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Toto Construction in Montclair, CA | Sycamore Contractors
We provide independent Toto service across Montclair, from new toilet installs to full bathroom remodels built around Toto fixtures. What makes our Toto work different here is a single fact: most of this city’s 1950s-era slab foundations force decisions that don’t exist in neighboring towns with raised floors. If you’re planning a Toto upgrade or need a repair, call (877) 265-6284 for a free estimate.
Sycamore Contractors installs and services Toto toilets, Washlet bidet seats, tub-to-shower conversions, and complete bathroom remodels throughout Montclair. We’re a licensed general contractor, not a Toto-authorized shop, but we know the brand’s parts ecosystem as well as anyone offering Toto service in Ontario or across the Pomona Valley. The difference is we handle the construction side, too: slab work, drywall, tile, electrical. That matters when a simple wax ring failure turns into breaking concrete.
Why Montclair Residents Choose Us for Toto Service
Montclair’s housing stock is overwhelmingly small 1950s-to-1970s stucco tract homes with original galley bathrooms and cast-iron plumbing rough-ins. That’s the context every Toto job here lives inside. A toilet swap isn’t always a toilet swap. A tub-to-shower conversion isn’t a matter of sliding in a new pan. We plan for what’s under the floor before we order the fixture.
Nate Calloway runs Sycamore Contractors with a simple bias: use the right material for the actual condition, not the one that photographs best. That means OEM Toto flush valves and fill valves when performance and warranty matter, quality aftermarket wax rings and supply lines where the manufacturer’s name on the part adds nothing. Montclair homeowners call us because we’ll tell them which is which. We bring options, you make the call.
Styles & brands we work with







Common Toto Construction Problems We Solve in Montclair
- Wax ring and flange failures under Toto Ultramax II toilets. Montclair’s original 1950s cast-iron closet flanges corrode from the inside. Add the weight of a one-piece Ultramax II and you get slow leaks into the slab that nobody notices until the floor stains or the bathroom smells. We break out only what’s needed, set a new PVC flange, and reset the toilet on a fresh wax ring.
- Hard-water mineral buildup in Toto ceramic disc cartridges and showerheads. Inland valley water runs hard. Montclair pulls from the same supply as the rest of the Pomona Valley, and that calcium and magnesium scale shortens the life of cartridges, aerators, and showerhead nozzles. We clean and rebuild when we can, replace with OEM when we can’t.
- Washlet sensor and pump failures during Santa Ana wind events. Fine dust blows through older Montclair windows and bathroom vent gaps. Toto Washlet units, particularly the S550e and C200, pull that dust into the seat’s sensor array and pump housing. Dry heat accelerates it. If your Washlet stops heating water or the seat sensor flickers after a windy stretch, that’s the likely culprit.
- Flapper and fill-valve wear in Toto Drake tanks. Montclair’s municipal water carries chlorine and sediment, and the Drake’s flapper sees it every flush. Five to seven years is a common replacement interval here. A running toilet from a worn flapper can burn through a lot of water before anyone notices.
- Skirted toilet installations on concrete slab floors. Toto’s skirted models look clean, but the skirt design doesn’t always line up with a 1950s-era rough-in set 12 inches off the wall. Sometimes the flange needs moving. If the drain is in the slab, that’s concrete work, not a plumbing call. We handle both.
Every one of these is a construction service as much as a plumbing service. That’s the part generic handyman operations miss.
Toto Service in Montclair: What Local Conditions Mean for Your Equipment
Montclair is essentially built out. There is almost no vacant land left, and what’s here dates mostly from the post-war building boom and the 1960s-70s commercial expansions along Holt Blvd and Central Ave. That changes what a Toto project looks like. In newer cities like La Verne, a bathroom remodel starts with a blank-ish floor and plastic plumbing. In Montclair, we’re working inside a 5×8 original galley bathroom with a toilet drain set in a concrete slab. Replacing an old skirtless toilet with a new Toto one-piece often means breaking and re-pouring around the flange to make the new footprint work. That’s a cost and scheduling factor specific to this city. On a slab home off Holt Blvd, you don’t just unbolt the bowl and drop in a new one. You plan for the concrete.
The same goes for the housing stock itself. Single-story stucco tract homes on modest lots don’t give you room to expand the bathroom outward. You work up, not out. That’s why tub-to-shower conversions and walk-in shower installs in Montclair lean so heavily on tight-space Toto fixtures and why we’re careful about which models we recommend. A wide vanity in a 5×8 bathroom eats the shower. A Toto Drake with a round bowl buys back an inch that matters at the door swing.
Toto Models & Products We Service in Montclair
We install and repair the Toto lines we see most in this valley: the Ultramax II (MS604114CEFG) one-piece elongated toilet, the Drake (CST746) two-piece, and the Washlet S550e and C200 electronic bidet seats. We service EcoPower flush valve and fill valve assemblies as well. Our approach is straightforward: OEM Toto parts for anything that touches flush performance, seals, or the electronics, and quality aftermarket parts for standard install hardware like supply lines and wax rings. For older Toto models with discontinued parts, we’ll say so plainly and suggest upgrading to a current model rather than chasing scarce components. Pouring money into a discontinued fill valve assembly on a 2002 toilet rarely makes sense.
Nate’s team can also run full Toto-specific bathroom construction: Toto sales & service support from rough-in through finish, tile, glass, electrical, and trim.
See the difference
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AfterToto Service Pricing in Montclair
Toto construction work ranges widely depending on how much of the room we’re rebuilding. On the smaller end, a straightforward toilet swap with a new wax ring and flange repair runs inside our general bathroom service minimums. At the larger end, full bathroom remodels in Montclair’s original galley layouts cost real money because of the slab work and tight-space carpentry involved. Here’s what you can expect:
| Service | Typical Montclair Range |
|---|---|
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
| Full Bathroom Remodeling | $9,000 – $28,000 |
What drives the cost here more than anything is what’s under the floor. Homes with cast-iron DWV piping and slab-set drains cost more to modify than a newer home with plastic plumbing. Every free estimate includes a look at the rough-in, an honest read on whether your flange needs work, and a written line-item quote before anything gets ordered. Call (877) 265-6284 to schedule yours.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair area and know this community well, just as we know Toto in Claremont. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in Montclair
Can you replace my old Toto toilet with a new Toto model in a Montclair home with a slab foundation?
Yes, and this is most of what we do in Montclair. We remove the old toilet, inspect the cast-iron or galvanized flange, and determine whether the new model’s rough-in matches what’s already in the concrete. If the flange is corroded, we break out a small section of the slab, install a new PVC flange, and re-pour. It adds a day to a typical swap and pushes the cost to the middle of our bathroom service range. Call (877) 265-6284 and we’ll tell you what your floor needs before you buy the toilet.
Why does my Toto Washlet keep failing in Montclair?
Dust and dry heat are the usual answers here. Santa Ana events push fine valley dust through old bathroom vents and window gaps, and the Washlet’s sensor array and pump housing collect it. Over time, the seat stops heating water, the remote stops responding, or the pump whines. We clean the internals first, replace OEM sensors and pumps when needed, and often suggest sealing older bathroom vent openings to slow the problem. If yours is failing repeatedly, call (877) 265-6284; we’ll diagnose whether it’s worth repairing or replacing.
Do you carry OEM Toto parts for older models like the Drake?
We stock OEM Toto fill valves and flush valve assemblies for the Drake and Ultramax lines and can order what we don’t have. For models where Toto has discontinued the part, we’ll tell you directly and recommend a current model rather than installing a used or third-party substitute that won’t hold up. Standard install hardware like supply lines and wax rings we source from quality aftermarket brands; there’s no benefit to paying a Toto premium for a wax ring.
Can you convert my tub to a Toto walk-in shower in a small Montclair bathroom?
Yes, and this is one of the most common requests we get in Montclair’s original 1950s galley bathrooms. You lose the tub and gain a low-threshold shower with Toto fixtures, linear or center drains, and usually a frameless glass panel. On slabs, expect some concrete work around the drain relocation. A tight 5×8 bathroom means we recommend fixtures sized for the space, not the showroom. Call (877) 265-6284 to get a written quote.
What Toto products do you recommend for a bathroom remodel in a hot inland climate?
For Montclair’s heat and hard water, we lean toward Toto toilets with ceramic glaze that resists mineral buildup and Washlet models with sealed sensor housings. A Toto Drake is the reliable workhorse; the Ultramax II one-piece is easier to clean and fits where floor space is tight. For shower fixtures, models with fewer exposed seals and cartridges tend to outlast the fancy multi-function units in hard water. We’ll show you options that match your budget and your water, not just the catalog photos.
Service Areas Near Montclair
While most of our Toto construction work is right here in Montclair, we also serve the surrounding Pomona Valley and adjacent Inland Empire communities. If you’re a little further out, we cover Temecula, Murrieta, Murrieta Hot Springs, Fallbrook, Rainbow, and Wildomar. Check our Montclair service area page to confirm your ZIP code. We also run dedicated Toto pages for the neighbors: Toto service in Midway City and Toto service in Fullerton.
Book Your Toto Service in Montclair Today
Whether it’s a flapper replacement or a full bath remodel built on a slab, we’ll tell you what it costs before we start. Call (877) 265-6284 to schedule your free estimate. Same-day service is available for straightforward toilet and flush-valve repairs when our schedule allows.
Written by Nate Calloway, Owner at Sycamore Contractors, serving Montclair, Upland, and the Pomona Valley.