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 San Mateo, CA | Seaside Contractors
We’re an independent Toto service provider handling installation, repair, and full bathroom remodeling across San Mateo. If you’re planning a remodel that includes Toto fixtures, or your existing Drake, Aquia, or Washlet is acting up, call (833) 589-8103 and we’ll take a look. What sets our San Mateo work apart is simple: we understand both Toto engineering and the Peninsula’s mid-century housing stock, which means we diagnose the whole bathroom, not just the fixture. From Toto sales & service to full remodels, we manage the job end to end.
Why San Mateo Residents Choose Us for Toto Service
Most San Mateo bathrooms were framed in the 1940s through 1960s, and their rough-ins were never designed for modern one-piece Toto toilets or Washlet bidet seats. We’ve pulled enough Toto fixtures out of tight mid-century bathrooms to know that clearance, drain location, and flange height drive most install failures. That experience, not a manufacturer badge, is what lets us get the job right the first time. Glen Sorrento grew up in Foster City and studied building construction technology at College of San Mateo, so he’s been watching Peninsula homes get built and rebuilt his whole life, giving him deep familiarity with Foster City Toto service needs. That local perspective matters when we’re re-roughing a Toto in a bathroom where the floor has settled half an inch over fifty years. You’re getting a general contractor who can also spec the rest of the remodel, not a specialty sub who only touches toilets.
Styles & brands we work with
Common Toto Construction Problems We Solve in San Mateo
- Weak or short flushes on Drake and Ultramax models. San Mateo’s municipal water runs hard, and scale builds up inside the fill valve and tank over time. We replace the worn OEM fill valve and flush valve, then check the rim jets to make sure the bowl’s actually clearing. A weak flush usually isn’t the Toto, it’s the water chemistry.
- Toto toilet rocking at the base. In 1940s – 1960s tract bathrooms, the subfloor and tile have shifted enough that the original wax ring and flange fail. A rocking toilet leaks at the base and quietly rots the floor. We reset the toilet on a new wax ring, replace the flange if it’s corroded, and shim it properly so it sits solid.
- Washlet electrical and control-board failures. Marine-layer humidity and cold, damp Peninsula bathrooms are hard on bidet seat electronics, especially when the GFCI outlet is positioned poorly or missing entirely. We diagnose the control board honestly and quote OEM or Toto-approved replacements, never knockoff electronics.
- Aquia dual-flush problems. Sediment from San Mateo’s harder water clogs the smaller flush orifice in the Aquia’s flush tower, so the low flush stops working and you’re stuck using the high flush for everything. We clean or replace the flush tower and reset the flush volume to factory spec.
- Supply line and shutoff valve failures. Older San Mateo homes often still have original angle stops that seize up or corrode. Before we touch a Toto fixture, we check the shutoff and supply line, because a seized valve turns a simple swap into a flooded bathroom.
Toto Service in San Mateo: What Local Conditions Mean for Your Equipment
Here’s a local insight that shapes nearly every Toto job we do in San Mateo: the dominant construction project here isn’t new construction, it’s a second-story addition or rear extension on a small 1940s – 1960s stucco lot. High land values mean homeowners maximize square footage rather than start fresh. So when a San Mateo homeowner wants a Toto Aquia or Ultramax, they usually aren’t swapping a toilet in an unchanged bathroom. They’re re-plumbing a bathroom within an existing, undersized footprint, and we routinely have to reframe a floor or move a drain to make the Toto fit correctly. In neighborhoods like Baywood and Laurelwood, where hillside homes need engineered foundations and retaining walls, the bathroom floor isn’t always level or plumb, which is why our Highlands-Baywood Park Toto service includes full structural assessment. We’ve done this enough times to know that a Toto install in San Mateo is rarely a simple swap; it’s a construction project that happens to end with a toilet.
We saw exactly this on a second-story addition job in the Baywood hills. The owner’s Drake II was rocking on a corroded flange, and there was a soft spot in the subfloor where winter rain had crept in through a bad flashing detail. We cut out the rotted flooring, rebuilt the flange at the correct height, reset the Toto on a new wax ring with a reinforced supply line, then corrected the exterior flashing above so the repair wouldn’t come back next rainy season. That’s the difference between a plumber’s fix and a contractor’s fix.
Toto Models & Products We Service in San Mateo
We work on the full Toto residential lineup across San Mateo: Drake and Drake II two-piece tanks, the one-piece Ultramax, the Aquia dual-flush, and the entire Washlet and Washlet+ bidet seat line, including integrated toilets. Our parts policy is firm: we install genuine Toto OEM fill valves, flappers, flush towers, and gaskets, because aftermarket copies don’t fit the tank right and change the flush volume. For Washlet electronics, we quote OEM or Toto-approved replacements only. We keep common OEM parts stocked locally for fast San Mateo turnaround; for model-specific electronic components, we order them in and schedule the follow-up visit before we leave the first one. If your Toto’s porcelain is intact, we repair. If the bowl, trapway, or base is cracked, or the rough-in is wrong for the room, we’ll tell you plainly and recommend replacement.
See the difference
Before
After
Before
After
Before
AfterToto Service Pricing in San Mateo
Toto service pricing in San Mateo depends on what the job actually is: a valve swap, a reset with new ring and flange, or a full bathroom remodel that includes moving drains and reframing the floor. Here are the same numbers we give on the phone:
| Service | Price 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 |
A simple Toto valve or flush-tower repair usually runs a few hundred dollars including parts and labor. What drives the cost up is the bathroom around the fixture: subfloor repair, flange replacement, moving a drain, or correcting a rough-in. Our free estimate covers the inspection, a written line item breakdown, and a straight answer about whether you should repair or replace. Call (833) 589-8103 and we’ll schedule it. Let’s figure out what the job actually needs, then we’ll talk materials.
Serving San Mateo, CA — Our Local Coverage Area
We’re based in the San Mateo 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 San Mateo
Yes. In fact, it’s one of the most common requests we handle from mid-century San Mateo homes. We run a new GFCI-protected circuit and mount the outlet within reach of the Washlet cord, which is the bigger cost driver on these installs, not the seat itself. In old bathrooms, there’s often no outlet anywhere near the toilet, so we’re fishing wire through stucco and lathe-and-plaster. We quote the electrical work as part of the job and always follow Peninsula code. Call (833) 589-8103 for an exact quote on your bathroom’s layout.
We install genuine Toto OEM fill valves, flappers, flush towers, and gaskets on Toto toilets, end of story. Aftermarket copies from the big-box stores don’t seat correctly in Toto tanks and they change the flush volume. For Washlet electronics, we qualify OEM or Toto-approved replacements only.
Most standalone Toto repairs, like a fill valve or flush tower replacement, take under two hours on site. A reset with a new wax ring and flange repair typically takes half a day unless we find subfloor damage. Full remodels are a different timeline: a bathroom remodel in San Mateo usually runs two to five weeks depending on scope. We’ll give you a written schedule before work starts, and we’ll tell you if the job is one visit or several.
We service the full residential lineup: Drake and Drake II (two-piece and one-piece), Ultramax one-piece, Aquia dual-flush, and the Washlet and Washlet+ bidet seat family, including integrated toilets. If you’ve got an older Toto model not on that list, we’ll still take a look and tell you straight if it’s worth repairing.
In San Mateo, a small bathroom remodel with a Toto toilet starts around $5,000 and runs up to $12,000, while a full bathroom remodel ranges $9,000 to $28,000. Your price depends on whether we’re moving drains, reframing floors, adding a new circuit for a Washlet, or converting a tub to a walk-in shower. Call (833) 589-8103 and we’ll give you a free, written estimate, no obligation.
Service Areas Near San Mateo
We serve San Mateo and the surrounding Peninsula communities, including San Mateo service area coverage across 94401, 94402, 94404, and 94497. Our Toto work also extends to the coastside: Toto service in El Granada and Toto service in Hillsborough are both regular stops for our crews.
Book Your Toto Service in San Mateo Today
Call (833) 589-8103 to schedule your free estimate. We’ll assess the Toto fixture and the bathroom around it, then give you a written scope of work. Same-day or next-day visits are usually available for standalone repairs in San Mateo.
Written by Glen Sorrento, Owner at Seaside Contractors, serving San Mateo and the Peninsula.