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 Perris, CA | Square One Builders
Square One Builders provides independent Toto service and installation across Perris, from two-piece Drakes in May Ranch to full Washlet-equipped custom bathrooms in 92571, and also offers Toto service in Sun City. We stock genuine Toto OEM fill valves, flappers, and Washlet solenoid assemblies so repairs don’t stall waiting on parts. What makes our Toto work different here is that we plan every fixture placement around Perris’s one-of-a-kind excavation reality: buried irrigation lines and old well casings under former farmland. Call (877) 688-9930 if your Toto toilet runs, leaks, or flushes weak. We’ll schedule a free estimate around your timeline, not ours.

Why Perris Residents Choose Us for Toto Service
We’ve installed and serviced Toto toilets, Washlets, and faucets in hundreds of Perris remodels and new-build punch lists, from builder-grade entries to high-end bidet seats in custom homes. Our crews know Toto’s proprietary fill valves, tower flush systems, and electronic bidet components inside out. We don’t guess at a repair. We diagnose, then source genuine Toto parts rather than one-size-fits-all substitutes that never seat right. Brent Calloway, our owner and general contractor, has spent the better part of three decades on home builds and remodels across Riverside and Orange counties, including Mead Valley Toto service. His rule is simple: don’t waste a client’s time on a part that’ll fail again in six months. That instinct drives how every Toto call goes in Perris.
We’re an independent Toto service provider. Not manufacturer-affiliated, not an authorized dealer. That means we recommend what’s actually right for your bathroom, not what a brand program tells us to push. When a Toto toilet or Washlet is repairable with OEM parts, we repair it. When the porcelain’s cracked or the electronics are obsolete, we tell you straight and install a current Toto model that fits the same footprint.
Styles & brands we work with







Common Toto Construction Problems We Solve in Perris
- Weak flushes and phantom running from scaled rim jets. Perris water is hard, and mineral-heavy. Toto’s G-Max and Tornado flush rim jets scale up faster here than in coastal cities, which produces weak flushes and slow tank refills homeowners mistake for a worn flapper. We descale the rim jets and replace the fill valve with the genuine Toto part.
- Warped Washlet hinges and dried-out solenoid seals. Summer heat cycling inside tract home bathrooms, especially in 92571 and 92570, takes a toll on Toto Washlet seat hinges and inlet solenoid seals. The result is slow leaks under the seat and intermittent spray. We replace seals with OEM solenoid assemblies, not generic silicon.
- Proprietary fill valves and tower assemblies wearing out. Toto’s dual-flush tower assemblies and proprietary fill valves wear differently than standard Fluidmaster-style valves. Generic replacements often don’t seat correctly in the unique Toto tank geometry. We keep the correct Toto OEM components on our trucks for Perris calls.
- Dust-clogged faucet aerators and shower trim. Santa Ana wind events push fine dust through screens and into outdoor Toto faucet aerators and shower trim flow restrictors. Reduced pressure at the fixture is almost always a clogged restrictor, not a supply line problem. We clean or replace them during the same visit.
- Excavation surprises during bathroom additions. When a Perris homeowner wants to relocate a Toto toilet or add a bathroom, we account for what’s underground before cutting slab. We’ve hit old irrigation lines and well casings often enough in 92571 that we now scope first, then drain-line layout follows.
Toto Service in Perris: What Local Conditions Mean for Your Equipment
There’s a piece of Perris history hiding under a lot of bathroom floors. This city expanded fast over former farmland, and that means contractors regularly hit buried agricultural infrastructure while excavating for new foundations and utilities. Old irrigation lines, abandoned wells, debris from torn-down pump houses. We’ve hit them in 92571 more times than we can count. What that means for a Toto fixture relocation is simple: before we saw-cut slab for a new drain line, we check what’s below. A toilet that’s set on a properly routed, code-passing drain line outlasts one slapped over an old irrigation ditch that settles in three years. Plan first, then set the fixture. Start from square one, build it right.
Toto Models & Products We Service in Perris
We service the full Toto line you’re likely to find in Perris homes: Eco Drake and Drake II two-piece toilets, Ultramax II and Vespin II one-piece models, Nexus one-piece toilets, and Washlet C5 and S550e electronic bidet seats. We also handle Toto faucets and shower trim. Our parts stance is consistent across all of it: OEM fill valves, flappers, tower seals, and solenoid assemblies because aftermarket clones fail to match Toto’s specifications and cause repeat callbacks. That’s not speculation. We’ve watched homeowners replace a Toto flapper twice with a generic part that never seated, then call us. We fix it once with the right part and it holds. If you’re planning a full bathroom remodel, tub-to-shower conversion, or vanity installation that includes new Toto fixtures, we coordinate the fixture trade with the rest of the construction scope, so the drain, supply, and finish work all line up under one contractor.
See the difference
Before
After
Before
After
Before
AfterToto Service Pricing in Perris
Here’s what Toto-related work typically runs in Perris, depending on scope. These are the ranges we quote across the city, from downtown to May Ranch and the newer tracts along the I-215 corridor.
| Service | Typical Range |
|---|---|
| Full Bathroom Remodeling | $9,000 – $28,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
What drives cost is accessing the drain lines, whether underground conditions require extra trenching, and the specific Toto model you choose. A free estimate includes a line-item quote so you see exactly what you’re paying for before any work starts. Call (877) 688-9930 to schedule yours.
Serving Perris, CA — Our Local Coverage Area
We’re based in the Perris area and know this community well, and we also provide Toto service in Good Hope. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in Perris
Yes. Mineral scale builds on the inlet solenoid seals and spray nozzles, which causes slow leaks and weak spray pressure. We descale and replace the solenoid assembly with genuine Toto OEM parts. Call (877) 688-9930 if your seat is leaking or spraying unevenly.
You can, but we don’t recommend it. Toto’s tank geometry and flush tower design work with its own fill valve. Generic Fluidmaster-style valves often don’t seat correctly and can cause running or weak flushes. We use genuine Toto fill valves on every repair.
Summer heat cycling in Perris tract homes warps flappers and dries out seals faster. Combined with hard water scale on the fill valve, you get phantom running. We fix it with an OEM flapper and fill valve. Call (877) 688-9930 for an exact diagnosis.
Yes. We spec and install Toto toilets, Washlets, and faucets as part of full bathroom remodels, tub-to-shower conversions, and vanity installations. We handle the drain lines, supply lines, and finish work under one contract. See our Toto sales & service page for the full fixture range we carry.
We see mostly Eco Drake and Drake II two-piece toilets in 1990s and 2000s tract builds, with Ultramax II and Vespin II in custom homes and higher-end spec houses. Washlet C5 and S550e seats are increasingly common in master baths across 92571. If you’re not sure which model you have, we can identify it in minutes. Call (877) 688-9930 to schedule a free estimate.
Service Areas Near Perris
Square One Builders serves Perris and the surrounding Riverside County communities. We run Toto service calls into Perris service area neighborhoods including May Ranch, the downtown core, and the newer tracts along the I-215 corridor. We also cover Toto service in Moreno Valley to the north and Toto service in Colton across the county line. Corona, Norco, and La Verne are within our regular route as well.
Book Your Toto Service in Perris Today
If your Toto toilet runs, your Washlet leaks, or you’re planning a bathroom remodel in Perris or need Toto service in Romoland, call (877) 688-9930. We’ll schedule a free estimate, show you line-item pricing, and get the right Toto parts on the truck before we arrive.
Written by Brent Calloway, Owner at Square One Builders, serving Perris since 2008.