Toilet Installation Cost Calculator
Toilet Installation costs $240 to $360 for a typical 1 fixtures job in 2026, against a national benchmark of $290. Labor runs 1.9 crew hours at $42.44 an hour. Enter a ZIP code to apply that area's measured wages for this work and its regional price level.
What makes up the price
Cost by size
National averages, before any local adjustment. Computed from the same model as the calculator above, so the two always agree.
| How many | Fixtures | Typical | Range |
|---|---|---|---|
| 1 fixtures | 1 | $290 | $240 to $360 |
| 2 fixtures | 2 | $420 | $345 to $525 |
What the $290 is and is not
It is the plumber's time and the parts that make the connection: a new wax or waxless seal, closet bolts and caps, a braided supply line, and a bead of silicone at the base. Call it 1.9 hours including the call-out.
It is not the toilet. People choose their own, and the spread is too wide for any single figure to be useful:
| Toilet | All in | |
|---|---|---|
| Builder grade, two-piece | $120–$180 | $410–$470 |
| Mid-range, 1.28 gpf, good flush | $200–$400 | $490–$690 |
| One-piece or skirted | $400–$700 | $690–$990 |
| Wall-hung or bidet-seat ready | $700–$900+ | $990–$1,200+ |
A second toilet on the same visit is $210 rather than $290, because the call-out and the setting up happen once. If both bathrooms are due, do them together.
Measure the rough-in before buying anything
The single most common mistake, and it costs a return trip to the store with a 90-pound box.
The rough-in is the distance from the finished wall behind the toilet to the center of the closet bolts holding it down. There are three:
- 12 inches — standard, and what the overwhelming majority of US houses have.
- 10 inches — common in small or older bathrooms.
- 14 inches — occasional.
Measure to the center of the bolt caps, not to the edge of the base, and measure from the wall rather than the baseboard. A 12-inch toilet will not fit a 10-inch rough-in, and a 10-inch toilet in a 12-inch rough-in leaves a visible two-inch gap at the wall.
Two more measurements worth taking at the same time:
- Bowl shape. Elongated bowls are more comfortable and about two inches longer front to back. In a small bathroom, measure the clearance to the door or the vanity before assuming one will fit.
- Height. A standard bowl sits around 15 inches to the rim; comfort height is 17 to 19, which matches a chair and is easier for tall people and anyone with bad knees. It is the upgrade most people are happiest with and it costs nothing extra.
The flange is the job that is never in the quote
Under every toilet is a closet flange — a plastic or metal ring screwed to the floor that the drain pipe meets and the toilet bolts to. It is the single thing most likely to turn a one-hour visit into a morning, and it is almost never inspected before a quote.
What goes wrong:
- The flange sits below the finished floor. Common where tile or a new floor has been laid over the old one. The seal then has too far to span, which is why the toilet weeps. The fix is an extender ring.
- The flange is cracked, usually at a bolt slot, so the bolt pulls up and the toilet rocks.
- The flange is corroded cast iron or rusted steel, which means cutting it out.
On this page that is the +45% card, taking the job from $290 to about $420 — and it is a repair worth having done properly, because every one of the symptoms people call a plumber about later starts here.
A rocking toilet is not a tightening job
Worth its own section because the instinct is wrong and the instinct cracks china.
If a toilet rocks or weeps at the base, tightening the bolts harder will not fix it — it will crack the base or snap the flange. The seal has already failed, and the toilet has to come up, be reseated on a new seal, and be shimmed level before the bolts are snugged in small stages.
Caulk at the base goes on after that, and only around the front and sides — leaving the back open, so that if the seal ever fails again the water appears on the floor where you can see it rather than soaking into the subfloor for a year.
If the floor around a toilet is soft or the tile sounds hollow, that is subfloor damage from exactly this, and it is a bigger job than a toilet.
Which toilet, in three decisions
Flush performance, not flush rating. Almost every toilet sold now is 1.28 gallons per flush, which is the WaterSense standard and saves around 20% over the old 1.6. That number tells you nothing about whether it clears the bowl. The useful figure is the MaP score — an independent test, published in grams, of how much it removes in one flush. Anything at 600 grams or above is a good flush, and plenty of cheap toilets score it. Dual flush adds a mechanism and a second thing to go wrong, and in a 1.28 toilet it is solving a problem that no longer exists.
One-piece, two-piece or skirted. A two-piece is cheapest, easiest to carry and easiest to replace parts on. A one-piece has no joint between tank and bowl to leak or clean around, costs more, and is heavier. A skirted bowl hides the trapway, which is the hardest part of a toilet to clean, and makes access to the bolts awkward.
Brand for parts. The fill valve and flapper are the parts that will fail, in five to ten years. Choose a brand whose parts are on the shelf at any hardware store — Kohler, American Standard, Toto, Glacier Bay — rather than a sale-priced import with a proprietary valve.
What changes the price
| One toilet | ||
|---|---|---|
| Straight swap | $290 | |
| Replacing the shutoff valve too | $350 | +20% |
| Flange or drain work | $420 | +45% |
| Both | $500 | |
| A second toilet on the same visit | $210 each |
The shutoff is worth planning for in an older house. A multi-turn angle stop that has sat untouched for twenty years frequently will not seal again once it has been turned, and discovering that with the water off and the toilet in pieces is worse than having allowed for it. Quarter-turn ball valves are a few dollars more and will still work in another twenty years.
What you are paying for
One toilet, straight swap, at $290:
| Labor, about 1.9 hours | around $110 |
| Wax ring, bolts and supply line | $30 |
| The call-out | $75 |
| Overhead and margin | the balance |
The call-out is a quarter of this job, which is the shape of all small plumbing work and the reason to combine fixtures on one visit.
Can you do it yourself?
A straight swap is genuinely a DIY job for most people: isolate the water, flush and sponge out the tank, undo the supply, undo two bolts, lift, scrape, set the new seal, lower it carefully, shim, snug the bolts in stages, reconnect, test.
Three things to respect:
- The weight. A one-piece toilet is 90 to 120 pounds and awkward. Two people.
- The torque. China cracks. Snug in alternating quarter turns until the toilet stops moving, and stop there.
- The flange. If what you find underneath is broken, below the floor or rusted, that is the moment to call somebody rather than to improvise.
And if the floor is soft, stop. That is not a toilet job.
Questions worth asking
- What is the rough-in, and have you measured it?
- What condition is the flange in?
- Is the shutoff valve being replaced?
- Is the old toilet being hauled away?
- Standard or comfort height?
- What is the MaP score of the toilet being supplied, if the plumber is supplying it?
- Will the base be shimmed and caulked, with the back left open?
- Is there another fixture to do on the same visit?
- Is the floor sound around the existing toilet?
- What is the warranty on the labor?
Common questions
How much does it cost to install a toilet?
About $290 for the plumber's time and the connection parts — a new seal, closet bolts, a braided supply line and silicone — plus the toilet itself at $120 to $900. All in, that is $410 to $1,200, with most people around $450 to $690. A second toilet on the same visit is $210 rather than $290, because the call-out and the setting up happen once.
What is a toilet rough-in and how do I measure it?
The distance from the finished wall behind the toilet to the center of the closet bolts that hold it down. Measure to the center of the bolt caps, from the wall and not the baseboard. Twelve inches is standard and what most US houses have; 10 inches is common in small or older bathrooms and 14 occasional. Getting it wrong is the commonest mistake on this job — a 12-inch toilet will not fit a 10-inch rough-in, and a 10 in a 12 leaves a two-inch gap at the wall.
Why does my toilet rock, and can I just tighten the bolts?
No — tightening harder cracks the base or snaps the flange. A rocking or weeping toilet means the seal has already failed, so it has to come up, be reseated on a new seal and be shimmed level before the bolts are snugged in small alternating stages. Caulk goes on afterwards around the front and sides only, leaving the back open so that a future leak shows on the floor rather than soaking the subfloor for a year.
What is a closet flange and why does it matter?
The ring screwed to the floor that the drain pipe meets and the toilet bolts to, and it is the single thing most likely to turn a one-hour visit into a morning. Three things go wrong: it sits below a floor that has been tiled over, so the seal has too far to span and the toilet weeps; it cracks at a bolt slot, so the toilet rocks; or it is corroded cast iron and has to be cut out. It adds about 45% to the job and is almost never inspected before a quote.
Should I buy a comfort height toilet?
Most people who try one prefer it. A standard bowl sits about 15 inches to the rim and comfort height is 17 to 19, which matches a dining chair and is markedly easier for tall people and anyone with bad knees. It costs nothing extra and is available across every price range. The only people who should not is households with small children, for whom a standard height is easier.
What is a MaP score and why does it matter more than gallons per flush?
Nearly every toilet sold now is 1.28 gallons per flush, which is the WaterSense standard, and that number says nothing about whether the bowl clears. The MaP score is an independent published test of how much a toilet removes in a single flush, measured in grams. Anything at 600 grams or above is a good flush and plenty of inexpensive toilets achieve it. It is the one specification worth looking up before buying.
Is a one-piece toilet better than a two-piece?
Different rather than better. A one-piece has no joint between tank and bowl to leak or clean around and looks cleaner, but it costs more and weighs 90 to 120 pounds, which matters when it has to be carried upstairs and set down precisely. A two-piece is cheaper, easier to handle and easier to find parts for. A skirted bowl of either type hides the trapway, which is the hardest part to clean, at the cost of awkward access to the bolts.
Does a plumber supply the toilet?
Some will and most are happy for you to buy it, which is why the figures here exclude it. Buying your own means choosing the bowl shape, the height and the flush performance yourself, and it avoids a markup. If the plumber is supplying it, ask which model and look up the MaP score, and confirm the rough-in matches — that measurement is the customer's risk either way unless somebody has been to look.
Should I replace the shutoff valve when replacing a toilet?
In an older house, yes — it adds about 20%, or $60 on this job. A multi-turn angle stop that has sat untouched for twenty years frequently will not seal again once it has been turned, and finding that out with the water off and the toilet in pieces is worse than planning for it. Quarter-turn ball valves cost a few dollars more and will still be working in another twenty years.
Can I install a toilet myself?
A straight swap is genuinely within reach: isolate the water, empty the tank, undo the supply and two bolts, lift, scrape, set a new seal, lower carefully, shim, snug the bolts in alternating quarter turns, reconnect and test. Respect three things — the weight, which is a two-person lift; the torque, because china cracks and the right amount is "until it stops moving"; and the flange, which is the point at which to call somebody if what you find is broken or below the floor.
How long does it take to replace a toilet?
About two hours for a plumber including the call-out and testing, and most of a morning for a competent amateur doing it for the first time. The parts that take the time are not the obvious ones: getting the old wax off the flange, confirming the new toilet sits without rocking before the bolts go on, and testing properly afterwards — which means several flushes and a look at the base ten minutes later rather than one flush and a tidy-up.
What if the floor around the toilet is soft?
Stop, because that is not a toilet job. A soft floor or hollow-sounding tile around a toilet means water has been getting into the subfloor, usually from a failed seal that has been leaking slowly for a long time. The subfloor has to be cut out and replaced before a new toilet goes down, and in a bathroom on a second floor it is worth looking at the ceiling below as well. Any plumber will tell you the same, but it is better to know before the quote.
Where these numbers come from
Nothing here is copied from a contractor directory. Labor is priced from what the trades are actually paid, materials from published producer prices, and both are adjusted to your area using federal cost-of-living data.
- Plumbing, heating and air-conditioning contractors, United States: $42.44/hour, August 2026 (BLS CES CES2023822003)
- Wax ring, bolts and supply line: $30.00 per toilet (price recorded October 2026, not index-adjusted)