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Toto Construction in Mountain View, CA | Ashford Contractors
We install and service Toto toilets, Washlets, and commercial flush valves throughout Mountain View, from the Eichler tracts south of El Camino to the newer infill near downtown. The difference in our Toto work here comes down to what we find behind the wall: decades-old galvanized supply lines and undersized closet flanges that turn a simple swap into something more involved. We’re an independent contractor, not a Toto-authorized shop, which means we recommend what actually works for your house. Call (877) 752-3868 for a straight answer and a free estimate.
Why Mountain View Residents Choose Us for Toto Service
Glen Mossier grew up on the Peninsula and has spent over two decades rebuilding bathrooms, kitchens, and whole homes from San Bruno to San Jose. He trained in construction technology at Skyline College, where he learned the mechanical and materials side of the trade the way it actually plays out on a job site, not just in a catalog. When we open up a 1960s bathroom in a Mountain View rancher, we know what we’re looking at because we’ve seen it hundreds of times.
We’re also deep in the Toto product line. Our crews have installed and serviced Toto Drake two-piece toilets, Ultramax II one-piece models, EcoPower flush valves, and Washlet S350e and S550e bidet seats across Mountain View service area ZIP codes 94039 through 94042. For Toto sales & service, we stock the OEM fill valves, flappers, and wax rings that keep these fixtures running the way Toto designed them. You get a team that knows the product and knows the houses.
Styles & brands we work with







Common Toto Construction Problems We Solve in Mountain View
- Fill and flush valve wear in older Drake toilets. Mountain View’s hard water leaves mineral scale on valve seats and flappers. Symptoms are usually a weak flush or a tank that keeps running. We replace worn components with OEM Toto parts rather than generic kits that change fill height and cycle time.
- Wax ring and flange failures at the closet bend. Postwar slab floors in Mountain View shift over time. When the slab settles, the flange drops or cracks, the wax ring loses its seal, and water seeps under the tile. By the time you see the stain, the subfloor often already needs repair.
- Washlet seat electronics corroding at the connector. Older Mountain View homes with ungrounded outlets are hard on Washlet control boards. Power surges and moisture at the connector cause intermittent function or total failure. We test the circuit before we condemn the seat, because sometimes the problem is the house, not the product.
- Supply-line and angle-stop leaks at the toilet base. Eichler-era galvanized pipe corrodes from the inside. Combined with seasonal temperature swings, the threaded connections at the angle stop start to weep. We replace corroded supply lines and stops when we reset a toilet, because a new fixture on a failing supply is a callback waiting to happen.
- Rocking or leaking toilets on original flanges. If your Toto rocks, the flange is usually the culprit, not the toilet. We bolt through into solid framing or replace the flange with a repair ring rated for the application, then reset the fixture square and level.
Toto Service in Mountain View: What Local Conditions Mean for Your Equipment
Mountain View’s pre-1950s and Eichler-era homes often still carry their original galvanized supply lines and undersized closet flanges. We walk into houses built in the 94040 ZIP, pull a Toto toilet for what should be a simple valve replacement, and find a 2-1/2-inch flange cracked at the ears and a supply line that’s down to a pinhole opening from decades of corrosion. A toilet swap in a newer Santa Clara County tract of the same square footage rarely surfaces this because the plumbing is copper or PEX and the flanges were cast to current standards. Here, the job frequently turns into a flange-and-supply upgrade once we open the floor. That’s not scope creep. It’s the difference between a repair that lasts and a repair that fails again in eighteen months. We plan for it in our estimates so you’re not surprised mid-project.
Toto Models & Products We Service in Mountain View
We service the full range of residential Toto product, including the Drake CST743 two-piece series, the Ultramax II MS604 one-piece line, EcoPower commercial flush valves, and Washlet S350e and S550e bidet seats. For critical seals and electronics, we use OEM Toto parts: fill valves, flappers, wax rings, and Washlet control boards. For non-proprietary connections like braided supply lines and angle stops, we use professional-grade aftermarket supplies. When a Toto fixture needs more than a valve or a gasket, we give you a straight repair-versus-replace comparison. Many 15-year-old Drakes are worth rebuilding. Early Washlets, with their discontinued boards and connectors, often are not.
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AfterToto Service Pricing in Mountain View
Here are the line items we see most often on Mountain View Toto projects. These are calibrated for this market, where labor rates and permit requirements track higher than the Bay Area average because of the city’s tight building division.
| Scope of Work | Typical Range in Mountain View |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
The final number depends on what we find when the fixture comes out: flange condition, subfloor rot, supply-line material, and whether the vent stack is up to current code. Our free estimate includes a site inspection, a written line-item bid, and an honest assessment of what needs doing now versus what can wait. Call (877) 752-3868 to schedule yours.
Serving Mountain View, CA — Our Local Coverage Area
We’re based in the Mountain View 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 Mountain View
It’s usually the flapper, but hard water in Mountain View coats both the flapper seat and the fill valve diaphragm. We test by shutting off the angle stop and watching the tank level. If the water drops, the flapper’s leaking. If the tank refills constantly but holds water, the fill valve’s worn. We replace whichever part failed with the OEM Toto component, not a generic kit. Call (877) 752-3868 if you’d rather we diagnose it in person.
Yes, if the toilet is a standard 12-inch rough-in with a nearby GFCI outlet. Eichler bathrooms often lack that outlet, and we won’t run a Washlet off an ungrounded circuit. We’ll add a dedicated GFCI line and a proper connector, then mount the Washlet to the existing bowl. The seat itself doesn’t care how old the toilet is. The electrical does.
The flange has usually failed, not the toilet. Mountain View’s slab floors settle and shift, which cracks the flange or drops it below the finish floor. The wax ring loses compression, and waste water escapes under the tile. We pull the toilet, assess the flange and subfloor, and rebuild what’s needed before resetting the fixture. Call (877) 752-3868 for an exact quote.
For seals, valves, and electronics, yes. We use OEM Toto fill valves, flappers, wax rings, and Washlet boards. For non-proprietary connections like supply lines and angle stops, we use professional-grade aftermarket components. That combination keeps the fixture true to Toto’s engineering without overpaying for parts that don’t affect performance.
The Drake CST743 two-piece and the Ultramax II MS604 one-piece both fit standard 12-inch rough-ins and compact footprints. For a small bath, the Ultramax II’s skirted base is easier to clean and saves a few inches visually. We spec the Drake more often in Eichler remodels where the original rough-in is tight and we want a proven workhorse. Either way, we’ll help you pick the right one for your space. Call (877) 752-3868 to talk through your bathroom layout.
Service Areas Near Mountain View
We run Toto service across the mid-Peninsula and into the South Bay. If you’re in Toto service in Noe Valley, we handle jobs there. For clients closer to the Mission, see Toto service in Mission District. We also cover Foster City, Redwood Shores, Belmont, San Mateo, San Carlos, and Highlands-Baywood Park from our Mountain View routes.
Book Your Toto Service in Mountain View Today
We service the entire Mountain View area, ZIP codes 94039, 94040, 94041, and 94042. Call (877) 752-3868 to schedule your free estimate. We’ll give you a straight assessment, a written line-item bid, and a plan that accounts for what’s actually behind your walls.
Written by Glen Mossier, Owner at Ashford Contractors, serving Mountain View and the greater Peninsula.