Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Toto Construction in Santa Clara, CA | Viceroy Construction
We provide independent Cupertino Toto service and coverage across Santa Clara, handling everything from a leaking Drake fill valve to a full bathroom rebuild around a new Neorest. What makes our Toto work different here is the local reality: Santa Clara’s older ranch homes in 95050 and 95051 routinely hide undersized supply lines, original galvanized plumbing, and undersized ventilation that turn a “simple” Toto swap into a bigger job. We know that before we walk in the door, so you’re not surprised mid-project. Call (877) 358-6557 for a free estimate from a contractor who works with Toto fixtures every week, not occasionally.
Why Santa Clara Residents Choose Us for Toto Service
We’ve torn out and reinstalled Toto toilets, bidet seats, and washlet systems in hundreds of Santa Clara bathrooms, from 1950s ranch tract homes to newer townhomes off the transit corridor. That repetition means we know the supply-line quirks, valve specs, and seat-fit details of Toto’s product lines from the inside. When a Washlet trips a GFCI in a 95050 ranch or a Drake ghost-flushes after a hard water season, we’ve seen it before and we know exactly what part to grab.
Neil Drummond, our owner, trained in the building trades program at West Valley College in Saratoga and has spent the better part of three decades running residential projects across the South Bay. The details you don’t see are the ones that matter most. That’s why we stock genuine Toto fill valves, flappers, and seat hinges rather than forcing aftermarket internals that don’t match proprietary thread and flow specs. Santa Clara homeowners call us because our Toto work holds up, and because we don’t have to learn your fixture on the job.
Styles & brands we work with







Common Toto Construction Problems We Solve in Santa Clara
- Ghost flushing and run-on in Drake and Eco Ultramax tanks. Santa Clara’s hard water degrades fill-valve O-rings and flappers faster than the manufacturer’s typical replacement interval, causing intermittent tank refills and silent leaks between flushes. We replace the full fill valve assembly with OEM Toto parts rather than just the flapper, which lengthens the repair cycle.
- Washlet GFCI tripping in older ranch bathrooms. Many 95050 and 95051 homes have undersized bathroom ventilation and original two- or three-prong outlet configurations. Moisture intrusion into a Washlet’s electrical connection or a marginal GFCI breaker causes intermittent tripping that most plumbers misdiagnose as a seat failure. We check the circuit as well as the fixture.
- Slow leaks at the Neorest inlet solenoid. After years of thermal cycling, the integrated bidet seats on Neorest 750H and 550H models develop slow leaks at the inlet solenoid, sometimes staining the subfloor near the toilet flange before anyone notices. We inspect the solenoid and the subfloor together because both matter.
- Rocking one-piece bowls on original 1950s subfloors. Santa Clara ranch homes built in the 1950s often have subfloors with uneven deflection. A Toto one-piece bowl sitting on an older wax ring can rock just enough to break the seal over time, leading to hidden rot that only shows up when we pull the toilet for a tile job or vanity swap.
- Undersized supply lines choking flush performance. Original galvanized supply lines in 95050 and 95051 ranch homes frequently deliver pressure below what a Toto 1.6-gallon or Washlet-equipped fixture needs to flush at rated performance. We identify this before installing, and we’ll replace the shutoff and pressure regulator when the line can’t support the new fixture.
Toto Service in Santa Clara: What Local Conditions Mean for Your Equipment
Santa Clara’s 95050 and 95051 ranch homes present a specific problem we don’t see the same way in newer South Bay construction. Many of those houses still run original 1.6-gallon toilets tied to undersized galvanized supply lines. When a homeowner upgrades to a Toto fixture expecting better flush performance, the new toilet often underperforms, not because of the toilet, but because the supply line can’t deliver the pressure. That triggers a shutoff-valve and sometimes a pressure-regulator replacement before the new Toto can meet its rated flush. We’ve also seen this in homes along Monroe Street in the 95051 zip, where a 1990s Drake pull during a bathroom remodel revealed a cracked closet flange and a soft subfloor from a slow wax-ring leak. We replaced the flange, sistered the joist, and set a new Drake with a reinforced wax ring and a quarter-turn shutoff. The homeowner avoided a ceiling repair below and got a flush that actually works.
Toto Models & Products We Service in Santa Clara
We service the Toto lines most common in Santa Clara bathrooms: the Drake (CST743 series), Eco Ultramax (MS854114 series), Washlet seats (S350e, C100, C200), and Neorest integrated units (750H and 550H). Our approach is straightforward: genuine Toto fill valves, flappers, and seat hinges for anything with proprietary thread or flow specs. For older Drake tanks with cracked bowls, we’ll recommend full replacement instead of chasing discontinued parts. A new Drake often costs less than two service calls on a dying one. We also keep common Toto service parts on our trucks so most Santa Clara repairs don’t wait on a parts order. See our broader Toto sales & service page for the full scope of what we offer.
See the difference
Before
After
Before
After
Before
AfterToto Service Pricing in Santa Clara
What you’ll pay for Toto work in Santa Clara depends on whether we’re swapping parts or opening walls. A fill-valve and flapper replacement on a Drake runs at the lower end of the range. A full bathroom remodel with a new Toto fixture, shower, and vanity is a different scope. Here’s what to expect from our recent Santa Clara projects:
| Project | Typical Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
Every estimate is free and line-itemed, so you see exactly where the money goes: parts, labor, disposal, and any Santa Clara-specific corrections like a supply-line upgrade. Fixed pricing with no change orders. Call (877) 358-6557 to schedule a walkthrough.
Serving Santa Clara, CA — Our Local Coverage Area
We’re based in the Santa Clara area and know this community well, including Toto in Buena Vista and surrounding neighborhoods. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in Santa Clara
Most newer Santa Clara townhomes and remodeled bathrooms have a GFCI outlet within reach for a Washlet seat, but many original 95050 and 95051 ranch homes do not. An undersized supply line also affects Washlet performance, not just the toilet flush. We check both before quoting, so you know the full scope up front. Call (877) 358-6557 for an exact assessment.
Hard water in Santa Clara wears out the fill-valve O-rings and flappers on Drake tanks faster than normal. The fix is a full OEM fill-valve assembly replacement, not just a flapper swap, because the hard water deposits build up on the valve itself. If the bowl is cracked or the tank is original, replacement may make more sense than a third repair call.
In most cases, yes. The Neorest 750H and 550H seats are serviceable, and we replace the seat unit while keeping the bowl when the bowl is undamaged. If the inlet solenoid has leaked long enough to compromise the subfloor, that’s a different repair, but we’ll show you what we found before we do anything. Call (877) 358-6557 for a free estimate.
Swapping a toilet like-for-like doesn’t require a permit in Santa Clara. But moving a drain, altering supply lines, or changing the bathroom footprint does. We pull the permits when the scope requires them and the job passes Santa Clara inspection before we call it done.
For the tighter rough-in bathrooms common in 95050 ranch homes, we often recommend the Drake CST743 series with a round-front bowl or the Eco Ultramax MS854114 for its compact one-piece profile. Both fit standard 12-inch rough-ins and perform well on upgraded supply lines. Stop by our Santa Clara service area page for more on what we install here.
Service Areas Near Santa Clara
We provide Toto service throughout Santa Clara and the surrounding South Bay cities, including Toto service in Sunnyvale, Toto service in Lexington Hills, Saratoga, Cupertino, Campbell, and Monte Sereno. If your bathroom is anywhere in this corridor, we’re close by with parts on the truck.
Book Your Toto Service in Santa Clara Today
If you’re in Santa Clara or need Toto service in Campbell and are dealing with a running Toto, a trip-free Washlet, or a bathroom remodel that includes a new Toto fixture, call (877) 358-6557. Estimates are free, line-itemed, and honest about what your specific house will need. We’ll come out, assess your bathroom, and give you a number you can actually plan around.
Written by Neil Drummond, General Contractor – Santa Clara at Viceroy Construction, serving Santa Clara since the day we opened our doors.