Toilet Installation Cost (2026): Replacement, Flange Repair and Rough-In

Toilet installation is a flat-rate task when it is a clean swap onto a good flange, and a variable job the moment there is a rocking toilet, a rotted floor, or a corroded flange underneath.

What does toilet installation cost?

A standard replacement with the customer's toilet on a sound flange runs $130 to $300 in labor. Supplying a mid-grade toilet plus install runs $300 to $600. Add $150 to $400 for a flange repair or replacement, and more if subfloor around the flange has to be cut out and rebuilt.

What turns a swap into a bigger job?

• A broken or below-tile flange needing a repair ring or full replacement
• Soft or water-damaged subfloor around the closet flange
• Corroded closet bolts or a rusted supply stop that must be replaced
• A cast-iron drain where the flange is part of the pipe
• Moving the rough-in for a different toilet footprint — a real drain-line job

How should you quote it?

Quote the swap as a flat rate with the flange and stop assumed good, and list unit prices for flange replacement and shutoff valve replacement so the on-site adjustment is transparent. Customers accept a $200 add-on they were warned about; they dispute a surprise.

What should the estimate mention about the old toilet?

Haul-away and disposal, wax ring and hardware included, a 24-hour leak check recommendation, and that any pre-existing floor damage revealed when the old toilet comes up is documented with photos and quoted separately.

Example: toilet replacement with a flange repair

Line item	How it's priced	Example
Remove and dispose of old toilet	Flat	$50
Install new toilet (supplied by contractor)	Flat labor	$180
Mid-grade toilet	Cost + markup	$290
Flange repair ring	Unit price	$150
Quarter-turn shutoff and new supply line	Unit price	$110
Total		$780

Illustrative numbers only. Use your own rates, production times and local costs.

Check the rough-in before ordering

The rough-in is the distance from the finished wall to the center of the drain. Most toilets are made for a 12-inch rough-in, but some older homes have 10- or 14-inch rough-ins. Ask the customer to measure from the wall to the closet bolts, or to send a photo with a tape measure. Ordering the wrong toilet costs a second trip.

Unit prices to include on the quote

• Flange repair or replacement
• Shutoff valve replacement
• Subfloor repair, per square foot
• Toilet carry-up for upper floors, if heavy
• Bidet seat or comfort-height upgrade

Frequently asked questions

How much does a plumber charge to install a toilet?

Labor for a standard replacement on a sound flange commonly runs about $130 to $300. Flange repairs, shutoff valves and floor damage add to that.

How long does a toilet installation take?

A straightforward swap often takes one to two hours. Flange or subfloor repairs add time.

What is a toilet rough-in?

It's the distance from the finished wall to the center of the toilet drain, most commonly 12 inches. The new toilet must match it.