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Toto Construction in Rancho Cucamonga, CA | Stallion Contractors
We provide independent Toto service across Rancho Cucamonga and nearby communities like Upland Toto service – installation, repair, and full bathroom remodels around Toto fixtures. The thing that sets our work apart here is knowing exactly how Rancho Cucamonga’s hard water, Santa Ana winds, and three-era housing stock stress these fixtures differently than neighboring cities. As a licensed general contractor, we handle the toilet, the rough-in, the electrical, and the tile – one crew, start to finish. Call (855) 600-3192 for a free estimate.

Why Rancho Cucamonga Residents Choose Us for Toto Service
We’ve installed, repaired, and remodeled around Toto fixtures across the Inland Empire for years. We know the Drake’s flush tower, the Ultramax II’s fill valve behavior, and the Washlet’s control-board failure patterns from the inside out. We’re an independent contractor – not authorized, sponsored, or endorsed by Toto – and we say so plainly. Our credibility comes from the work, not a badge. Ruben Montoya, who leads our crew, grew up in Colton and trained at San Bernardino Valley College, where the hands-on programs put him on job sites before he ever had a business card. That’s the lens we bring to every Toto sales & service job in Rancho Cucamonga: we look at the fixture, the rough-in, the wall, and the subfloor together, because a toilet doesn’t fail in isolation.
Styles & brands we work with







Common Toto Construction Problems We Solve in Rancho Cucamonga
- Phantom running and weak flush in Drake and Ultramax toilets. Rancho Cucamonga’s hard, mineral-heavy water eats fill valves and flush tower gaskets faster than most homeowners expect. The toilet gets blamed, but it’s usually the valve. We use genuine Toto OEM parts for anything inside the tank.
- Washlet and Neorest seat failures – blinking error lights, dead remote pairing. Years of 100°F+ summers and dry interior air take out seat heaters and control boards. We repair when the board and heater are serviceable, and we’ll tell you straight when a full seat replacement costs less than chasing a discontinued module.
- Hidden supply-line and closet-flange leaks on skirted one-piece models like the Aquia. The skirt hides the leak until water damage runs into the subfloor. This is common in 1990s tract bathrooms we remodel in the 91737 and 91739 ZIP codes.
- Slow seeps at tank-to-bowl connections on west- and south-facing walls. UV and thermal cycling cooks plastic and rubber components, leading to stained tile floors that homeowners scrub for months before calling us.
- Rough-in mismatches on Toto swaps in older Rancho Cucamonga homes. 1970s-80s tract homes in the 91730 core often have 10-inch rough-ins. Many Toto models need 12 inches. We scope this before demolition, not after tile goes down.
Toto Service in Rancho Cucamonga: What Local Conditions Mean for Your Equipment
Rancho Cucamonga is one of the few Inland Empire cities where new construction consistently happens alongside the retrofitting of 1980s-90s tract homes. The housing stock spans three eras: 1970s-80s tract homes in the 91730 core, 1990s-2000s master-planned communities in 91737 and 91739, and custom foothill estates in 91701 and 91702. In the 1990s master-planned bathrooms in 91737 and 91739, original builder-grade toilets and vanities are now hitting replacement age at the same time, and we’re seeing similar patterns in Toto in Ontario. Toto’s skirted one-piece and Washlet models often need a different rough-in and an electrical outlet at the wall that the original tract layout never provided. We scope that outlet and rough-in before demolition, not after tile goes down. That’s the difference between a clean Toto install and a project that fights you at every step.
Toto Models & Products We Service in Rancho Cucamonga
We work on the Toto Drake (CST744 series two-piece and MS bayonet-skirted models), the Eco UltraMax and Ultramax II one-piece lines, the Aquia dual-flush, and Washlet and Neorest electronic bidet seats, including the S-series and C-series. For anything inside the tank – fill valves, flush towers, gaskets – we use genuine Toto OEM parts. Aftermarket equivalents on Toto’s tower-style flush systems are a recurring call-back source, and we won’t gamble your bathroom on them. We keep the most common OEM parts stocked locally so Rancho Cucamonga homeowners aren’t waiting a week for a valve. For Washlet electronics, we repair when the board and heater are serviceable and tell you honestly when a full seat replacement makes more financial sense.
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AfterToto Service Pricing in Rancho Cucamonga
What you’ll pay depends on whether we’re swapping a valve or rebuilding a bathroom around a new Toto fixture. For reference, here are the price ranges we quote across Rancho Cucamonga:
| Service | Typical Range |
|---|---|
| Full Bathroom Remodeling | $9,000 – $28,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
Every free estimate includes a written line-item quote, so you see exactly what you’re paying for before work begins. No change orders down the line unless you ask for something different. Call (855) 600-3192 to schedule your free estimate – we’ll walk the bathroom with you and give you real numbers.
Serving Rancho Cucamonga, CA — Our Local Coverage Area
We’re based in the Rancho Cucamonga area and know this community well, including Toto service in Fontana. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in Rancho Cucamonga
No, and we don’t pretend to be. Stallion Contractors is an independent contractor serving Rancho Cucamonga service area homeowners. We install and service Toto products because we’ve spent years working with them, not because the manufacturer gave us a badge. Our warranty comes from our workmanship, and we stand behind it.
Yes, for anything inside the tank – fill valves, flush towers, gaskets – we use genuine Toto OEM. Aftermarket parts on Toto’s tower-style flush systems cause call-backs, and we’d rather do the job once. Call (855) 600-3192 to schedule a service visit.
It depends on the model and the failure. If the control board and seat heater are both serviceable, a repair makes sense. But on older Washlet seats with discontinued modules, a new seat often costs less than patching together a failing one. We’ll give you a straight answer – call (855) 600-3192 and we’ll diagnose it before you spend a dollar.
Most valve, gasket, and rough-in repairs are done in one visit. Full bathroom remodels around a Toto fixture typically run one to three weeks depending on scope, tile, and electrical. We scope the job up front so you’re not guessing.
A Toto toilet swap with a corrected flange and a new GFCI outlet at the wall typically runs $800 – $3,000 when done as part of a larger bathroom project. Standalone pricing depends on your home’s rough-in and electrical access. Call (855) 600-3192 for an exact quote – estimates are free.
Service Areas Near Rancho Cucamonga
We also provide Toto service in Grand Terrace and Toto service in Highgrove. We serve homeowners in Colton, Bloomington, Mentone, San Antonio Heights, Loma Linda, and Redlands as well – same crew, same standard of work.
Book Your Toto Service in Rancho Cucamonga Today
Whether it’s a failing fill valve or a full bathroom rebuild around a Toto Drake and Washlet, we’re ready to walk the job with you. Good work doesn’t need a sales pitch – it needs the right materials and someone who knows what they’re doing. Call (855) 600-3192 for your free estimate.
Written by Ruben Montoya, Owner at Stallion Contractors, serving Rancho Cucamonga, San Antonio Heights Toto service, and the Inland Empire.