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
Why San Bruno Homeowners Choose Toto Construction
We provide independent Toto construction, repair, and remodeling service across San Bruno, from a full bathroom remodel built around a Toto Drake to a Washlet seat that’s stopped spraying on a hillside home west of El Camino Real. For homeowners nearby, we also offer San Bruno Toto service with the same expertise. Our crew has set, reset, and rebuilt hundreds of Toto toilets and washlets across San Mateo County, so we know the brand’s specific plumbing quirks, from the G-Max gravity flush to the Washlet’s electrical and water-feed requirements, better than any general handyman. San Bruno Construction is an independent Toto service and remodeling provider, not affiliated with or authorized by Toto, and we service every brand alongside it. Need Toto work done right in San Bruno? Call (866) 472-1908 for a free estimate.
Why Trust San Bruno Construction for Your Toto Construction?
Toto builds precise fixtures. That precision cuts both ways: when a Toto toilet or Washlet runs right, it runs for years. When something drifts out of spec, whether it’s a fill valve wearing down or a Washlet inlet filter packed with hard-water scale, the fix needs a contractor who knows the difference between a genuine Toto part and whatever the supply house has on the shelf.
Noel Carvalho, our owner, grew up off El Camino Real in San Bruno and trained in construction technology at Skyline College here in town, where he learned to read plans, understand load paths, and think through a project before a single tool comes out of the truck. Over the past two-plus decades he’s run residential projects across San Mateo County, framing additions, pulling permits at City Hall on San Mateo Avenue, and finishing bathrooms where the tile work actually lines up. His daughter was born right here in San Bruno, which is reason enough to care whether the work holds up twenty years from now. That’s the standard we bring to every Toto fixture we touch. Good construction doesn’t announce itself, it just works, year after year.
We stock genuine Toto fill valves, flappers, and Washlet filters where fit and warranty matter, and we use quality aftermarket wax rings, supply lines, and flanges where OEM adds no value. We work warranty-safe. If a Toto component is still under the manufacturer’s coverage, we’ll tell you before we touch it, because the last thing a homeowner needs is an avoidable repair that costs them a warranty claim.
Styles & brands we work with







Common Toto Construction Problems We Fix in San Bruno
- Washlet bidet seats failing from mineral-heavy water. The S500e, C5, and K300 all share the same vulnerability: a fine inlet filter that clogs with hard-water scale, and nozzles that build up mineral deposits until spray pressure drops to nothing. On the Peninsula, where water runs mineral-heavy, a Washlet that stops spraying is usually a scale problem, not a dead motor. We descale, replace the filter, and re-test before recommending anything more expensive.
- Fill and flush valve wear on Drake and Ultramax II tanks. The Drake’s G-Max flush system is reliable, but the fill valve and flush valve wear out over time. Symptoms include ghost-flushing, a weak flush, or a tank that runs constantly. We rebuild with genuine Toto fill and flush assemblies rather than slapping in a universal part that fits poorly and fails early.
- Wax ring and flange seal leaks on older Toto installs. When a closet flange sits below the finished tile, or the toilet rocks even slightly, the wax ring loses its seal and you get the slow leak that rots subfloor over months. We reset Toto toilets on new rings, shim the base solid, and correct the flange height when it’s off, which prevents the same leak from coming back.
- Cracked or leaking one-piece bowls on Aquia and Ultramax models. One-piece designs look clean, but years of thermal cycling, especially in San Bruno’s fog-cooled, damp bathrooms, can stress the ceramic. A hairline crack near the trap or supply line can leak slowly for weeks before anyone notices. We inspect, confirm the source, and give you an honest repair-or-replace call based on the crack location and the fixture’s age.
- Supply-line and fill-valve failures after years of damp air. San Bruno’s persistent summer fog and winter rain keep interior humidity high. Brass and rubber components under a toilet tank age faster in that environment. If your supply line weeps at the shutoff or the fill valve seat has hardened and won’t shut off fully, we replace them before a small drip becomes a floor repair.
Toto Parts & Our Repair-vs-Replace Approach
OEM parts matter on Toto fixtures in specific spots. The fill valve and flapper inside a Drake or Ultramax II tank are engineered to exact tolerances, and aftermarket versions often seat slightly off, which means the ghost-flushing comes back in three months. Same with Washlet inlet filters, a generic filter can starve the pump or let scale through. We stock genuine Toto parts for those applications.
But we won’t oversell OEM where it adds nothing. A wax ring is a wax ring, and a braided supply line from a quality manufacturer does the same job as the Toto-branded one for less money. Flanges, shims, closet bolts, those are commodity parts, and we use good ones without marking up the brand name.
When a Washlet’s electronic board or pump has failed, we give a straight repair-vs-replace call. We’ll tell you the part cost, the labor to install it, and what a comparable new seat runs, and let you decide. No pushing a full toilet replacement because it’s easier for us. If the job is worth repairing, we say so. Call (866) 472-1908 and we’ll assess it honestly.
Our Toto Service Process – Step by Step
- 1
Diagnosis. We start by listening and looking. Ghost-flushing, weak flush, a Washlet that won’t spray, each symptom points to a specific cause. We test water pressure at the supply, inspect the fill valve, check the flush valve seal, and on Washlets, pull the inlet filter and run the cleaning cycle.
- 2
Repair or install. Once we’ve identified the problem, we use genuine Toto parts where they matter. For a remodel, we set the rough-in to match your Toto model’s spec, whether it’s a Drake two-piece at 12 inches or an Ultramax II one-piece that needs precise flange alignment.
- 3
Test. We cycle every flush, check for leaks at the supply, base, and tank, and on Washlets, run the full wash and dry cycle to confirm pressure and heat are right. We look for the slow drip that shows up ten minutes later, not just the obvious one.
- 4
Warranty and follow-up. We stand behind our workmanship and document what was done, what parts went in, and what to watch for. If a genuine Toto part fails during the manufacturer’s coverage window, we’ll point you to the warranty process before charging for a re-repair.
See the difference
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AfterToto Products We Service & Install in San Bruno
We work on the Toto models most common in San Bruno homes: the Drake two-piece gravity toilets in CST743 and CST746 series, the Ultramax II one-piece, the Aquia dual-flush, and the Washlet and WASHLET+ electronic bidet seats including the S500e, C5, and K300. We also provide Toto service in Millbrae for these same models. For remodels, we build bathrooms around these fixtures, matching rough-in, water supply, and electrical placement for the Washlet’s requirements. We stock common genuine Toto fill valves, flappers, and Washlet filters locally so turnaround is fast on repair calls, and we order anything else from our supply network, usually within a day or two.
We Also Service These Brands
San Bruno Construction is a full-scope residential general contractor, which means Toto is one piece of a much bigger picture. We also work with KraftMaid and Wellborn cabinetry, Cambria, Silestone, and Caesarstone countertops, and Kohler plumbing fixtures alongside Toto. If you’re remodeling a bathroom in San Bruno, we can coordinate the toilet, the vanity, the shower, and the tile under one contract, so you’re not chasing three vendors on your own.
FAQs – Toto Construction Service in San Bruno
Yes, we can. We’ll disconnect the Washlet, protect it during demo and tile work, and reinstall it once the new bathroom takes shape. We verify the electrical outlet location and water supply still meet the Washlet’s requirements before everything closes up. If the seat is older and showing scale damage, we’ll give you a straight take on whether it’s worth reinstalling. Call (866) 472-1908 to talk through your specific layout.
Almost always a repair. The Drake’s G-Max flush system is built to be rebuilt. A running tank or ghost-flush usually comes down to a worn fill valve or a failing flush valve seal, both replaceable with genuine Toto parts for a fraction of a new toilet’s cost. Replacement only makes sense if the bowl itself is cracked or the porcelain is worn beyond resurfacing.
The Ultramax II uses a standard 12-inch rough-in, but one-piece toilets are less forgiving than two-piece models because the pedestal is heavier and the footprint is tighter. The closet flange needs to sit at the right height relative to finished tile, and the base has to be shimmed dead level. If the flange is off, the toilet rocks, the wax ring fails, and you get the slow leak. We correct flange height and leveling as part of the install, which is why a Toto one-piece goes in clean the first time.
Yes, and it’s the most common Washlet failure we see in San Bruno homes and in Toto in South San Francisco properties too. Mineral-heavy water on the Peninsula clogs the inlet filter and scales the spray nozzles over time. The seat still powers on, but spray pressure drops to a trickle, or the water comes out uneven. Regular descaling and filter replacement keeps a Washlet running for years. When one stops working, call us before replacing it, many of these are a filter and a descale, not a dead seat. Call (866) 472-1908 to schedule service.
Yes, we design bathroom remodels in San Bruno around the existing Toto footprint when that’s the smart move. We trim vanity depth to preserve clearance, shift shower framing to avoid crowding the toilet, and keep the rough-in where it is so your existing fixture stays put. This is the kind of coordination that’s easy to miss when a cabinet guy and a shower installer never talk to each other. Under one contract, it just works.
Pricing depends on scope. Here are the ranges we typically see for the bathroom work that involves Toto fixtures in San Bruno:
| Project | Typical Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
Call (866) 472-1908 for an exact quote on your project. Estimates are free.
Book Your Toto Service in San Bruno, CA
Whether your Toto Drake is ghost-flushing at 2 a.m., your Washlet stopped spraying, or you’re planning a full bathroom remodel in San Bruno around Toto fixtures, we’re ready to take the call. We also handle Toto repair in Pacifica with the same commitment to quality. One contractor, every phase, from the toilet rough-in to the shower tile to the vanity. Call (866) 472-1908 to schedule your free estimate.
Written by Noel Carvalho, Owner at San Bruno Construction, serving San Bruno since day one.