Toilet Installation Cost: Replace, Upgrade or Add One
Most homeowners pay $375 – $800 to replace an existing toilet with a mid-grade unit, installed and hauled away. Labor alone, when you supply the toilet, runs $150 – $350. Adding a toilet where none existed is a different project, because that is rough-in plumbing, not a swap. Here is where your job lands.
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| Job | Installed range | What it covers |
|---|---|---|
| Replace existing toilet (mid-grade unit) | $375 – $800 | New toilet, wax ring, supply line, set and seal |
| Labor only (you supply the toilet) | $150 – $350 | Set, seal and test on an existing flange |
| Toilet plus haul-away of the old one | $25 – $75 | Disposal fee, often bundled into the quote |
| Upgrade to comfort-height or one-piece | $450 – $1,100 | Unit cost rises, labor is similar |
| Smart or bidet toilet install | $1,400 – $5,500+ | Needs a nearby outlet, sometimes a circuit |
| Add a toilet at a new location | $2,500 – $7,000+ | Drain, vent and supply rough-in required |
| Tier | Unit price | Note |
|---|---|---|
| Standard two-piece | $150 – $400 | The common like-for-like replacement |
| One-piece / comfort-height | $300 – $700 | Sleeker, easier to clean, taller seat |
| Smart / integrated bidet | $1,200 – $5,000+ | Heated seat, wash, dryer, auto functions |
| Item | Range | When it applies |
|---|---|---|
| Flange repair or replacement | $150 – $400 | Cracked or sunken flange found once the toilet is up |
| New shutoff valve | $75 – $200 | Old valve seized or weeping |
| Floor repair under the toilet | $200 – $1,000 | Rotted subfloor from a long-term leak |
| Supply line and wax ring | $15 – $50 | Replaced on every proper install |
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What a standard replacement includes
A professional toilet replacement is a one to two hour job. The plumber shuts off the supply, drains and removes the old toilet, scrapes the old wax, inspects the flange, sets the new bowl on a fresh wax ring (or waxless seal), bolts it down, reconnects the supply with a new braided line, and runs several test flushes to confirm a watertight base. That labor, plus a mid-grade unit and haul-away, is the $375 – $800 most people pay.
Labor by itself, when you have already bought the toilet, runs $150 – $350 depending on your market and whether the old flange and valve cooperate. Hauling the old toilet away adds $25 – $75, and many plumbers fold that into the quote. Ask, because a separate dump trip is the kind of line item that surprises people at the end.
The flange: the surprise that decides your bill
The closet flange is the ring that anchors the toilet to the drain and holds the wax seal. You cannot see its condition until the old toilet is off the floor. A cracked, corroded, or sunken flange (common in older homes and after any base leak) has to be repaired before the new toilet goes down, or the seal will fail and you will be paying twice.
That repair adds $150 – $400 to the visit, and it is the single most common reason a quoted swap comes in higher. If your old toilet rocked, leaked at the base, or sat on a tile floor that raised the finished height above the flange, expect this conversation. Our breakdown of flange and wax ring repair covers what drives that number, and a base leak is often the early warning.
Standard, comfort-height, one-piece or smart
A standard two-piece toilet costs $150 – $400 for the fixture and remains the default replacement: parts are everywhere and any plumber can set one. Comfort-height (also called chair-height) models sit about two inches taller, which most adults find easier on the knees, and one-piece designs have no tank seam to clean. Both run $300 – $700 for the unit, with labor roughly the same as a standard swap.
Smart and integrated-bidet toilets are the jump: $1,200 – $5,000 and up for the fixture, with heated seats, washing, drying, and automatic lids. The catch is electrical. These need a grounded outlet within reach of the unit, so if your bathroom has no outlet behind the toilet, budget for an electrician to add one. That, not the plumbing, is what pushes a smart-toilet install toward the top of the range.
Adding a toilet where none existed
Replacing a toilet is a swap. Adding one at a new location is rough-in plumbing, and the prices are not in the same universe. A new toilet needs a 3-inch drain tied into the stack, a vent, and a cold supply line, plus floor work to set the flange at the right height. Even in a basement near existing lines, expect $2,500 and up; a toilet far from the stack, or below the sewer line where an ejector pump is required, runs higher.
If you are weighing a new powder room or full bath, the toilet is one fixture among several, and the drain, vent and supply runs are shared. Price the whole project, not the bowl: our guide to the cost to add a bathroom lays out rough-in versus finish so the number makes sense before you open a wall.
Repair or replace, and what the visit looks like
Not every toilet problem needs a new toilet. A constantly running toilet is usually a $10 – $30 flapper or fill valve, and our walkthrough on a toilet that keeps running saves a service call on the most common complaint. Replace the toilet when the bowl is cracked, the flush is chronically weak even after cleaning the jets, or you are remodeling and want the height or look to change.
On install day, expect a tech who confirms the rough-in distance (the measurement from the wall to the flange bolts, usually 12 inches) before unboxing anything, because a 10-inch or 14-inch rough-in needs a specific bowl. The job is clean, fast, and quotable on the spot. Same-day replacement is realistic in most markets when common units are on the truck.
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