The toilet model itself
A $99 Big box store budget unit vs a $600 Toto vs a $1,500 smart toilet with bidet wash. Unit price drives the biggest swing.
What factors into a toilet installation price
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1
The toilet itself
One-piece vs two-piece, gravity vs pressure-assist, ADA-comfort height vs standard, elongated vs round, smart toilet vs basic. Unit price ranges from $99 to $2,500+ and it's the biggest single line item.
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2
Flange
The disc bolted to the floor that connects the toilet to the drain. If it's cracked, sunk below floor level, or rusted out, it gets repaired or replaced — that's separate from the toilet swap.
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3
Wax ring / seal
The gasket between the bottom of the toilet and the top of the flange. One per install, fresh. Wax-free rubber alternatives are an option but most plumbers stick with wax.
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4
Supply line and shut-off
The flex line from the wall valve to the toilet tank. Old vinyl lines should be replaced with braided stainless every install. Old multi-turn shut-offs that won't close fully need a quarter-turn replacement.
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5
Mounting and rough-in
Closet bolts that secure the toilet to the flange, plus the rough-in distance (how far the flange sits from the wall — usually 12 inches, sometimes 10 or 14). Wrong rough-in means the wrong toilet.
Utah Plumbing Prices
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I am Tyler. I have been a plumber in Salt Lake for 10+ years.
The number one question I get from homeowners is: was that toilet installation price fair?
Sometimes yes. Sometimes no. This site helps you ask better questions before you approve the work.
Read my storyCommon Questions
Straight answers before you book.
What does a toilet installation cost in Utah?
A standard swap installed by a licensed plumber runs $450-$700 with a customer-supplied builder-grade or mid-grade toilet. Mid-grade Toto or Kohler supplied and installed (unit plus labor) runs $750-$1,200. Smart toilets with integrated bidet wash run $2,500-$5,500 installed depending on the unit tier and whether new electrical is needed.
Should I supply the toilet myself or let the plumber bring one?
Let the plumber supply it. Plumbers buy through supply houses (Ferguson, Mountainland Supply, F.W. Webb) at contractor pricing well below online retail, and the cost lands in your install quote instead of arriving as a separate freight bill on a 90-pound ceramic box. Bigger reason: if the unit ships cracked or has a defect, the plumber handles the warranty through the distributor instead of you fighting an online return. Customer-supply only makes sense if you want a specific model the plumber doesn't carry, or you already bought one at a clearance event.
What brand should I buy?
Toto is the contractor favorite in Utah — strong flushing engineering, clean glaze, parts available 15+ years out. Kohler is solid, more design-forward, runs slightly higher. American Standard is a workhorse value. Skip Glacier Bay (Home Depot house brand) and Project Source (Lowe's house brand) — proprietary flush valves and flappers that nobody stocks in three years.
Round bowl or elongated — which is better?
Elongated is more comfortable and now the residential default. It needs about 30 inches of clearance in front of the bowl. Round is shorter front-to-back (saves ~2 inches) and is only worth picking when you have a tight half-bath with real door-clearance problems. If you're in a normal bathroom, get elongated.
What is "comfort height" and do I want it?
Comfort height (also called "Right Height" by Kohler, or "ADA height") puts the seat at 17-19 inches off the floor, vs standard at 15-16 inches. Easier on knees and hips. Most homeowners over 40 prefer it. The one case against: small kids whose feet don't reach the floor.
Is a smart toilet or bidet seat worth it?
If you want warm-water wash and you have a GFCI outlet behind the toilet already, yes. If you don't have an outlet, an electrician has to add one (GFCI is required by code behind a toilet) — that's a separate trade and a separate cost. The plumber sets the toilet, the electrician handles the circuit. A bidet seat that bolts onto your existing toilet ($300-$600 unit, plus a quick install) gets you most of the experience without buying a whole new toilet.
What's the wax ring vs wax-free debate?
Wax has worked for 80 years. It is cheap and it seals. Wax-free rubber alternatives (Sani-Seal, Korky Universal) hold their shape if the toilet ever has to come back off for service, and they are the right call on bathrooms with radiant floor heat where wax can soften over time. Either is fine for a normal install. Plumber's preference is usually fine.
How long does a toilet installation actually take?
A clean swap (good flange, no surprises) is 45-60 minutes. Add 30-60 minutes if the flange needs work. Smart toilet with new electrical is a full day total, but the plumber is only on site about half of that — the electrician handles the rest.
What if my flange is broken?
As an add-on during your install, flange repair typically runs $275-$500. As a standalone trip, $450-$750 because the plumber still has to roll the truck and pull the existing toilet. A flange extender (for one sunk below the finished floor) is the cheap end. A full flange replacement that requires cutting back the closet bend is the expensive end — quick on PVC or ABS, slower on older cast-iron drain stacks.
What's the difference between gravity and pressure-assist?
Gravity is what 95% of toilets use — quiet, simple, reliable. Pressure-assist uses compressed air in a tank-within-the-tank for a more forceful flush. They clear waste better but they are LOUD. Best fit: basements with poor drain slope, commercial settings, or households where clogs are a recurring issue. Don't put one in a master bath.
Why is my new toilet still running after install?
Usually one of three things: the chain on the flapper is too tight (won't seat), the float is set too high (water keeps spilling over the fill tube), or the fill valve is faulty out of the box. Easy adjustments either way. If the plumber didn't catch it on the leak test, that is a callback — should be free.
What questions should I ask before signing a quote?
Five questions: (1) Is this itemized or a flat-rate book price? (2) Are you supplying the toilet or am I? (3) What's the brand and model number going in? (4) What's the up-charge if you find a bad flange or rotted subfloor? (5) Does this include a new supply line and quarter-turn shut-off if the old ones are toast?