Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Toto Construction in San Francisco, CA | Mason Remodeling
We’re Mason Remodeling, an independent remodeling crew that installs and services Toto fixtures across San Francisco. We are not manufacturer-affiliated or an authorized Toto dealer, and that’s the point. Our Toto work here is shaped by what this city actually does to toilets and bath fixtures: salt-laden fog corroding Washlet control boards, pre-1950 cast-iron plumbing eating floor flanges, and tight Victorian bathrooms that punish a sloppy install. Call (803) 680-2547 for a free estimate, and you’ll get a written price before any work starts.
Why San Francisco Residents Choose Us for Toto Service
We’ve been handling Bathroom Remodeling in San Francisco and kitchens since 2004, and Toto fixtures show up in a large share of them. The Washlet-ready rough-ins in Marina District remodels, the low-profile Ultramax tanks squeezed into Sunset District powder rooms, the Aquia dual-flush toilets going into water-conscious Noe Valley renovations. We know what these fixtures are supposed to do here, and we know what happens when they don’t.
Isaac Pruett, our owner, grew up watching his finish-carpenter father check every piece of trim twice. That same check-twice habit applies to Toto installs. Our crew verifies every technician by name and photo before they reach your door. They arrive in clean marked uniforms and show a photo ID badge. Know who’s coming, know what it costs, know it’s backed up – everything else is just noise.
We also stock genuine Toto OEM fill valves, flush towers, and Washlet control boards for priority jobs in San Francisco. Where aftermarket parts meet or exceed OEM spec, we use them. We’ll tell you which is which.
Styles & brands we work with
Common Toto Construction Problems We Solve in San Francisco
- Washlet control board corrosion. San Francisco’s fog isn’t just a postcard. The marine layer pushes salt-laden moisture into older bathrooms with weak ventilation, and Washlet S550e and C5 control boards take the hit. We replace boards with genuine Toto OEM parts and check the bathroom’s venting so it doesn’t happen again in six months.
- Aquia dual-flush phantom flushing. The city’s older water mains run mineral-heavy. Those minerals build up on the dual-flush tower gasket in Toto Aquia toilets, which causes the seal to fail and the toilet to refill itself at random. We clean or replace the tower and the gasket, then set the flush calibration to match your building’s water pressure.
- Ultramax tank lid damage during tight remodels. Pre-1900 Victorians and Edwardians in San Francisco often have toilet alcoves that barely meet code clearance. One wrong move with a tool or a ladder, and the porcelain lid on a Toto Ultramax chips. We source replacement lids by model and serial, and we protect the fixture during the rest of the remodel.
- Drake wax ring and flange failures on cast-iron plumbing. Many San Francisco buildings still run original cast-iron soil stacks. The floor flange rusts through, the wax ring shifts, and water leaks onto the ceiling below. We pull the Toto Drake, replace the flange, set a new ring, and pressure-test the closet bend before closing the floor.
- Supply line and valve failures behind wall-hung Toto units. Wall-hung Totos in San Francisco condos and high-rises put all the plumbing behind the wall. When the carrier system or supply line fails, you need a crew that works clean and doesn’t open more wall than necessary. We repair and reset these without gutting the bathroom.
Toto Service in San Francisco: What Local Conditions Mean for Your Equipment
San Francisco’s Residential Water Meter Replacement Program and tiered water rates are pushing a lot of Toto owners to retire older 3.5-gallon toilets in favor of dual-flush or 1.28-gallon models. The savings are real, but the swap is rarely as simple as unbolting one toilet and setting another. In neighborhoods like the Mission, Glen Park, and Inner Sunset, pre-1950 plumbing often means the closet bend and floor flange are original cast iron and rusted beyond reuse. Our crews handle that hidden scope as part of the fixture install: we cut out the old flange, set a new one at the correct height for the finished floor, replace the closet bend if it’s cracked or bellied, and only then set the new Toto. Skipping that step is how you get a brand-new Toto Aquia leaking through your downstairs neighbor’s ceiling within a year.
Toto Models & Products We Service in San Francisco
We install, repair, and replace across the Toto lines that show up most often in San Francisco homes: the Washlet series (S550e, S500e, C5), the Drake series (CST744S, CST776), the one-piece Ultramax series, and the dual-flush Aquia series. For priority jobs, we carry genuine Toto OEM fill valves, flush towers, and Washlet control boards locally. Wax rings, supply lines, and flanges come from high-quality aftermarket lines we’ve used for years, chosen because they meet or exceed OEM spec. When a Toto fixture is 15 or more years old and a repair approaches half the cost of a new high-efficiency unit, we’ll show you both paths and let you decide. No pushing replacements. If you’re looking for broader Toto sales & service work, this is the page that explains how we approach the whole brand.
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AfterToto Service Pricing in San Francisco
Toto work in San Francisco sits inside broader bathroom and fixture pricing. Here’s what our typical bands look like:
| Service | Price Range |
|---|---|
| Bathroom Remodel | $10,620 – $33,040 |
| Small Bathroom Remodel | $5,900 – $14,160 |
| Walk-In Shower Installation | $5,310 – $14,160 |
| Bathroom Vanity Installation | $945 – $3,540 |
| Tub-to-Shower Conversion | $4,130 – $11,800 |
What drives the number: the age of your building’s plumbing, whether the flange needs replacement, whether the bathroom has proper ventilation for a Washlet control board, and the finish level of the surrounding tile and trim. Every estimate is free. We deliver a written price before any work begins, and that price does not change once the job starts unless the hidden scope changes and you approve it in writing. Call (803) 680-2547 to schedule a free estimate in San Francisco.
Serving San Francisco, CA - Our Local Coverage Area
We’re a San Francisco General Contractor based in the 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 Francisco
Yes. Many Victorians in neighborhoods like Haight-Ashbury and Duboce Triangle were wired decades before GFCI protection was required near wet fixtures, and the outlet usually isn’t where the Washlet needs it. We run a dedicated GFCI-protected circuit to the correct location behind or beside the toilet, sized for the Washlet’s draw, and we do it as part of the fixture install. Call (803) 680-2547 for an exact quote, and we’ll include the electrical work in the written price.
Almost always a repair, not a replacement. San Francisco’s mineral-heavy water shortens the life of the fill valve diaphragm and flapper, but the Drake’s porcelain and trapway are built to last. We replace the fill valve with genuine Toto OEM, clean or replace the flapper, and the toilet usually stops running the same visit. If the fixture is 15-plus years old, we’ll give you both the repair price and a replacement price and let you compare. Call (803) 680-2547 to schedule a service visit.
Yes, when the toilet qualifies under the city’s current rebate program and the install meets its requirements. A Toto Aquia or other 1.28-gallon dual-flush model is exactly the kind of high-efficiency fixture the city encourages, and many San Francisco homeowners combine the rebate with a broader bathroom remodel. We’ll spec the right model and install it to code so the rebate paperwork is clean. We don’t promise a rebate amount, because the city changes its program periodically. Call (803) 680-2547 and we’ll walk through what’s currently available for your situation.
We cut out the rusted flange, inspect the closet bend, replace any cracked or corroded section, set a new flange at the correct height, then set the new Toto and pressure-test the connection before closing the floor. This is standard scope for us in pre-1950 San Francisco housing stock, not a surprise add-on. The price for the flange and closet-bend work goes on the written estimate before we start, so you know it’s coming. Call (803) 680-2547 for a free estimate that includes this hidden scope.
We stock genuine Toto OEM Washlet control boards, remote assemblies, and fill valves for priority San Francisco jobs, which means most repairs happen without a weeks-long parts delay. If a specific board is backordered, we’ll tell you exactly when it’s expected and what your options are in the meantime. Call (803) 680-2547 with your model number and we’ll check local stock while you’re on the phone.
Service Areas Near San Francisco
Mason Remodeling serves San Francisco proper and surrounding communities, including Daly City, South San Francisco, Oakland, Berkeley, and San Rafael. For Toto work further out, see our Toto service in Fresno and Toto service in Sacramento pages. Our full coverage area is listed on the San Francisco service area page.
Book Your Toto Service in San Francisco Today
Call (803) 680-2547 to schedule your free Toto estimate in San Francisco. We’ll send a background-checked, uniformed technician with a photo ID badge, and you’ll have a written price before any work begins.
Written by Isaac Pruett, Owner at Mason Remodeling, serving San Francisco since 2004.
