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 Sun City, CA | Alder Contractors
We provide independent Toto service across Sun City, CA, handling everything from aging one-piece toilet swaps to full tub-to-shower conversions in single-story ranch tract homes. What makes our Toto work different here is that we know these exact houses: 1960s through 1990s slab-foundation stucco builds where original fixtures fail in predictable ways tied to local hard water and triple-digit heat. We’re Alder Contractors, led by Nelson Ibarra, and we’ve been working the Inland Empire’s residential remodeling market for close to three decades. Call (833) 467-7020 for a free estimate on your Sun City Toto project.
Why Sun City Residents Choose Us for Toto Service
Most plumbers who roll through a Sun City neighborhood can swap a fill valve. Fewer know that a 1990s Toto Carlyle one-piece has a tank-to-bowl gasket tolerance that a generic replacement won’t hold, or that a Washlet S550e burning through heating elements usually points to scale buildup in the internal heater rather than a board failure. As Toto specialists, our crew has installed and serviced these fixtures across hundreds of Riverside County retrofits and remodels, so we’re familiar with the fill valves, flappers, and wax-ring tolerances they actually demand. We’re an independent Toto service provider and are not authorized, sponsored, or warranty-endorsed by Toto. Our credibility comes from the work, not a badge.
Nelson Ibarra grew up in the Willow Avenue corridor of Rialto and spent years at Chaffey College in Rancho Cucamonga learning building technology hands-on. His father, a drywall finisher, dragged him to job sites as a kid. That’s where the trade got into his blood before a textbook ever did. When we walk into your Sun City home, we’re looking at the whole picture: the wall behind the toilet, the subfloor under the shower pan, the HOA’s paint-color list taped to the refrigerator.
Styles & brands we work with







Common Toto Construction Problems We Solve in Sun City
- Washlet electronic seat failures from hard water and heat. Sun City’s mineral-heavy Inland Empire water clogs bidet nozzles with scale, and years of triple-digit summer heat cycling burn out heater elements. If your S550e or C100-class seat stopped warming or cleaning properly, we diagnose it honestly and price a repair against a replacement so you’re not sinking money into a dead unit.
- Original Carlyle and Promenade one-piece toilet tank leaks. These 1980s and 1990s tract-build fixtures develop tank-to-bowl gasket leaks and worn fill valves after decades of service. Many of them are the old 3.5 gpf units, and most Sun City homeowners are better off replacing them entirely during a bathroom remodel than patching them again.
- G-Max and Performance flush flapper failures from dry inland air. Toto’s flappers harden and warp after years of Santa Ana-dry conditions, causing phantom refills and silent running-water bills. For homeowners on fixed incomes, that’s a real cost we can stop with the right OEM flapper instead of a generic one that won’t seat properly.
- Closet flange and wax ring failures on slab foundations. Sun City homes sit on slabs, and decades of settling plus root intrusion through old plumbing lines means flanges crack and wax rings fail. Sewer gas and slow drains show up looking like a toilet problem, but it’s actually a flange problem we have to fix below the bowl.
- Tub-to-shower conversion scope that includes the toilet swap. We rarely open a Sun City master bath for a shower conversion without finding the original Toto one-piece needs replacing too. We scope the toilet with the shower from day one, so you’re not paying for a second trip later.
Toto Service in Sun City: What Local Conditions Mean for Your Equipment
Sun City is a master-planned, age-restricted retirement community in the Menifee and Campbell Ranch area of Riverside County. Construction work here is dominated by aging-in-place remodeling: ADA-compliant bathrooms, zero-threshold showers, grab-bar blocking, widened doorways. The homes are predominantly single-story stucco tract builds from the 1960s through 1990s, and many are still occupied by original or second-generation senior owners. That means the original Toto fixtures installed when these houses were built are now at the exact age where tank gaskets, flappers, and electronic seats fail. In a Campbell Ranch-area ranch home off Sun City’s core, our tech opened a master bath for a tub-to-shower conversion and found the original Toto Carlyle one-piece leaking at the tank gasket onto a soft subfloor, with a corroded closet flange underneath — the kind of aging-fixture issue we see often in Toto in Good Hope and nearby communities. We reset that flange, set a new Toto Drake on a fresh wax ring, and finished the zero-threshold shower with grab-bar blocking approved through the HOA before we pulled the permit. That’s Sun City-specific work: HOA architectural review adds a step for any exterior change, and the aging fixtures inside are usually ready for replacement when we open the wall.
Toto Models & Products We Service in Sun City
We work on the Drake CST743 series two-piece toilets, the Eco Ultramax one-piece line, the Washlet S550e and C100-class electronic bidet seats, and the Carlyle and Promenade one-piece models common in 1990s Sun City builds. For parts, we use genuine Toto OEM fill valves, flappers, and gaskets wherever they still exist, and only vetted aftermarket options for discontinued internals. We won’t put a generic flapper in a G-Max tower. On electronics, if a Washlet board or heater is gone and out of warranty, we price the repair honestly against a new seat so you can make a sound choice. Toto in Quail Valley and Sun City homes is what we know, and we keep the common parts stocked locally for faster turnaround.
See the difference
Before
After
Before
After
Before
AfterToto Service Pricing in Sun City
What drives the cost is simple: a toilet swap is one line item, but a full tub-to-shower conversion with grab-bar blocking and HOA coordination is a bigger scope. Below are our market-calibrated price ranges for the Sun City area, so you know what to expect before you call. Every estimate includes a walk-through of the room, a look at the existing plumbing and subfloor, and a written line-item quote. Call (833) 467-7020 to schedule yours; estimates are free.
| Service | Price Range |
|---|---|
| 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 |
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
Serving Sun City, CA — Our Local Coverage Area
We’re based in the Sun City 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 Sun City
My Toto toilet keeps running and refilling on its own – what’s wrong?
In Sun City homes, that’s usually a hardened G-Max or Performance flapper from years of dry inland air, or a worn fill valve not shutting off fully. We replace it with a genuine Toto OEM part so the seal actually holds. Call (833) 467-7020 for a diagnosis; we’ll tell you over the phone whether it’s a quick flapper swap or something deeper.
Are you an authorized Toto dealer or warranty provider?
No. We’re an independent Toto service provider. Our experience comes from installing and servicing Toto fixtures across hundreds of Riverside County remodels, not from a manufacturer badge. If your fixture is still under Toto’s warranty, we’ll point you to the right channel, and we’re happy to handle the labor side where warranty parts are involved.
How long does a tub-to-shower conversion with a Toto toilet swap take in Sun City?
Most standard conversions in these single-story tract homes run three to five working days once HOA approval and permits clear, whether it’s Sun City or a Romoland Toto service call. HOA review for exterior changes like bathroom ventilation or window mods can add a week or two in Sun City. We handle that paperwork as part of the job.
Which Toto models do you service most often in Sun City?
The original Carlyle and Promenade one-piece toilets from 1980s and 1990s builds, plus the Drake two-piece and Washlet electronic seats that homeowners installed later. We carry OEM-compatible parts for all of them.
How much does a toilet replacement really cost when it’s part of a Sun City bathroom remodel?
The toilet itself is typically a few hundred dollars for a Toto Drake, but the remodel scope around it drives the total. Bathroom remodels in Sun City run $9,000 to $28,000 depending on whether you’re converting a tub to a shower, moving plumbing, or adding blocking for grab bars. Call (833) 467-7020 for an exact quote; written estimates are free.
Service Areas Near Sun City
We serve the full Sun City service area, including the 92585, 92586, and 92587 ZIP codes, and we regularly take on projects across the surrounding communities. That includes Bloomington, Muscoy, Fontana, Colton, San Bernardino, and Grand Terrace. We also provide Toto service in Apple Valley and Toto service in Yorba Linda for clients in those areas.
Book Your Toto Service in Sun City Today
If your Toto toilet is running, your Washlet is dead, or you’re planning a tub-to-shower conversion in Sun City, call Alder Contractors at (833) 467-7020 for a free estimate. Do it right the first time, the callback always costs more than the extra hour up front.
Written by Nelson Ibarra, Owner at Alder Contractors, serving Sun City and the Inland Empire since 1996.