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 Rialto, CA | Workshop Contractors
We’re Workshop Contractors, and we handle independent Toto service across Rialto: full bathroom remodels built around Toto fixtures, tub-to-shower conversions, walk-in shower installs, and repair work on everything from a Drake to a Neorest. The one thing that makes our Toto work different here is that we know Rialto’s housing stock, meaning we know which failures show up on the flat 92376 side and which ones walk through the door from the foothill edge of 92377. Call (844) 384-3361 for a free estimate on any Toto project.
Why Rialto Residents Choose Us for Toto Service
Most contractors in the Inland Empire treat Toto in Fontana as just another fixture brand. We don’t, because Rialto’s water, heat, and slab conditions put real stress on these toilets and Washlets in ways a showroom never shows you. Noel Figueroa has been working Rialto’s tract homes long enough to spot a hard-water-scaled fill valve from across the bathroom. He grew up in the Vineyard neighborhood of Ontario and learned framing and finish work the way it should be learned: on job sites, with tradesmen who cared whether the tile lined up at the grout joint. That carries into how we approach Toto service here. We stock OEM-compatible parts, we know the local plumbing quirks, and we’ll tell you straight when a repair makes sense and when a 15-year-old toilet with a cracked tank is better off replaced.
We’re also a Toto sales & service resource for Rialto homeowners, not a manufacturer affiliate. Independence means our only job is the best fix for your bathroom, not moving you toward a brand upsell.
Styles & brands we work with







Common Toto Construction Problems We Solve in Rialto
- Hard-water scaling in Toto fill and flush valves. Rialto’s water is mineral-heavy, and the 1.28 GPF Drake and Eco Ultramax models common in 1980s and 1990s tracts scale up fast. A scaled fill valve means weak flushes and a toilet that runs. We clean or replace with OEM parts and can add an inline filter where the water is especially bad.
- Heat-stressed plastic tanks and Washlet seat housings. Summer afternoons in Rialto push past 100°F, and a west-facing bathroom turns into an oven. Plastic tank components and Washlet housings warp or crack over a few seasons of that, causing leaks and electronic failures. We see this on the 92376 flats more than anywhere else.
- Cracked or loose closet flanges on builder-grade Toto toilets. Original Toto installations from the 1990s into the 2000s often sit on flanges that have cracked or pulled loose from the slab. The toilet rocks, the wax ring fails, and you get a slow leak at the base. Flat 92376 lots are the usual offenders because slab movement is concentrated at the flange.
- Flange racking and base leaks on the 92377 foothill edge. Seasonal soil movement and drainage shifts on sloping lots can rack a flange out of level even when the Toto fixture itself is fine. One-piece units are especially sensitive to this because they don’t flex.
- Washlet electronic failures in hot, dry air. Toto Washlets are great until the board cooks. Dry inland air and repeated heat cycling shorten the life of older Washlet electronics, and we regularly diagnose whether the issue is the board, the remote, or the seat sensor before quoting any replacement.
Toto Service in Rialto: What Local Conditions Mean for Your Equipment
Here’s the thing about Rialto that doesn’t show up on a spec sheet: the city is split by elevation. Homes up toward the San Bernardino Toto service foothills in 92377 sit on sloping lots that can move with winter rains, while the 92376 flats down by the rail and warehouse corridor sit on compacted fill that shifts differently under summer heat. Because 92377 foothill properties move seasonally, Toto toilets installed there often need the closet flange re-leveled and the subfloor checked for movement before a new fixture goes in, a step flat 92376 lots usually don’t require. Skip that step on a foothill property and you’ll set a brand-new Drake on a flange that’s already tilting, then wonder why the wax ring fails within a year. We check this on every install above Baseline, and it’s one reason our Toto work holds up in this city.
Toto Models & Products We Service in Rialto
We work on the full Toto line most common in Rialto bathrooms: Drake and Drake II, Eco Ultramax, Washlet seats and integrated Washlet models, and Neorest. We also handle the rest of your bathroom construction around those fixtures, including Rialto service area coverage for full bathroom remodels, tub-to-shower conversions, and walk-in shower installs. For critical parts like fill valves, flush valves, and Washlet electronic boards, we install OEM Toto components so calibration and durability stay correct. For less critical items like supply lines, tank bolts, and gaskets, we’ll use quality aftermarket parts when they meet spec and save you money. We keep the most common Rialto failure parts on hand so turnaround is measured in days, not weeks.
See the difference
Before
After
Before
After
Before
AfterToto Service Pricing in Rialto
| Service | Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
Repair work like a fill valve swap or a flange reset runs well below these ranges, and we quote it as a fixed line-item price before we start. Your free estimate includes an inspection of the toilet and the flange, the supply line, and the shutoff valve so there’s no surprise once work begins. If you’re weighing a repair against a replacement on an older Toto, we’ll walk through both numbers with you so you can decide with real figures in hand. Call (844) 384-3361 and we’ll put together a quote for your specific Rialto address.
Serving Rialto, CA — Our Local Coverage Area
We’re based in the Rialto area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in Rialto
Hard water is the usual culprit. Minerals from Rialto’s supply scale up the fill valve and flush valve on Toto Drakes and Eco Ultramaxes, which prevents the valve from sealing fully and leaves the toilet running. We replace the valve with an OEM Toto part and, on the worst water, suggest an inline filter. Call (844) 384-3361 and we’ll diagnose it on-site.
Yes, and we do it regularly in 1960s through 1990s tract homes. The main considerations are the distance from the existing outlet and whether the bathroom circuit can handle the Washlet’s draw. If the outlet is out of reach, we add a dedicated circuit rather than running a drop cord across the vanity. Call (844) 384-3361 for a site check.
A rocking toilet almost always means the closet flange is cracked, loose, or out of level. On Rialto’s flat 92376 lots, slab movement cracks the flange. On the Toto service in Muscoy 92377 foothill edge, seasonal soil shift racks it. Either way, we reset the flange, check the subfloor, and install a new wax ring so the base seal holds. Call (844) 384-3361 and we’ll inspect yours for free.
Yes. Neorest units integrate the Washlet electronics into the toilet, so we diagnose both plumbing and electronic failures, from water flow issues to board and sensor faults. We use OEM parts for any electronic replacement and give you a straight repair-vs-replace number before you commit. Call (844) 384-3361 with your model number and we’ll take it from there.
Heat and dry air stress the plastic seat housings and the electronic boards inside Washlet seats, especially in west-facing bathrooms on 100°F-plus summer afternoons. The board overheats, the seat cracks, or the sensor stops reading correctly. Some failures are repairable; others point to a replacement seat. Call (844) 384-3361 for an exact diagnosis and quote.
Service Areas Near Rialto
We also run Toto service into the surrounding Inland Empire. That includes Toto service in Riverside, as well as work in Loma Linda, Woodcrest, and down toward Toto service in El Cerrito Corona. If you’re just outside Rialto and wondering whether we cover your street, call us at (844) 384-3361.
Book Your Toto Service in Rialto Today
If your Toto is running, rocking, leaking, or just not flushing the way it used to, call us at (844) 384-3361. We’ll get you on the schedule, diagnose the issue, and give you a fixed price before any work starts. Build it right the first time. The second time costs twice as much and nobody’s happy about it.
Written by Noel Figueroa, Owner & General Contractor at Workshop Contractors, serving Rialto and the Inland Empire.