







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why San Jose Homeowners Choose Toto Construction
We’re Penhallow Remodeling San Jose, and we provide Toto repair in San Jose, along with construction and installation service across the city. Our remodeling crews handle Toto toilets, Washlet bidet seats, and full bathroom retrofits every week – usually as part of a larger kitchen or bath remodel, but also as standalone fixture swaps. We are not affiliated with or authorized by Toto, and we say that plainly because you deserve to know exactly who’s walking through your door. What we bring is hands-on familiarity with every major Toto line, a written price before we touch a single bolt, and a 365-Day Done Right Promise in writing on every job. Call (669) 274-2362 to talk through your Toto project.
San Jose’s housing stock shapes a lot of the Santa Clara Toto service work we see. Most homes around here are single-story ranch-style builds from the 1950s through the 1970s, and many still carry original plumbing rough-ins that were never meant for modern fixtures. That matters when you’re swapping a Toto Drake for a Neorest with a built-in Washlet, because the supply line, the flange, and the electrical rough-in often need attention at the same time. We plan for that from the first walk-through, and the written estimate covers it before we start.
Why Trust Penhallow Remodeling San Jose for Your Toto Construction?

Trevor Nash runs our San Jose operation, and he’s been doing this long enough to know that a fixture is only as good as what’s behind the wall. He grew up in Los Angeles, picked up his first framing hammer on a summer job, and got serious about the craft at Los Angeles Trade-Technical College. Since then, he’s run remodeling projects across the South Bay, including a stretch of kitchen and bath gut-jobs in Willow Glen he still considers some of his cleanest finish work. The crew that shows up at your door in uniform, background-checked, reports to him – and the Toto-specific training they carry comes from doing the work, not reading a spec sheet.
What that means on a Toto job: our technicians know which models share flush valve assemblies, which Drakes need a specific tank-to-bowl gasket thickness, and when a Wobble on a Washlet seat is the mounting plate rather than the seat itself. We use genuine Toto parts for critical plumbing like fill valves and flush valves, and we’ve learned which aftermarket gaskets hold up in San Jose’s particular conditions. And like every Penhallow Remodeling job, you get a written price before work starts and a written 365-Day Done Right Promise: if the work fails inside a year, we come back and fix it at no charge.
We also do the parts of the job other Mountain View Toto service crews skip. When we install a Neorest in an older San Jose home, we check the flange, the supply line, and the circuit – because a luxury toilet on a corroded flange is a future leak waiting to happen. That’s the difference between a fixture swap and fixture service done right, and it’s the standard we hold on every job.
Styles & brands we work with







Common Toto Construction Problems We Fix in San Jose
- Tank-to-bowl gasket failure on Drake and Ultramax models. The two-piece Drake and one-piece Ultramax are the workhorses of San Jose bathrooms, but the gasket between tank and bowl can crack over time, especially in homes where winter heating dries the air and summer humidity swings stress the rubber. You’ll see a slow weeping at the back of the bowl, or water staining at the floor bolts. We replace the gasket with the correct Toto spec and torque the tank bolts evenly – overtightening is what starts most of these failures. On a heavily corroded Ultramax, we’ll tell you honestly whether replacement is the smarter spend.
- Washlet seat rocking or loosening at the mounting plate. Toto Washlet seats mount to a plate anchored at the bowl, and in San Jose’s humid bathroom environments the hardware can corrode or strip out of old porcelain. The seat feels loose, shifts when you sit, and eventually the bolt holes oval out. We remove the seat, inspect the plate, and use fresh mounting hardware – often upgrading to stainless where the original zinc hardware has failed.
- Running flush valves on high-use Drake toilets in family homes. A Drake that runs long after the flush usually has a stretched flush valve chain or a flapper that’s drifted out of alignment. It’s the most common call we get from San Jose families. The fix is straightforward – adjust or replace the flapper and chain, and verify the fill valve isn’t overfilling. We carry genuine Toto flapper assemblies in our trucks for exactly this reason.
- Neorest auto-flush sensor failing after mineral buildup. The Neorest’s auto-flush sensor depends on a clean optical path, and San Jose’s hard water deposits a mineral film that confuses the sensor over time. The symptom is intermittent flushing – sometimes it works, sometimes you’re waving your hand at it. There’s no repair for a sensor that’s chemically etched; the fix is a new sensor assembly, and while we’re in there we recommend a whole-unit descaling procedure using Toto’s specified cleaning method.
- Slow leaks at the floor flange on older San Jose homes. This one’s about the house, not just the toilet. Many of San Jose’s post-war ranch homes sit on concrete slab foundations, and the original closet flanges are cast iron or early PVC that’s shifted as the soil around the slab settles during drought years. You’ll see water or a faint sewage smell at the base. We address the flange – either reseating it, replacing it, or leveling it with a repair ring – before the new Toto goes down. Skip this step and the best toilet in the world still leaks.
Give me the real problem and I’ll give you the real number. That’s how Trevor puts it, and it’s how we run every Toto diagnosis: figure out what’s actually failing, then tell you what it costs to fix – in writing.
Toto Parts & Our Repair-vs-Replace Approach

Our rule on parts is simple: genuine Toto first, quality aftermarket when it makes sense. Flush valves and fill valves are the heart of the toilet’s performance, and Toto’s engineering tolerances are tighter than most aftermarket parts can match. We stock genuine Toto flappers, fill valves, and flush valve assemblies locally for fast turnaround on common failures. When OEM parts are backordered – and that happens fairly often in the South Bay – we have vetted aftermarket sources for gaskets, tank bolts, and mounting hardware that we’ve used across dozens of installs without a callback.
Repair versus replace is a math problem we do out loud with you. If the cost of parts and labor to fix an older fixture exceeds half the cost of a new unit, we tell you to replace it. That’s especially true for heavily scaled or internally corroded Totos: you can throw parts at it for five hundred dollars and still have a fifteen-year-old toilet that’s about to crack somewhere else. We’d rather give you that straight answer than take a repair job that buys you six months.
If you’re weighing repair against replacement on your Toto, call (669) 274-2362 – we’ll give you a written breakdown of both options, and the estimate is free.
Our Toto Service Process – Step by Step
- 1
Diagnosis. We start by identifying the exact failure – running the flush cycle, checking for leaks at the tank, bowl, and flange, inspecting the supply line and shutoff valve, and testing any electrical components on Washlet or Neorest units. You get a written diagnosis with the specific parts and labor needed.
- 2
Price in writing. Before we touch a tool, you get a firm written number: parts, labor, and any sub-work like flange replacement or GFCI circuit installation. The number on day one is the number on the invoice. No change orders unless you ask us to add scope.
- 3
Repair or install. We turn off the water, drain the fixture, complete the repair or installation using genuine Toto parts where specified, and dress the job – meaning we protect the floor, clean up as we go, and leave the bathroom cleaner than we found it. If the install is a Neorest or Washlet, we run the electrical properly: a dedicated GFCI circuit where code calls for it.
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Test and verify. We run multiple flush and fill cycles, check every connection for drips, confirm the flush valve seals tight, and – on auto-flush models – test the sensor three times from different angles. We don’t consider the job done until the fixture works exactly like it should.
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Warranty in writing. Every Toto repair and install carries our 365-Day Done Right Promise in writing. If anything we touched fails inside a year, we come back and make it right at no charge – no service call fee, no re-inspection fee. That’s the Penhallow Remodeling standard.
See the difference
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AfterToto Products We Service & Install in San Jose

We work across the full Toto lineup most common in San Jose homes. The Drake series – Toto’s most popular two-piece toilet – is what we see most often in post-war ranches and newer remodels alike, and we’re familiar with its flush valve variations across model years. The Ultramax series, a one-piece design, shows up in mid-range bath remodels, and we handle gasket replacements, flush mechanism repairs, and full fixture swaps. The Neorest series is Toto’s integrated luxury line – toilet and Washlet in one unit – and we’ve installed and serviced the NX2 and other Neorest models in Willow Glen and across San Jose, always with attention to the electrical and plumbing upgrades they require. The Washlet series – standalone bidet seats – is a retrofit we do most weeks, usually on existing Toto bowls but also on other round or elongated fixtures with the right mounting pattern.
We keep common Toto flappers, fill valves, gaskets, and mounting hardware in local stock, which means most repair calls don’t wait on a parts order.
We Also Service These Brands
Toto is a focus, but it’s not the whole picture for a General Contractor. Penhallow Remodeling San Jose installs and works around cabinetry from KraftMaid, quartz and solid surfaces from Cambria and Silestone, and fixtures from Kohler – so if your bathroom project spans a Toto toilet and a Kohler faucet, one crew handles both. You get a single written price and a single warranty for the whole job.
FAQs – Toto Construction Service in San Jose
In most cases, yes. A Neorest install requires a 120V GFCI-protected outlet near the toilet, a supply line sized for the integrated Washlet, and a floor flange in good enough condition to anchor a heavier integrated unit. If your San Jose bathroom already has an outlet nearby, we can typically complete the install without opening walls or rebuilding the bath. If the electrical rough-in isn’t there, we’ll scope that work into the written estimate – and it’s usually less invasive than homeowners expect. Call (669) 274-2362 for a free on-site assessment.
It’s almost always the flapper or the chain. The flapper on a high-use Drake wears out or drifts off its seat, and the chain stretches over thousands of cycles. Water continues to trickle from tank to bowl, and the fill valve keeps topping up the tank – that’s the running sound. We replace the flapper assembly with a genuine Toto part, check the chain length, and verify the fill valve shuts off at the correct water line. It’s a quick fix, and we keep parts in stock for same-week service in San Jose.
The mounting plate under the seat is the usual culprit. Toto Washlet seats anchor to a plate bolted through the bowl, and over time the hardware loosens, corrodes, or strips the porcelain in San Jose’s humid bathrooms. The fix is to remove the seat, inspect the plate and bowl holes, replace the hardware with stainless where needed, and remount the seat flush and level. It’s a repair we handle regularly, and the fix keeps the seat from shifting or wearing the bowl.
Replace it. A cracked tank on a one-piece Ultramax can’t be safely repaired – the porcelain is structural, and any patch will fail under water pressure eventually. At ten years old, the flush valve is also near the end of its service life, and the cost of a new tank plus labor would exceed half the price of a comparable new unit. We’ll help you pick the right replacement for your San Jose home and give you a written install number before anything gets ordered.
Yes, this is one of the most common retrofits we do in San Jose. A Toto Washlet seat installs at the bowl with a water supply tee, so the toilet stays put and the plumbing doesn’t move. You do need a 120V outlet near the toilet for the heated seat and wash features, and we’ll verify that during the estimate. The whole retrofit typically takes a few hours, and the price is firm in writing before we start. Call (669) 274-2362 for a free estimate.
How much does Toto construction cost in San Jose?
| Service | Price Range |
|---|---|
| Bathroom Remodel (Toto fixture replacement included) | $10,620 – $33,040 |
| Small Bathroom Remodel (Toto toilet or Washlet swap) | $5,900 – $14,160 |
| Bathtub Replacement (with Toto-compatible plumbing rough-in) | $4,130 – $10,620 |
These are real San Jose market ranges, and the spread comes down to existing plumbing condition, electrical rough-in requirements, and the specific Toto fixture you’re installing. A Washlet retrofit on an existing outlet costs far less than a Neorest install that needs a new GFCI circuit. Call (669) 274-2362 for an exact written quote – the estimate is free.
Book Your Toto Service in San Jose, CA
If your Toto fixture needs repair, replacement, or a full retrofit, we’re ready to put a written price in your hands before any work starts. Call Penhallow Remodeling San Jose at (669) 274-2362 to schedule your free estimate. We answer the phone with a live person, we show up when we say we will, and we back every Toto job with a 365-Day Done Right Promise in writing.
Written by Trevor Nash, Owner at Penhallow Remodeling San Jose, serving San Jose since 2004.


