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Toto Construction in Cupertino, CA | San Bruno Construction
We install, re-set, and service Toto toilets, Washlet seats, and full bathroom packages across Cupertino, from the 95014 ranch flats to the 95015 hillside estates. What makes our Toto work different here is that we’re a general contractor who understands what lurks under a 1950s slab floor or behind a tiled wall in a forty-year-old Cupertino bath, not just what’s bolted on top of it. If you’re planning a Toto install or your existing unit is acting up, call (866) 472-1908 for a straight answer and a free estimate.
Why Cupertino Residents Choose Us for Toto Service
We’ve installed and serviced Toto’s residential lineup across hundreds of South Bay bathrooms, including Toto service in Saratoga and throughout the region, with Washlet-equipped toilets and high-efficiency Drake and Ultramax models in both new-build and remodel packages. That means we know the supply, valve, and rough-in quirks that Cupertino’s older plumbing and new high-end builds demand. Noel Carvalho grew up watching San Mateo County get built, trained in construction technology at Skyline College, and has spent the last two-plus decades pulling permits, framing additions, and finishing bathrooms where the tile actually lines up. We coordinate the plumbing, electrical, tile, and flooring trades so a Toto upgrade doesn’t turn into three separate phone calls and a scheduling headache. One contractor, every phase, from the flange under the floor to the Washlet on the bowl.
Styles & brands we work with
Common Toto Construction Problems We Solve in Cupertino
- Washlet seat electronics and heater faults from hard South Bay water. Cupertino’s city water leaves scale on the wand and inlet filter faster than most homeowners expect. A Washlet C5 or S7 that stops heating or sprays weakly usually isn’t dead, it’s clogged, and the fix is a proper descale with the correct Toto filter and wand assembly rather than a seat replacement.
- Fill valve and tank-to-bowl gasket seepage on older Drake and Ultramax tanks. Year-round water chemistry in Cupertino corrodes rubber gaskets and stiffens fill-valve diaphragms. A Drake CST775 that runs intermittently or weeps at the tank bolts needs a genuine Toto gasket and fill valve, not a universal kit from the home center.
- Aquia dual-flush flush-tower failures from wrong aftermarket parts. The Aquia IV’s flush tower is a precise component. When a previous repair swapped in an aftermarket tower, the dual-flush rhythm goes off and the unit either double-flushes or won’t seal. We stock the OEM tower and swap it correctly.
- Wax ring and flange misalignment during remodel re-sets. In Cupertino, where a bathroom remodel often means new tile raising the finished floor height, the original closet flange ends up too low. That causes slow leaks, odor, and a toilet that rocks. The fix is a flange correction, not a second wax ring stacked on top.
- Undersized or cracked closet flanges in 1950s – 1970s slab baths. The ranch tract homes in the 95014 flats were roughed in for standard toilets decades ago. A cracked cast-iron flange or one that’s been patched with putty will fail under a modern Toto’s weight and flush cycle. We replace and re-anchor the flange before the new unit goes down.
Toto Service in Cupertino: What Local Conditions Mean for Your Equipment
Cupertino’s 95014 flats are dominated by 1950s – 1970s ranch and Eichler-influenced homes where original cast-iron drains and 1.6-gpf era plumbing were roughed in for standard toilets. That’s the hidden complication. Installing a modern Toto, especially one with a Washlet that needs an outlet near the bowl, frequently means adding a dedicated GFCI circuit and addressing an undersized closet flange before the new unit ever gets set. On a ranch tract near the old orchards in the 95014 flats, our crew remodeled a hall bath and re-set an existing Drake II plus a Washlet C5. The original flange was low and cracked, and the slab bath had no outlet near the bowl. We replaced the closet flange, corrected the floor height for the new tile, added a GFCI outlet at the vanity, and the Toto has run leak-free since. That job would have stalled for weeks under a plumbing-only contractor. We handled the electrical, the tile, and the Toto in one sequence.
Toto Models & Products We Service in Cupertino
We work on the Drake CST775 and CST776 two-piece line, the Ultramax II MS604114CEFG one-piece, the Aquia IV dual-flush in both one-piece and two-piece configurations, the Washlet C5 and S7 electronic bidet seats, and the Neorest 700H integrated smart toilet. On any repair we use genuine Toto OEM fill valves, flush towers, gaskets, and Washlet components. Non-OEM parts are the main cause of repeat failures on Aquia and Washlet units, so we don’t install them. We also tell customers straight when a 15-to-20-year-old tank toilet is better replaced than re-valved. Our Toto sales & service coverage spans the full residential lineup, and we keep the most common Cupertino service parts on hand for faster turnaround.
See the difference
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AfterToto Service Pricing in Cupertino
What you’ll pay depends on whether we’re re-setting an existing Toto, swapping a valve and gasket, or folding the Toto into a full bathroom remodel. Here’s what we typically see in Cupertino:
| Service | Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
A flange correction or GFCI circuit add runs less than a full remodel, but those numbers depend on your specific slab and panel condition. A free estimate includes a look at the rough-in, the flange, and the electrical situation so the quote you get is the quote you build against. Call (866) 472-1908 to schedule yours.
Serving Cupertino, CA — Our Local Coverage Area
We’re based in the Cupertino area and know this community well, and we also provide Toto repair in Loyola. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in Cupertino
Yes, but it usually means adding a GFCI circuit near the bowl. Most 95014 ranch and Eichler-influenced baths were wired decades before bidet seats were common, so there’s no outlet behind the toilet. We coordinate the electrical rough-in, tile patch if needed, and Washlet install in one sequence. Call (866) 472-1908 and we’ll tell you exactly what your specific bath needs, free.
Always. We use genuine Toto OEM fill valves, flush towers, gaskets, and Washlet components on every repair. Aftermarket parts are the main reason Aquia dual-flush units and Washlet seats fail repeatedly, so we won’t put them in your home.
Yes. We replace or correct the flange, address the finished floor height, and set the new Toto on a proper seal. The cast-iron drain itself usually stays, but the flange connection gets brought up to spec so the new unit doesn’t rock or leak. Call (866) 472-1908 for an exact assessment.
A full bathroom remodel in Cupertino typically runs $9,000 to $28,000 depending on tile, vanity, shower configuration, and whether electrical or flange work is needed, with Toto repair in Los Altos available as well. A tub-to-shower conversion alone is $3,500 to $10,000. Call (866) 472-1908 for a line-item quote, estimates are free.
We’ll tell you straight. If the unit is 15 to 20 years old and the tank, bowl, and internals are all showing age, replacement usually makes more sense than repeated valve and gasket repairs. If it’s a newer Drake or Ultramax with a single bad component, a genuine Toto part fixes it for far less. We give you the honest math either way.
Service Areas Near Cupertino
We serve Cupertino and the surrounding South Bay and Peninsula communities, including Cupertino service area coverage that reaches into neighboring cities. For Toto work further up the Peninsula, see Toto service in Milpitas and Toto service in Santa Clara. We also work in San Bruno, South San Francisco, Millbrae, Burlingame, and Brisbane.
Book Your Toto Service in Cupertino Today
If your Toto is leaking, rocking, or just not flushing the way it should, don’t wait for a small flange issue to turn into a subfloor problem—we handle Toto in Sunnyvale and nearby areas. Call (866) 472-1908 to schedule a free estimate. Good construction doesn’t announce itself, it just works, year after year.
Written by Noel Carvalho, Owner at San Bruno Construction, serving Cupertino since day one.