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 Fontana, CA | Workshop Contractors
We provide independent Toto service across Fontana, from fixture swaps in 1990s tract homes to full bathroom remodels in newer foothill subdivisions. What makes our Toto work different here is that we know which failures are actually the fixture and which ones are the slab underneath it. If you’re dealing with a rocking, leaking, or weak-flushing Toto in any Fontana ZIP, call (844) 384-3361 and we’ll tell you straight what’s going on.
We’re a full-service general contractor, not a Toto dealership. That means when we open up a bathroom, we see the whole system; the fixture, the flange, the flooring, the venting, the water supply. Fontana homes across 92335, 92336, and 92337, plus nearby Pedley Toto service areas, put Toto fixtures through conditions you won’t find in a coastal remodel market, and we’ve learned exactly what fails first.
Why Fontana Residents Choose Us for Toto Service
We’ve torn into enough Fontana bathrooms to know Toto’s fixture families inside out – which closet-flange specs match which Drake or Ultramax generation, and which failures are actually the fixture versus the slab underneath it. We’re an independent contractor, not authorized or endorsed by Toto, and we buy OEM parts through normal distribution channels. That independence matters: we’re not obligated to push a replacement over a repair, and we won’t.
Noel Figueroa, our owner and general contractor, learned framing and finish work on Inland Empire job sites before he could rent a truck, and he’s spent decades since working across Ontario, Pomona, and the cities along the I-10/I-15 corridor, including Rialto Toto service areas. When a Fontana homeowner calls about a Toto that’s been rocking for six months, he knows the question isn’t just “which part failed”; it’s “why did it fail here.” Build it right the first time. The second time costs twice as much and nobody’s happy about it.
We use Toto OEM fill valves, flush valves, gaskets, and supply lines on anything that touches the water path or seal. We source and install in the same house, under one contract, with one schedule. For Toto sales & service questions, you’re talking to the same crew that will show up with tools.
Styles & brands we work with
Common Toto Construction Problems We Solve in Fontana
- Fill and flush valves scaling and failing early on Fontana’s hard municipal water. The toilet still “works” but flushes weak and the tank runs between cycles. In the 92335 and 92337 tracts we service, hard water mineral buildup shortens valve life compared to neighboring cities with softer supply. We replace with OEM Toto valves and set the water level right, not just “close enough.”
- Wax ring and closet flange failures from slab movement on expansive clay soils. This one is everywhere in the newer 92336/92337 foothill subdivisions. The clay under the slab expands and contracts, the slab shifts, and the flange cracks. The toilet rocks at the base and leaks around the wax ring. Fixing it means cutting out the old flange and re-setting it to solid concrete, not just bolting the bowl down tighter.
- WASHLET seats and NEOREST control boards degrading in hot garages and unshaded tract baths. We see this a lot in Fontana homes where summer interior temperatures climb over 100°F and storage spaces bake. Electronics don’t like that. We diagnose whether it’s the board, the seat, or the power supply before recommending repair or replacement.
- Cracked tank gaskets and supply-line leaks on 1990s – 2000s builder-grade Totos reaching end of life. Across the master-planned tracts in 92336 and 92337, the original Toto fixtures from the build-out era are hitting the 20-to-25-year mark. Tank gaskets dry out, supply lines crack at the fitting, and small leaks turn into flooring damage if ignored.
- Weak flushes in older southern Fontana 92335 homes with low-flow retrofits. We often find early low-flow Toto models in mid-century tract homes that were retrofit piecemeal over the years. The drain lines are fine; the flush volume and valve timing aren’t matched. An OEM fill valve and proper water level fixes most of these.
Toto Service in Fontana: What Local Conditions Mean for Your Equipment
Because Fontana’s growth is driven by the I-10/I-15 warehouse corridor, a big share of our Toto calls are in tract homes in 92336/92337 whose owners work shifts at those distribution centers. We schedule fixture sets and water tests around odd-hour availability and often do the tear-out at dawn before the summer heat hits, the same early-morning window the concrete crews use. That scheduling reality is specific to Fontana; we don’t structure our days this way for jobs in Corona, Glen Avon Toto service, or Sunnyslope. Here, the warehouse shift calendar shapes when people are home, and we’ve learned to work with it.
Fontana’s hot, dry summers also force early concrete placement on slab work, because a pour that starts at noon cures too fast and cracks. When a Toto sits on a slab that cracked or heaved from expansive clay, the fixture inherits that movement. We don’t just replace parts; we check what the slab is doing under the flange so the fix lasts.
Toto Models & Products We Service in Fontana
We service the full Toto lineup common in Fontana homes: the Drake two-piece family, including the ECO Drake 1.28 gpf; the Eco Ultramax one-piece; NEOREST integrated smart toilets; and WASHLET electronic bidet seats like the S550e and C5-class. For anything on the water path or seal, we use Toto OEM parts. For consumables like bolts and wax-free seals, we use well-known aftermarket components that hold up. We’re honest about repair-versus-replace: a fill valve on a sound bowl is a repair, but a NEOREST with a dead board and a scaled valve usually isn’t worth chasing.
See the difference
Before
After
Before
After
Before
AfterToto Service Pricing in Fontana
Here’s what Toto-related bathroom work typically runs in Fontana. These ranges come from jobs we’ve actually bid and built here, not national averages:
| Service | Typical Fontana Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Shower Replacement | $3,000 – $8,500 |
| Bathroom Vanity Installation | $800 – $3,000 |
What drives the cost in Fontana: whether the slab needs leveling before tile goes back, whether the existing drain lines are cast iron or ABS, and whether the job touches load-bearing framing. Our free estimate walks the whole bathroom and gives you a written line-item quote, not a vague range. Call (844) 384-3361 to get an exact number for your project.
Serving Fontana, CA — Our Local Coverage Area
We’re based in the Fontana area and know this community well, and we also handle Toto service in Bloomington. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in Fontana
Usually both. In the 92336/92337 foothill tracts on expansive clay, slab movement cracks the closet flange and crushes the wax ring. The fixture is sitting on a broken foundation, literally. We cut out the old flange, set a new one anchored to solid concrete, re-level the floor if needed, and use an OEM wax-free seal. Call (844) 384-3361 and we’ll diagnose it before you spend money on parts.
Fontana’s municipal water is hard; mineral scale from the Inland Empire supply builds up on the valve seat and diaphragm until the fill becomes weak and the tank runs. A cheap aftermarket valve lasts a year or two. We install Toto OEM fill valves and set the float so the valve isn’t constantly cycling, which extends its life in local water conditions.
Yes. A WASHLET seat is a separate component from the bowl and tank, and in most cases we can swap in a new OEM seat without touching the fixture. If the bowl is compatible and the power supply is intact, it’s a straightforward replacement, not a remodel.
Usually yes, and it’s one of the more common projects we do in the older southern Fontana tracts. The existing tub footprint often converts cleanly to a walk-in shower, and you get better drainage and lower maintenance than a builder tub from the 1960s or 1970s. A conversion in a 92335 home typically runs $3,500 to $10,000 depending on valve relocation and tile scope. Call (844) 384-3361 for a free in-home estimate.
Depends on what died. If the board cooked in a hot garage or unshaded bath, replacement parts cost enough that repair often creeps toward the price of a quality traditional Toto. If it’s a water valve scaling issue, we fix it. We’ll give you the straight comparison before you commit. Call (844) 384-3361 and we’ll assess it on-site.
Service Areas Near Fontana
Beyond Fontana, we handle Toto service and bathroom construction throughout the surrounding Inland Empire. That includes Fontana service area ZIPs 92335, 92336, and 92337, plus nearby Toto service in Sunnyslope, Toto service in Corona, Loma Linda, and the northern foothill communities along the 15.
Book Your Toto Service in Fontana Today
If your Toto is leaking, rocking, weak-flushing, or just due for an honest evaluation, call (844) 384-3361 to schedule a free estimate. We’ll show up on time, look at the whole bathroom, and tell you what it costs before any work begins.
Written by Noel Figueroa, Owner & General Contractor at Workshop Contractors, serving Fontana and the Inland Empire.