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Toto Construction in San Bernardino, CA | Mason Remodeling
We provide independent Toto service across San Bernardino, CA, from full bathroom remodels that center on new Toto fixtures to repairing the Drake, Ultramax, and Aquia toilets already in your home. As a San Bernardino General Contractor, we handle everything from fixture installation to complete renovations. The one thing that makes our Toto work here different is that we actually know this city: the hard water, the clay soil, the older sewer laterals, and how each one shortens the life of a fill valve or wax ring in ways a generic plumber never sees coming. Call (803) 680-2547 for a free estimate, and we’ll tell you what’s wrong and what it costs before any work starts.
Why San Bernardino Residents Choose Us for Toto Service

We’ve been remodeling bathrooms and resetting Toto toilets in San Bernardino since 2004, and we’ve learned one thing that matters more than any marketing line: this city is hard on plumbing. Toto makes excellent toilets. The water here does not make it easy on them. When a Toto Drake starts running or an Aquia stops flushing completely, the cause is almost always mineral scale, a failed wax ring, or a worn flush tower seal, and we fix all three weekly in homes from the north end to the south side.
Isaac Pruett, our owner, grew up watching his dad build and repair homes in the San Fernando Valley, and he spent nearly two decades remodeling houses across Los Angeles before Mason Remodeling made San Bernardino a core service area. He still checks trim work first on every job because his dad was a finish carpenter. That same attention to detail applies to Toto service: we pull the toilet, inspect the flange, check the subfloor, replace what’s worn, and leave the bathroom cleaner than we found it. You’ll know who’s coming before we arrive; our technician’s name and photo are sent ahead of every visit, and every crew member is background-checked and shows a photo ID at the door. That’s the Threshold Standard, and it’s not optional.
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Common Toto Construction Problems We Solve in San Bernardino
- Fill valve and flapper degradation from hard mineral water. San Bernardino’s water carries a heavy mineral load, and it collects in the tank, on the flapper, and inside the fill valve. We see Toto Drakes that run constantly because the flapper can’t seat against mineral buildup, and we solve it by cleaning the tank and installing a genuine Toto OEM fill valve and flapper, not a universal part that sort of fits.
- Wax ring failure at the flange, leading to hidden leaks and subfloor damage. Older San Bernardino homes, especially those with original sewer laterals, settle more than homeowners realize. The toilet shifts a fraction of an inch, the wax ring loses its seal, and water leaks into the subfloor while everything looks dry above. We replace the wax ring and, when needed, the flange itself, before the subfloor rots.
- Flush tower and seal wear on Toto Aquia dual-flush models. The Aquia’s flush tower uses a rubber seal that hardens and cracks over time, particularly in homes where the water has high chlorine or mineral content. The result is an incomplete flush or a toilet that needs two trips to the handle. We replace the flush tower seal with OEM or high-quality aftermarket parts depending on the model year.
- Electronic bidet-seat inlet filter clogs and solenoid wear on Toto Washlet units. Toto Washlet and S500e seats have a tiny inlet filter that collects the same minerals that clog anything else. When the filter clogs, the seat loses pressure or stops spraying entirely. We clean or replace the filter, and when the solenoid has worn out, we replace it rather than telling you to buy a new seat.
- Cracked or broken PVC flanges on older toilets. This is the one we find most often in San Bernardino homes built before the 1990s. The flange, the plastic ring that anchors the toilet to the floor, cracks from age or from the toilet rocking on an uneven floor. A cracked flange means the toilet is not sealed, and it will leak no matter how new the wax ring is.
Toto Service in San Bernardino: What Local Conditions Mean for Your Equipment
Here’s the fact that most Toto pages won’t tell you about San Bernardino: this city sits on expansive clay soil, and the homes built on it move. The clay swells when it rains and shrinks when it dries, and over decades, that cycle puts slow, steady pressure on sewer laterals and floor framing. We see the result in bathrooms all over town: toilets that are no longer sitting perfectly flat on their flanges, wax rings that have separated, and hairline leaks that never show up on the surface. It’s far more common here than in newer areas or cities with sandier soil. In the north-end neighborhood near Kendall Drive, we pulled a Toto Ultramax II that had been running for months and left a faint sewer smell the homeowner noticed every evening. The wax ring had failed, the PVC flange had cracked, and mineral buildup in the tank had weakened every flush. We replaced the flange, reset the toilet with a new OEM fill valve and flapper, and cleaned the tank. The running stopped that day, and the smell was gone. That’s the kind of fix you don’t get from a brand page, and it’s the reason we tell every San Bernardino homeowner this: if your Toto has been acting odd for more than a week, there’s probably a reason worth looking at before it turns into subfloor damage.
Toto Models & Products We Service in San Bernardino
We work on the full range of Toto residential product lines. That includes the Drake and Eco Drake gravity-flush toilets, the Ultramax and Ultramax II one-piece models, the Aquia dual-flush lineup, and Washlet and S500e bidet seats. Our parts approach is simple and honest: when genuine Toto OEM fill valves, flappers, flush towers, and bidet-seat components are available and priced reasonably, we use them. When a model is discontinued or the OEM part is outrageously priced, we use high-quality aftermarket parts and tell you exactly what we’re installing and why. For San Bernardino turnaround, we stock the most common Toto repair parts in our local vans: fill valves, flappers, flush tower seals, and bidet inlet filters. That means a simple repair usually gets done in one visit, not one visit to diagnose and a second visit after shipping.
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AfterToto Service Pricing in San Bernardino

Toto repair and replacement pricing in San Bernardino varies by what’s actually wrong, and we’ll give you a written price before any work begins, every time. Here’s a snapshot of what we charge for the two most common Toto-adjacent projects:
| Service | Price Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
Smaller repairs, like a fill valve or flapper replacement on a Toto Drake, typically run a fraction of those numbers, and we’ll tell you the exact price over the phone or after a quick look. The estimate is free, in writing, and it doesn’t change once work starts. Call (803) 680-2547 to schedule yours.
Serving San Bernardino, CA - Our Local Coverage Area
We’re based in the San Bernardino 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 San Bernardino
Almost certainly yes. San Bernardino’s water is mineral-heavy, and those minerals coat the flapper and fill valve until they can’t seal properly, which is why the toilet runs. We clean the tank and install a new flapper and fill valve, and the running stops. Call (803) 680-2547 and we’ll get you on the schedule, usually within a day or two.
Yes. We replace Toto toilets all the time during Bathroom Remodeling - San Bernardino projects, walk-in shower installations, and smaller updates. We’ll pull the old fixture, inspect the flange and subfloor, and set the new Toto properly so it isn’t leaking in six months. Estimates are free, and the price is always in writing before we start.
Mineral deposits from San Bernardino’s water collect in the inlet filter and restrict water flow to the seat. The fix is usually a filter cleaning or replacement, and if the solenoid has worn out, we’ll replace that too. It’s a quick repair, and it beats replacing a perfectly good Washlet seat.
We do. When we build a walk-in shower, the toilet is often right next to it, and the last thing you want is a leaking toilet soaking your new tile work. We’ll set the Toto properly, level it, and seal it so the whole bathroom works together.
If the bowl and tank are intact and the flange is sound, we repair it. If the bowl is cracked, the flange is broken beyond a simple replacement, or the electronic controls on a Washlet have failed, replacement usually costs less in the long run. We’ll give you a straight answer and a written price either way. Call (803) 680-2547 for a free assessment.
Know who’s coming, know what it costs, know it’s backed up – everything else is just noise.
Service Areas Near San Bernardino
We serve the entire San Bernardino area, including nearby Los Angeles, Riverside, and Ontario. For Toto service specifically, we also cover Toto service in Fontana and Toto service in Moreno Valley, and our San Bernardino service area page maps out every neighborhood we cover. For more about what we do with Toto fixtures across the region, visit our Toto sales & service page.
Book Your Toto Service in San Bernardino Today
Need a Toto toilet repaired, replaced, or built into a new bathroom? Call (803) 680-2547 now. A live person answers every call, 24/7. You’ll get a free estimate, a written price before we start, and a 365-Day Done Right Promise if the work isn’t perfect within a year.
Written by Isaac Pruett, Owner at Mason Remodeling, serving San Bernardino since 2004.











