Toilet Installation Cost Calculator

Replacing a standard toilet typically runs $200 to $600 all-in (a basic fixture plus labor), with most jobs landing between $250 and $900 depending on the toilet and the work involved. Labor alone to swap a toilet is usually $150 to $350. From there the type drives it: a standard two-piece installs for about $200 to $600, a one-piece $400 to $800, a wall-hung $800 to $1,500+, and a smart or integrated-bidet toilet $1,000 to $2,500+. Whether you're replacing in place or adding a toilet where there's no plumbing is the other big swing.

Much more, and the plumbing is why. Replacing an existing toilet reuses the drain (closet flange) and water line that are already there — a quick, low-cost swap. Adding a toilet where none existed means running a new drain line tied into the sewer or stack with proper slope and venting, plus a new water supply, and often cutting into floors or walls. In this calculator that's the difference between the baseline 'replace existing,' a modest bump for 'new where plumbing exists,' and a roughly 60% jump for 'new needing plumbing' — and in a tough spot like a basement below the sewer line, it can climb well beyond that.

A standard two-piece has a separate tank bolted to the bowl — the cheapest and easiest to install and repair. A one-piece fuses tank and bowl into a sleek, seam-free unit that's easier to clean but heavier and pricier. A wall-hung toilet floats off the wall with its tank hidden in an in-wall carrier frame — a modern, space-saving look, but the most involved install because the wall has to support and house the carrier. A smart or integrated-bidet toilet adds electronics (washing, heated seat, auto lid) and needs a nearby GFCI outlet, making it the most expensive. Cost and install effort climb in that order.

The closet flange is the fitting that connects the toilet to the drain pipe and anchors it to the floor; the wax ring seals against it. If it's cracked, corroded, or sitting too low after new flooring was added, the seal fails — causing leaks at the base, a rocking toilet, and sewer odors. A sound flange means a straightforward set; a damaged one has to be replaced or built up first (about $120 per toilet here). If a long-term leak has rotted the subfloor beneath it, that soft floor won't hold the toilet and needs repair too (about $350 per toilet). It's a small part the whole installation depends on, so it's worth checking before setting a new toilet.

Swapping a standard toilet in the same spot is a realistic DIY job for a handy homeowner: shut off the water, remove the old toilet, clean the flange, set a fresh wax ring, seat and bolt the new toilet without overtightening, connect the supply, and test for leaks. Where a pro is worth it: a brand-new installation that needs drain and supply lines run, a wall-hung toilet with an in-wall carrier, a smart toilet that needs an outlet added, or any flange or rotted-subfloor repair. Because a bad seal can cause hidden water damage, many people hire out anything beyond a simple replacement for the leak-free guarantee.

A straight replacement is quick — usually 1 to 2 hours for a standard toilet, a bit more if the old bolts are corroded or the toilet is a heavy one-piece. A new installation that requires plumbing is a much bigger job: a half-day to a full day for the drain and supply work, and potentially multiple days if concrete has to be cut or a difficult sewer connection is involved. Wall-hung toilets take several hours to a day for the in-wall carrier, and smart toilets add time for the electrical hookup. Flange or subfloor repairs add anywhere from an hour to several.

Sometimes. An upstairs bathroom is a small bump for access and material handling. A basement is the notable one: if the bathroom sits below the level of the main sewer line, gravity drainage doesn't work, and you may need an up-flush or macerating/ejector system to pump waste up to the sewer — added equipment and labor. Even without that, below-grade work and tie-ins tend to run higher. The calculator reflects a modest add for upstairs and a larger one for basement locations, but a plumber's look at the drain situation is the only way to price a tricky basement toilet accurately.

Common line items include hauling away and disposing of the old toilet, a new quarter-turn shutoff valve and braided supply line (cheap insurance against an old valve that won't reseal), a soft-close or premium seat, an add-on electronic bidet seat, running a new water supply line, and a plumbing permit when new plumbing is involved. Most are small, but they add up — and a new shutoff valve is one many plumbers recommend on any replacement since old valves often fail right when you're relying on them. The calculator lets you toggle each so the estimate matches your actual scope.