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Toto Bathroom Remodeling: The San Antonio Owner’s Guide
A full Toto bathroom remodel in San Antonio typically runs $9,000 to $28,000, depending on whether you’re refreshing a powder room or reworking a master bath down to the studs. We carry Toto-compatible parts on our trucks and install Toto fixtures in remodels across San Antonio every week, which means you’re not waiting on a specialty house to ship something from out of state. Most owners call us after a Toto part fails in a way that isn’t a simple swap: a skirted toilet hiding a cracked flange, a shower valve with Toto’s proprietary rough-in dimensions, or a washlet seat that stopped heating a year past its expected lifespan.
Here’s the reality we see on San Antonio job sites. Toto builds excellent fixtures, but the bathroom around them ages faster than the fixture does. Hard water from the Edwards Aquifer leaves mineral scale inside Toto fill valves and shower cartridges faster than the national average. The part that fails is usually not the Toto component itself. It’s what the original installer did, or didn’t do, behind the wall and under the floor. That’s where our work starts.
Which Toto Models This Applies To
We work on every major Toto line installed in San Antonio homes: Drake, Drake II, Ultramax, Nexus, Aquia, Washlet, and the more recent Neorest models. The compatibility gotcha most homeowners miss is that Toto’s skirted toilets hide the floor bolts differently than a standard toilet, and the rough-in matters. Toto sells both 10-inch and 12-inch rough-in models, and if someone installed a 10-inch on a standard 12-inch line, the tank sits proud of the wall and the wax seal takes uneven pressure over time. We measure before we order anything, every time.
On the OEM versus aftermarket question, our honest position is this: for anything inside the tank, buy genuine Toto. The fill valve assemblies and flapper systems are engineered to Toto’s specific water flow rates, and generic hardware store parts cause ghost flushing and slow refills on these toilets. For chrome trim, supply lines, and wax rings, quality aftermarket options from Fluidmaster or Korky work fine and typically cost 20 to 40 percent less. We’ll tell you which is which on the estimate line item, not after you’ve paid for parts.
Styles & brands we work with
Signs Your Toto Bathroom Remodeling Is Failing
- Phantom refills every 20 to 30 minutes. The flapper or tower seal is weeping water into the bowl. On Toto models, mineral buildup from San Antonio’s hard water accelerates seal wear, so this shows up faster than on the coast.
- The Washlet seat stopped heating, or the warm water is intermittent. Toto Washlets have an inline heating element that scales up quickly in hard water areas. Sometimes it’s a cleanable filter screen; sometimes the element is done and a new seat is cheaper than chasing parts.
- Water staining or soft flooring around the toilet base. The wax ring has failed, and with a skirted Toto, the leak hides under the porcelain skirt until the subfloor is already damaged. We see this weekly in homes throughout the Alamo Heights and Stone Oak areas.
- The shower valve won’t hold temperature when someone flushes a toilet. Toto’s pressure-balance cartridges wear out, and once they start drifting hot-cold, no amount of adjusting the trim ring fixes it. The cartridge needs to come out and be replaced, or rebuilt if it’s an older model.
- Slow, gurgling drains that back up in one fixture only. This is usually a venting or slope problem from the original install, not the Toto fixture itself. But it means opening the wall or floor, which makes it a remodeling job, not a handyman call.
See the difference
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After
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After
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AfterReplacement Cost & What’s Included
Full bathroom remodels with Toto fixtures in San Antonio run $9,000 to $28,000, and that range is driven mostly by the condition of what’s behind the walls and the scope of reconfiguration. A small bathroom remodel that keeps the toilet and vanity in place runs $5,000 to $12,000. A tub-to-shower conversion using a Toto shower valve and trim lands between $3,500 and $10,000. If you’re just swapping a failing Toto toilet and adding a Washlet, you’re typically under $1,500 installed, though that can shift if we open the floor and find water damage.
What you get with us is a written price before any work starts. That price includes the fixture or part, labor, haul-away of the old unit, and repair of any hidden damage we can see before demolition begins. If we open the wall and find something the estimate didn’t cover, we stop, show you what we found, and put the change in writing before we touch another tool. No verbal estimates that grow on the final bill. The workmanship is covered for 365 days from the completion date under the Done Right Promise, and if something isn’t right in that window, we come back and fix it at no charge.
DIY or Call Us?
Here’s an honest split. You can replace a Toto fill valve or flapper yourself in about 20 minutes with a genuine Toto kit and a wrench, and we’ll tell you exactly which kit fits your model if you call. You can also tighten a loose supply line or reset a tripped GFCI on a Washlet outlet. What you should not do is pull a skirted Toto toilet yourself to check the flange, because the skirt makes the bowl heavy in a way that standard toilets aren’t. One wrong lift cracks the porcelain or pinches a finger between bowl and floor. Same goes for opening the wall behind a Toto shower valve: you’re dealing with copper or PEX water lines under pressure, and a bad solder or crimp joint behind tile becomes a $3,000 mistake in an afternoon.
If you’re not sure which bucket your problem falls into, call (254) 269-5071 and describe what you’re seeing. We’ll help you decide over the phone, no charge, no pressure. If it sounds like something we should look at, the estimate is free.
Mason Remodeling Co San Antonio is an independent service provider and installer, not affiliated with Toto. We stock Toto-compatible parts and fixtures alongside other specification-grade lines like KraftMaid, Cambria, and Silestone.
FAQs
With San Antonio’s hard water, a well-maintained Toto toilet lasts 15 to 25 years before major components like the flush tower assembly or fill valve need replacement. The porcelain itself rarely fails. What shortens lifespan here is water chemistry: mineral scale builds on seals and gaskets faster than in softer water regions, which is why we recommend replacing the flapper and cleaning the inlet screen every 3 to 5 years as routine maintenance. Call (254) 269-5071 if you need help identifying your model and the right maintenance kit.
Inside the tank, yes, almost always. Fill valves, flappers, and flush tower seals on Toto toilets are designed as replaceable service parts, and we can rebuild a tank for under $150 in most cases. Outside the tank, it depends. Toto shower cartridges can sometimes be cleaned and re-greased, but once the pressure-balance spool is worn, replacement is the only fix that lasts. Washlet heating elements and pumps are not field-serviceable, so if the seat is more than 4 years old, a new seat is usually the smarter money. Call (254) 269-5071 for an exact quote on your specific model.
A full bathroom remodel with Toto fixtures in San Antonio typically takes 2 to 4 weeks from demo day to final walkthrough, depending on the scope and what we find behind the walls. A toilet or Washlet swap is a same-day job: we’re in and out in under two hours in most cases. We’ll give you a written timeline with the written price, and we hold to it unless you change the scope.
Yes. Our San Antonio crews keep common Toto service parts on the truck: fill valve kits, flapper assemblies, flush tower seals, supply lines, and the correct rough-in hardware for Toto’s 10-inch and 12-inch skirted models. For less common parts like Neorest control boards or specific Washlet heating elements, we order directly from Toto’s supply chain and typically have the part in hand within 3 to 5 business days. Estimates are free, so call (254) 269-5071 and we’ll tell you what we have on hand and what needs to be ordered.
Written by Isaac Pruett, Owner, Mason Remodeling Co San Antonio at Mason Remodeling Co San Antonio, serving San Antonio and nearby areas.
