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Toilet installation in San Jose, set on a sound flange and floor
An old toilet that clogs, runs or simply looks tired. A new toilet is a straightforward swap when the flange and floor are sound, and we check both before the new one goes down.
Toilet installation in San Jose means removing the old toilet, checking the closet flange and subfloor, setting the new toilet on a fresh wax ring or wax-free seal, and connecting a new supply line. Measure the rough-in first: most toilets need 12 inches from the finished wall to the flange center, though older homes sometimes have 10 or 14.
The job
Choosing the toilet and preparing the floor
The toilet you choose decides comfort and water use; the flange underneath decides whether it stays sealed. We help with the first by measuring the rough-in and the space, and take care of the second by inspecting the flange and subfloor once the old toilet is out. A new toilet set on a cracked flange will rock and leak within months.
If your current toilet only needs a part, see toilet repair. Moving a toilet to a new spot is covered under bathroom remodel plumbing.
Cost factors
What changes the price of a toilet install
- The toilet Model and features set most of the price.
- Flange condition Repairs or replacement add parts.
- Subfloor Rotted sections must be replaced.
- Bidet seats A water tee, plus an outlet by an electrician.
- Haul-away The old toilet removed and disposed of.
Every job is priced after we see it; any published range is for planning only.
Your options
Standard or comfort height?
The difference is a couple of inches of seat height, which matters more than it sounds.
| Standard height | Comfort height | |
|---|---|---|
| Seat height | About 15 inches | About 17 to 19 inches, close to chair height |
| Best for | Children and shorter adults | Taller adults, and anyone who finds sitting down hard |
| Bowl shape | Round or elongated | Usually elongated |
| Space | Round bowls suit small rooms | Elongated bowls need more clearance |
| Price | Widest choice | A similar range |
Standard height replacement
Swapping one standard toilet for another is the simplest install: shut off the supply, remove the old toilet, scrape and check the flange, set the new bowl on a new seal, and connect a new braided supply line. The rough-in measurement decides which models fit. We confirm it before you buy, since a 12 inch toilet on a 10 inch rough-in will not fit against the wall, and a 12 inch toilet on a 14 inch rough-in leaves an awkward gap behind the tank.
Comfort height and elongated
Comfort height toilets put the seat near chair height, making them easier to sit on and stand up from. Elongated bowls are more comfortable but project further into the room, so we measure the clearance in front of the bowl and to the door before you choose. Many of the models people ask for, from Toto, Kohler and American Standard, come in both heights and bowl shapes. We install the one you pick and check that it clears the vanity and the door swing.
Bidet seat wiring
Electric bidet seats need a water connection from the toilet supply through a tee fitting, and a nearby outlet for the heated seat and water. Many bathrooms have no outlet behind the toilet. We install the tee and the bidet's supply line, and where an outlet is needed, it should be a properly protected circuit installed by an electrician, which we can coordinate. Non-electric bidet attachments need only the water connection and fit most toilets without any wiring at all.
Flange repair on install
When the old toilet comes up, the flange tells its history. A cracked cast iron flange, a broken plastic ring, bolt slots rusted through, or a flange sitting below the finished floor after new tile all need fixing before the new toilet goes down. Repair rings, flange spacers and full flange replacement cover most cases. If the subfloor around the flange is soft from an old leak, we cut out and replace the rotted section so the new toilet sits solid.
What happens after you call
How a toilet install runs
- 1
Measure
Rough-in and clearances before you buy.
- 2
Remove
Old toilet out, supply off.
- 3
Inspect
Flange and subfloor checked.
- 4
Set
New seal, bolts and bowl, level.
- 5
Connect
New supply line; stop checked.
- 6
Test
Several flushes and a leak check.
Local context
Rough-ins and flanges in older San Jose homes
Fewer than one in ten San Jose homes date from before 1950, and those are where unusual rough-in measurements turn up, with toilets set 10 or 14 inches from the wall instead of the standard 12. Houses from before 1960, around a fifth of the city's stock, often still have their original cast iron closet flanges. On installs in those homes we measure the rough-in before you buy and check the flange as soon as the old toilet is off.
Brands we service and install
FAQ
Toilet installation questions
Measure from the finished wall to the center of the floor bolts; most are 12 inches.
Both work on a sound flange; wax-free suits flanges set slightly low.
Yes, after checking it fits the rough-in.
Yes.
Yes, the water connection; an outlet needs an electrician.
Toto, Kohler, American Standard and others.
We replace the rotted subfloor before setting the toilet.
Related work
Other Kitchen & Bath jobs we handle
Book a toilet installation in San Jose
Call any hour; we measure the rough-in before you buy.
Updated September 2026