replaced or moved. Adding a standalone bidet is new plumbing and needs a permit and a licensed master plumber.
Showcase Remodels installs bidet systems and smart toilets across Philadelphia. One team handles the electrical, plumbing, and tile, so the outlet, the valve, and the fixture do not need three separate trades. Adding a bidet during a bigger project also costs less than retrofitting it later.
Which Bidet Option Is Right for Your Budget?
Match the bidet to how you will use it and how much work your bathroom can take.
Tight Budget
A bidet attachment gives you the basic function for the lowest cost with no electrical work.
Best Comfort for the Money
A powered bidet seat adds warm water and a heated seat. Plan for an outlet if you do not have one.
Remodeling Anyway
If the toilet is being replaced, a bidet toilet or a bidet seat on a new toilet costs less to add now than later.
Large Bathroom Only
A standalone bidet makes sense only when there is floor space and you are already opening walls for plumbing.
Planning a bigger update? See the bathroom fixture installation guide. For a small room, compare pedestal sinks and vanities to free up space. And if you are still deciding on the toilet itself, read about toilet installation cost.
Bidet Installation Cost Questions
Only if you need a new outlet. Powered bidet seats plug into a GFCI outlet near the toilet. In Philadelphia, adding a new outlet is new wiring that needs a permit.
Most attachments and seats fit standard round or elongated toilets. Check the seat shape and the space behind the toilet before buying.
For most homes, no. It costs much more, needs its own plumbing, and takes floor space. A bidet seat or bidet toilet gives similar function for less.
Add a Bidet the Right Way
Showcase Remodels installs toilets and bidet options across Philadelphia, including the outlet and plumbing they need. Call for a free design consultation.
