The first time I pulled a toilet, the wax ring was fused to the closet flange with thirty years of buildup and I needed a putty knife and a heat gun to free it. The second time took twenty minutes. Toilet removal and installation is one of the most accessible DIY plumbing tasks in the house — no soldering, no pressurized lines, no permits in most jurisdictions — but the details matter. A poorly seated wax ring leaks slowly for years and rots subfloor before you notice.
Here’s the full process, the tools you actually need, and the pitfalls that turn a two-hour job into a weekend.
Tools and Materials You’ll Need
Before starting, lay out the following: an adjustable wrench (10-inch), a putty knife or 5-in-1 painter’s tool, an old towel or sponge, a 5-gallon bucket, a flashlight, latex gloves, and a roll of paper towels. For the install: a new wax ring ($4 for standard, $8 for the no-seep version), new closet bolts ($3 set), a 3/8-inch braided supply line ($10), and the toilet itself.
If you’re replacing the toilet entirely, the new unit ships with most hardware. If you’re just resetting an existing toilet to fix a leak, buy a wax ring and supply line — assume the rest is reusable. A torpedo level ($15) is genuinely necessary for the install step.
Step One: Shut Off and Drain
Turn the shutoff valve at the wall clockwise until it stops. If the valve is corroded or doesn’t shut all the way, turn off the main house water supply instead — far easier than dealing with a stuck valve during an install. Flush the toilet and hold the lever down to drain as much water as possible.
Use a sponge or a wet/dry vacuum to remove the remaining water from both the tank and the bowl. A few cups will still trickle when you lift the toilet — set a towel and the 5-gallon bucket nearby. The water trapped in the trapway will spill when you tilt the toilet to remove it.
Step Two: Disconnect the Supply
Unscrew the supply line from the bottom of the tank using the adjustable wrench. Have a towel ready — there’s always some water in the line. If the supply line is older than 10 years (white plastic with a yellow nut, or rigid copper), replace it during the install. Modern braided stainless lines last 20+ years and cost $10.
If the supply line connects to a corroded shutoff valve, now is the time to replace the valve too. A quarter-turn ball-type shutoff is $12 and installs in 30 minutes with a SharkBite push-fit fitting. Avoid using soldered shutoffs on a DIY install unless you have a torch and experience.
Step Three: Remove the Tank (Optional but Recommended)
Lifting a one-piece toilet usually requires two people. Two-piece toilets are easier if you separate the tank from the bowl first. Remove the two tank bolts under the tank (usually phillips heads with rubber washers) and lift the tank straight up. Set it aside on cardboard or an old towel.
Some tanks bolt to the bowl with three bolts. Check before lifting. The tank-to-bowl gasket is often saturated and will leak as you lift, so set the tank on a towel-covered surface.
Step Four: Unbolt and Lift the Bowl
Pop the plastic caps covering the closet bolts at the floor. Unscrew the nuts with the adjustable wrench. If they’re corroded solid, soak with PB Blaster penetrating oil ($7) for 10 minutes and try again. If still stuck, use a hacksaw blade to cut through the bolt at the base.
Once unbolted, gently rock the toilet side to side to break the wax ring seal. Lift straight up — never tilt heavily because residual water will dump out of the trapway. Set the toilet on a folded towel or directly into the bathtub for easier disposal cleanup.
Step Five: Scrape the Flange Clean
The old wax ring is now stuck to either the closet flange (the round metal or PVC ring at the floor) or the bottom of the toilet. Scrape it off completely with the putty knife. Wear gloves — old wax mixed with trace sewage is unpleasant.
Inspect the closet flange while you’re down there. If it’s cracked or sitting below the finished floor level, repair it now. A flange extender ($8) raises a low flange. A repair ring ($12) reinforces a cracked plastic flange. A new flange installed with screws into the subfloor costs $25 and an hour of work if the original is beyond salvage.
Step Six: Set the New Wax Ring
Insert new closet bolts into the flange slots and seat them with the included washers. The bolts should stick straight up. Center the wax ring on the flange — most rings press onto the flange and hold themselves in place. Some installers prefer to press the wax ring onto the bottom of the toilet first; either works.
For a flange that sits below the finished floor (common with thick tile), use the no-seep wax ring or stack two standard rings. The wax must compress enough during the toilet set to fill the gap between the flange and the toilet horn.
Step Seven: Set, Level, and Secure
Lower the toilet straight down onto the bolts. Apply firm body weight to compress the wax ring evenly — sit on the closed lid and rock slightly side to side. Do not over-rock or the seal will break. Tighten the closet bolt nuts gradually, alternating sides, until snug. Snug, not gorilla-tight: porcelain cracks under torque.
Check level with a torpedo level across the front and side. Shim with plastic toilet shims if needed, then trim the shims flush. Reattach the tank, reconnect the supply line, turn the water back on, and check for leaks at every joint. Run three full flushes and check the floor around the base with a paper towel. If dry, caulk the front and sides of the base (skip the back so any future leak shows immediately) with white silicone.
The whole toilet removal and installation process takes 45 minutes once you’ve done it twice. The first time, give yourself a full afternoon and keep a roll of paper towels handy.
