







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Toto Construction in Santa Rosa, CA | Elmstead Remodeling
We install, repair, and replace Toto toilets, Washlets, and bathroom fixtures across Santa Rosa. Elmstead Remodeling is an independent Toto service provider, not manufacturer-affiliated, and the one thing that makes our Toto work here different is that we’ve spent nearly two decades learning how Santa Rosa’s hard water, Diablo wind season, and post-Tubbs Fire rebuilding patterns affect Toto equipment specifically. From Coffey Park rebuilds to pre-fire westside tract homes, we diagnose brand-specific problems instead of swapping parts blindly. Call (949) 850-9896 for a written estimate before any work starts.
Why Santa Rosa Residents Choose Us for Toto Service

Most plumbers can replace a flapper. Fewer can tell you why a Toto Drake’s fill valve is failing in a 1960s westside home but not in a 2019 Coffey Park rebuild, or why a Washlet S550e keeps tripping a GFCI on one street but not the next. That’s the work we do every week. Graham Stein, our owner, learned framing and finish work at Los Angeles Trade-Technical College, where instructors expected you to read a set of plans before you picked up a tool, and that habit applies to Toto fixtures too: we read the installation specs, check the water pressure, and verify the electrical before we touch anything.
We’re an independent remodeling contractor with deep Toto sales & service experience. That independence matters because we’re not obligated to push a particular product line. When a genuine Toto OEM fill valve or gasket is available, we use it. When an older Washlet’s electronics are discontinued, we give you an honest repair-versus-replace comparison using real dollar ranges, not a sales pitch. Our crew is background-checked and uniformed, shoe covers go on at the door, and a written price is in your hand before the first tool comes out of the truck.
Styles & brands we work with







Common Toto Construction Problems We Solve in Santa Rosa
- Phantom flushes and running toilets in Toto Drake models. Santa Rosa’s moderately hard water deposits minerals on fill valve seals and flappers, especially in pre-1990 westside homes with older plumbing. The result is a toilet that refills itself at 2 a.m. and a water bill that creeps up month over month. We replace the valve with genuine Toto OEM parts, not generic aftermarket pieces that wear out in a year.
- Washlet control boards and seat sensors failing after power surges. Fountaingrove and Coffey Park were rebuilt fast after 2017, and we’ve seen grounding quirks in new electrical panels that older neighborhoods don’t have. A loose neutral or a mineral-clogged water inlet filter can make a Washlet S550e behave erratically, losing settings or tripping the GFCI. We check both before recommending a new board.
- Tank-to-bowl gasket leaks on Toto Ultramax one-piece models. September through November brings Diablo wind events that drop relative humidity sharply in a matter of hours. That rapid swing stresses the ceramic-to-plastic seals on one-piece toilets. We replace the gasket and re-torque the tank bolts to Toto spec, which is tighter than most handymen assume.
- Weak flushes on Toto Vespin II and Carolina models. The E-max flushing system’s piston and flapper degrade faster in homes on well water or older municipal lines near the Santa Rosa Plain. If the flush feels soft or the bowl doesn’t clear completely, it’s usually the piston seal, and it’s usually a 45-minute fix with the right OEM part in hand.
- Washlet installation on walls that weren’t built for it. Some Coffey Park rebuilds have new plumbing rough-ins mixed with original lines, and the wall behind the toilet isn’t always framed to carry a Washlet’s weight and electrical requirements. We verify water-supply line sizing and electrical grounding before mounting anything, because redoing a botched Washlet install costs more than doing it right first.
Toto Service in Santa Rosa: What Local Conditions Mean for Your Equipment
Coffey Park is the clearest example of why Toto work in Santa Rosa isn’t the same as Toto work in Petaluma or Healdsburg. After the 2017 Tubbs Fire destroyed roughly 5,300 structures, many lots in that neighborhood underwent DTSC-overseen debris removal and soil testing for ash-borne heavy metals and asbestos. Excavation on some parcels can still trigger residual environmental review steps, and the rebuilding introduced a mix of new and original plumbing rough-ins. What this means for a Toto owner is practical: before we mount a Washlet on a rebuilt wall, we frequently need to verify electrical grounding and water-supply line sizing. We’ve seen rebuilt subpanels with loose neutrals that would have fried a Washlet’s control board within a year. Our tech was called to a 2019 rebuild on Coffey Park’s Hopper Avenue where the homeowner’s Toto Washlet S550e kept tripping the GFCI outlet. The issue turned out to be a loose neutral in the new subpanel combined with a mineral-clogged inlet screen. After cleaning the filter and tightening the connection, the unit worked perfectly. We also replaced the fill valve in their Toto Drake with a genuine OEM part, resolving a phantom flush that had been running up their water bill. That’s the kind of local knowledge you only get from working block to block in this city.
Toto Models & Products We Service in Santa Rosa
We work on the full range of Toto fixtures that Santa Rosa homes actually have: Drake and Drake II two-piece toilets, Eco Drake water-saving models, Ultramax and Ultramax II one-piece toilets, Vespin II, Carolina, and Guinevere decorative lines, plus Washlet electronic bidet seats from the S550e, C5, and similar series. Our parts approach is straightforward: we source genuine Toto OEM fill valves, flappers, gaskets, and Washlet electronic components whenever they’re available, because aftermarket parts often miss Toto’s tolerances and can shorten the life of an otherwise solid fixture. We keep common OEM parts stocked locally for faster turnaround across Santa Rosa, which means fewer second trips and less time with a toilet out of service. For older Toto models with discontinued electronics, we walk you through a repair-versus-replace comparison using real Bathroom Remodeling - Santa Rosa pricing so you can decide with your eyes open.
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AfterToto Service Pricing in Santa Rosa

Here’s what you can expect to pay in Santa Rosa, with real ranges rather than vague “call for pricing” answers:
| Service | Typical Range |
|---|---|
| Bathroom Remodel | $9000 – $28000 |
| Walk-In Shower Installation | $4500 – $12000 |
| Tub-to-Shower Conversion | $3500 – $10000 |
| Shower Replacement | $3000 – $8500 |
| Bathroom Vanity Installation | $800 – $3000 |
What drives the final number is the condition of the existing rough-in, whether electrical work is needed for a Washlet, and which Toto fixture you choose. A free estimate from us includes a written line-item quote before any work starts. The written scope is the promise – if it is not on the paper, we have not agreed to it yet. Call (949) 850-9896 to schedule yours.
Serving Santa Rosa, CA - Our Local Coverage Area
We’re based in the Santa Rosa 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 Santa Rosa
A Washlet that loses its settings after a power outage usually has a failing memory capacitor on the control board, but in Santa Rosa we also check for the grounding issues common in post-2017 rebuilds. A loose neutral in a new subpanel can cause the same symptom. We’ll test the outlet and the inlet screen first, then replace the board if it’s actually needed. Call (949) 850-9896 and we’ll diagnose it properly.
In most Santa Rosa homes, yes. We need to verify the water-supply line is the right size and that there’s a GFCI-protected outlet within reach of the seat’s cord. In Coffey Park, where some rebuilt walls weren’t framed for the added weight and electrical load, we may need to add blocking or run a dedicated circuit first. We’ll tell you exactly what’s required before we start.
On Ultramax one-piece models, a running toilet is almost always the fill valve seal or the flapper wearing out due to Santa Rosa’s hard water. Mineral deposits prevent a clean seal, and the tank slowly refills all day. We replace the worn part with a genuine Toto OEM component and calibrate the fill level, which usually ends the problem for good. For an exact quote, call (949) 850-9896.
Yes. We’ve worked on many Coffey Park homes since the rebuild, and we’re familiar with the DTSC-overseen soil testing and residual environmental review steps that can come up during excavation. For most Toto repairs, no excavation is needed, but if we’re installing a new line or moving a rough-in, we’ll flag the review requirements before we dig. Call (949) 850-9896 to schedule a free estimate.
If it’s a Drake or Ultramax from the last 12 years, repair is usually the better call: a new OEM fill valve or gasket costs a fraction of a full replacement. If the porcelain is cracked, the washdown is chronically weak, or the model predates current water-saving standards, replacing with a new Drake II or Eco Drake makes more sense long-term. We’ll give you the repair cost and the replacement cost side by side, then you decide. Call (949) 850-9896 for an estimate.
Service Areas Near Santa Rosa
Our crew works throughout Santa Rosa and the surrounding North Bay, including Petaluma, Rohnert Park, Windsor, Healdsburg, and Sebastopol. For Toto service further south, see our Toto service in Rancho Cucamonga page. For coastal San Diego County coverage, visit Toto service in Oceanside. Our full coverage area is listed on the Santa Rosa service area page.
Book Your Toto Service in Santa Rosa Today
The fastest way to get a written price is to call (949) 850-9896. A live person answers, day or night, and we’ll schedule your free estimate at a time that works for your family. Whether it’s a phantom flush in a westside Drake or a Washlet install in a Coffey Park rebuild, we’ll name the problem and the exact fix before any work begins.
Written by Graham Stein, Owner at Elmstead Remodeling, a Santa Rosa General Contractor serving the area since 2005.












