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Toto Construction in Fontana, CA | Hampton Contractors
We provide independent Toto service across Fontana, from toilet and washlet repairs to full bathroom remodels built around Toto fixtures. The one thing that makes our Toto work here different: we know exactly how Fontana’s hard Inland Empire water and older slab-foundation tract homes stress these fixtures, so we diagnose the real problem rather than swapping parts blindly. Call (833) 467-4075 for a straight answer and a free estimate.
Hampton Contractors handles Toto sales & service the way a general contractor should: we install the fixture, tie it into the plumbing correctly, and stand behind the finished bathroom. We’re an independent Toto service provider, not a manufacturer-authorized dealer. That independence matters when the honest fix is a $40 fill valve instead of a $400 replacement.
Why Fontana Residents Choose Us for Toto Service
We’ve pulled and reset enough Toto Drakes, UltraMax units, Aquia dual-flush toilets, and Washlet seats across the Inland Empire to know which parts fail first and which repairs actually last. Fontana’s water has high mineral content, and that plays rough with Toto fill valves, flush towers, and bidet inlet filters. When we open up a Toto in 92335 or 92337, we’re usually looking at scale buildup or a slab-flange problem, not some mystery defect.
Brent Calloway started on construction sites in the High Desert at eighteen and has spent more than two decades learning which materials hold up and which ones don’t. His crew carries genuine Toto fill valves, flush towers, and gaskets so a Fontana repair doesn’t turn into a three-trip ordeal. Good work doesn’t need a disclaimer. You’ll get a direct diagnosis, a written line-item quote, and the repair done right.
Styles & brands we work with







Common Toto Construction Problems We Solve in Fontana
- Worn fill and flush valves on Drake and UltraMax toilets. Fontana’s mineral-heavy water coats valve internals with scale, which means weak flushes, running tanks, and water bills that climb in already-hot summers. We replace with genuine Toto valves when the model is still supported.
- Rocking toilets and sewer gas in older south-side tract homes. In 92335 and 92337, many homes sit on slab foundations. When a wax ring or closet flange fails at the slab, the toilet rocks, the bathroom smells, and slow drains disguise a floor-flange problem as a toilet problem.
- Washlet and bidet-seat control board failures. Mineral scale clogs inlet filters and forces control boards to overheat, especially on units running in 100°F-plus garages and utility rooms common in older Fontana homes without conditioned laundry spaces.
- Weeping tank-to-bowl gaskets on one-piece UltraMax units. Years of thermal cycling in unconditioned bathrooms stain tile and corrode closet bolts. We see this on south-side tract homes where bathrooms sit on exterior walls and temperature swings are brutal.
- Supply-line and flange retrofits on pre-1980s rough-ins. A new Toto on an old Fontana rough-in often needs more than a drop-in. We check the supply line, flange height, and slab condition before the fixture goes down.
Toto Service in Fontana: What Local Conditions Mean for Your Equipment
Fontana’s construction market splits between massive logistics and warehouse builds along the I-10 and I-15 corridors and the aging residential infill around them, which is why many homeowners turn to a General Contractor – Fontana for complex retrofits. That split defines what our crews actually do. South Fontana, particularly the 1950s-through-1970s tract homes in 92335 and 92337, was built before modern energy codes and before anyone imagined a Washlet seat drawing power in a hall bathroom. When we install a Toto in those homes, we’re frequently doing a slab-flange and supply-line retrofit at the same time. The same fixture in a newer master-planned subdivision north of the 210 is a clean drop-in. That one difference changes the scope, the labor hours, and the honest price. If you’re off Sierra Avenue in a 1962 tract home, expect the conversation to include flange height and shutoff valve condition. If you’re in a 2018 build north of Summit, it’s usually a much simpler swap.
On a 1962 tract home off Sierra Avenue in south Fontana, our crew pulled a leaking Toto Drake whose original closet flange had cracked at the slab and was letting sewer gas back into the hall bathroom. We replaced the flange, reset the toilet with a new wax ring and OEM fill valve, and tied it into a tub-to-shower conversion the homeowners wanted in the same bathroom. That’s the kind of combined scope Fontana’s older housing stock keeps throwing at us.
Toto Models & Products We Service in Fontana
We service the Toto lines we see most across Fontana: the Drake CST744 series two-piece toilets, UltraMax and UltraMax II one-piece units, Aquia dual-flush toilets, and Washlet and Washlet+ bidet seats, including Rialto Toto service when needed. Our parts approach is simple. When a model is still supported, we use genuine Toto fill valves, flush towers, and gaskets because the tolerances matter. Where the OEM supply has dried up, we use quality aftermarket parts we’d put in our own homes. If a bowl or tank is cracked, or a one-piece body has failed, we’ll tell you straight that replacement beats a patch. No runaround.
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AfterToto Service Pricing in Fontana
Here’s what a Toto-focused bathroom project typically runs in Fontana. These are the same ranges we quote across the High Desert and Inland Empire.
| Service | Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
What drives cost in Fontana is the age of the rough-in. A clean drop-in on a newer north-side slab is one price. A south-side 1960s bathroom that needs a flange replacement, new supply line, and valve work is another, and our Glen Avon Toto service team sees similar conditions nearby. Your free estimate includes the full scope, line by line, so there are no surprises after we open the wall. Call (833) 467-4075 for an exact quote on your Toto project.
Serving Fontana, CA — Our Local Coverage Area
We’re based in the Fontana 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 Fontana
We repair Washlet and Washlet+ seats in Fontana all the time, and replacement is rarely the first move. Most failures come down to mineral-clogged inlet filters, scale-bound valves, or overheated control boards from unconditioned spaces. We’ll diagnose the unit and tell you honestly whether a repair is worth it or whether the seat has reached the end of its life. Call (833) 467-4075 for a service visit.
That’s almost always a failed wax ring or a cracked closet flange at the slab, not the toilet itself. South Fontana’s 1950s-to-1970s tract homes sit on slab foundations, and when a flange cracks, the toilet rocks, sewer gas escapes, and slow drains follow — the same issues our Pedley Toto service crews handle regularly. We’ll pull the fixture, inspect the flange and supply line, and reset everything correctly. Call (833) 467-4075 and we’ll take a look.
Yes, but hard water means you’ll want the right flush valve materials and a plan for maintenance. Toto’s ceramic glaze and flush tower design hold up better than most in mineral-heavy water, but fill valves and Washlet inlet filters will still need periodic attention. We factor Fontana’s water into every Toto install we do.
Yes. We install customer-supplied Toto fixtures as long as the unit is new, undamaged, and compatible with your rough-in. We’ll inspect the flange, supply line, and shutoff valve before we set the fixture, because in Fontana those are often the real failure points. Call (833) 467-4075 to schedule the install.
In Fontana, a small bathroom remodel with a new Toto toilet, vanity, and shower work runs $5,000 to $12,000. A full bathroom remodel with a walk-in shower, new Toto fixture, tile, and fixtures runs $9,000 to $28,000. The final number depends on rough-in condition, slab work, and material choices. Call (833) 467-4075 for a free, written estimate.
Service Areas Near Fontana
Hampton Contractors serves Fontana and the surrounding High Desert and Inland Empire communities. We handle Toto service in Toto service in Colton for homeowners off the 10, and in Bloomington for Toto service in Bloomington neighborhoods that share the same slab-age housing stock. We also cover Hesperia, Victorville, Apple Valley, Oak Hills, and Spring Valley Lake. Our full Fontana service area is detailed here.
Book Your Toto Service in Fontana Today
Call (833) 467-4075 to schedule a free estimate for Toto repair, replacement, or a full bathroom remodel in Fontana. We’ll give you a straight diagnosis and a written line-item quote before any work begins.
Written by Brent Calloway, Owner at Hampton Contractors, serving Fontana and the Inland Empire.