Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why San Antonio Homeowners Choose Toto Construction
Mason Remodeling Co San Antonio provides independent San Antonio Toto service across the city, from King William to Alamo Heights and the north-side slab neighborhoods. We work on Toto Drake, Aquia, Washlet, and Neorest fixtures daily, and we know how these products actually behave in our local water and on our local foundations. We are not authorized by Toto, and we don’t pretend to be. What we offer is hands-on trade knowledge: which Toto parts fail first in San Antonio’s hard water, how to reset a skirted toilet on an uneven slab floor without it rocking, and when to repair versus replace.
If you have a Toto fixture that needs service or you’re planning a remodel that involves one, call (254) 269-5071 for a free estimate.
Why Trust Mason Remodeling Co San Antonio for Your Toto Construction?
We’re a general contractor and remodeling firm that has been operating since 2004 as part of the Threshold Group family. Toto work comes to us in two ways: as a standalone repair and as part of a larger bathroom or whole-home remodel. Either way, the same rules apply. Every crew member is background-checked, identity-verified, and introduced to you by name and photo before arrival under what we call the Threshold Standard.
Isaac Pruett, the owner, spent two decades on job sites across the Southwest before putting down roots in San Antonio work. He learned the fundamentals at Los Angeles Trade-Technical College, and he has pulled enough Toto fixtures out of enough San Antonio bathrooms to know exactly where these products fail and why. When we say a Toto Drake flush valve gasket warps after years of local hard water, that’s not a guess from a brochure. That’s a pattern we’ve seen across dozens of homes in this city.
We also deliver a written price before any work starts. Always. Not as an upgrade, not as a favor. That’s the rule on every Toto repair, every Toto install, every bathroom remodel we touch.
Styles & brands we work with
Common Toto Construction Problems We Fix in San Antonio
San Antonio’s water and climate create a specific set of Toto failure patterns. These are the ones we see most often:
- Toto Drake flush valve gasket warping: The Drake is one of the most common Toto toilets installed in San Antonio homes. Its flush valve gasket, the rubber seal between the tank and bowl, hardens and distorts after years of exposure to our mineral-heavy water. The symptom is a running toilet or a weak flush. We replace these with OEM Toto gaskets and the toilet runs like new.
- Toto Washlet seat wiring chafing at hinge points: Washlet seats route power and control wiring through the seat hinge. In humid Texas bathrooms, especially shower-adjacent installations, that wire insulation abrades where the hinge pivots. The seat loses power intermittently, and the remote stops syncing. We replace the wiring harness with OEM parts and route the cable to avoid the pinch point.
- Toto Aquia skirt mounting bolts loosening on uneven tile: The Aquia’s skirted design hides the trapway and bolts, which looks clean but means the toilet depends on precise floor contact. On uneven tile, particularly on San Antonio’s slab floors where minor settlement is common, those mounting bolts loosen and the toilet rocks. The rocking compresses the wax ring, leading to slow leaks at the floor. We shim the base, torque the bolts correctly, and reset the ring.
- Toto Neorest auto-flush sensor phantom flushing: The Neorest’s auto-flush sensor can misread reflections in small powder rooms with mirrored vanities. The sensor picks up the mirror, thinks someone moved away, and flushes on its own. We adjust the sensor range and, when needed, reposition the mirror or add a diffuser.
- Supply line cross-threading from previous repairs: This is not a Toto factory defect, but it’s a San Antonio reality. In older neighborhoods like Alamo Heights where homes have passed through multiple owners and DIY repairs, we regularly find supply line nuts cross-threaded onto Toto fill valves. The fix requires replacing the entire supply assembly, not just tightening the nut.
Toto Parts & Our Repair-vs-Replace Approach
We prefer OEM Toto parts for anything involving Washlet electronics, flush mechanisms, and internal valves. The aftermarket market for Toto parts includes some good gaskets and fill valves, but electronics are not worth gambling on. A generic Washlet power supply can cause intermittent failures that take three visits to diagnose.
That said, we keep a local stock of common Toto repair parts so we’re not waiting on a distributor for every job. OEM flush valve gaskets for the Drake and Aquia lines, tank-to-bowl bolts, supply assemblies, and wax rings in multiple thicknesses are on our trucks or in our shop. When an OEM lead time is unreasonable, we’ll install a proven aftermarket gasket or fill valve and tell you exactly what we used and why.
Our repair-versus-replace guidance is straightforward. If a Toto toilet is more than 15 years old and has multiple failing components, replacing it with a new Drake or Aquia is usually cheaper than chasing repairs one at a time. We’ll show you the math before you spend a dollar. Call (254) 269-5071 for an honest assessment.
Our Toto Service Process – Step by Step
- 1
Diagnosis: We start with a written note of the exact symptom you’re seeing and when it started. For Washlet or Neorest electrical issues, we test the outlet, the wiring harness, and the seat module individually so we don’t replace the wrong part.
- 2
Repair or install: We use OEM Toto parts where it matters, shim skirted toilets on uneven San Antonio floors, and set every fixture with the correct wax ring thickness for your specific flange height.
- 3
Test: We flush, cycle, and run every function before we leave. For Washlet seats, that includes the heated seat, water pressure, and remote pairing. For Neorest, we test the auto-flush sensor in your actual bathroom lighting conditions.
- 4
Warranty: Every project gets a written guarantee with clearly stated terms. If a repair or installation fails within the coverage period, we return at no charge. That’s the 365-Day Done Right Promise, and it applies to Toto work the same as any other job.
See the difference
Before
After
Before
After
Before
AfterToto Products We Service & Install in San Antonio
We service the Toto product lines most common in San Antonio homes:
- Toto Drake: Two-piece standard and elongated models. We handle flush valve gasket replacement, fill valve replacements, and full unit installs.
- Toto Aquia: Skirted one-piece and two-piece models. We reset, shim, and re-ring these on uneven slab floors across the north and west sides.
- Toto Washlet: Attached and integrated bidet seats. We handle wiring repairs, outlet relocation, seat replacement, and remote pairing on all Washlet models.
- Toto Neorest: High-end integrated units. We service auto-flush sensor calibration, control board issues, and full bathroom integration during remodels.
We stock common Drake and Aquia repair parts locally and can source Washlet and Neorest components quickly through our suppliers.
We Also Service These Brands
Toto is one of the fixture brands we know well, but it’s not the only one. We install and work around KraftMaid cabinetry, Cambria and Silestone surfaces, and Kohler fixtures in the same bathrooms where we service Toto toilets. That multi-brand range matters when your remodel touches the vanity, the shower, and the toilet all at once.
FAQs – Toto Construction Service in San Antonio
Yes. Many San Antonio homes, especially older ones in King William and Alamo Heights, have no outlet near the toilet. We run a dedicated GFCI circuit from the nearest power source and install the outlet at a code-compliant distance from the water supply. This is standard work on our small bathroom remodels, and the cost range is included in the $5,000 to $12,000 scope when combined with a remodel.
Call (254) 269-5071 to talk through your specific layout.
Yes. The Neorest line requires a 12-inch rough-in and specific minimum clearances for the seat lid, the tank access, and the auto-flush sensor path. We measure your existing rough-in before ordering because a 10-inch or 10.5-inch rough-in will not work without a different adapter or a different model entirely. In San Antonio’s older housing stock, we see non-standard rough-ins often enough that we never order a Neorest before measuring.
The Aquia’s skirted design means the bowl sits close to the floor, and the mounting bolts are hidden behind the skirt. If the tile underneath is uneven, which we see constantly on San Antonio’s slab foundations that move with our clay soils, the bolts can be tight while the toilet still rocks along a high spot. We shim the base with composite shims, not wood, then reset the wax ring. Tightening bolts alone never fully fixes a rocking skirted toilet.
Most Toto Washlet seats fit standard elongated and round toilet bowls, including many non-Toto models. Toto publishes a compatibility chart, and we check your specific toilet before you buy a seat. The bigger issue in San Antonio homes is the outlet location and the water supply line routing, not the bowl bolt pattern. We evaluate both on the first visit.
They can, yes. When we pulled a Toto Aquia IV from a 1960s Alamo Heights bathroom to install a walk-in shower, we found the original supply line nut cross-threaded from a previous DIY repair. The skirt also meant the supply line and bolts were harder to access than on a traditional two-piece toilet. We replaced the entire supply assembly with OEM parts, shimmed the skirt, and reset the toilet before tiling. No leaks, no rocking. The lesson for San Antonio homeowners: floor replacement around a skirted toilet requires careful removal and a proper reset, or you’ll be dealing with a hidden leak inside the new floor.
Here are our market-calibrated price ranges for common Toto-involved projects in San Antonio:
| Project | Price Range |
|---|---|
| Bathroom Remodel with Toto fixture reset | $9,000 – $28,000 |
| Tub-to-Shower Conversion including Toto toilet reset | $3,500 – $10,000 |
| Small Bathroom Remodel with Toto Washlet outlet relocation | $5,000 – $12,000 |
Call (254) 269-5071 to get an exact written quote. Estimates are free, and the price we give you before work starts is the price you pay.
Book Your Toto Service in San Antonio, TX
If your Toto fixture needs repair, or you’re planning a bathroom remodel that includes one, call us at (254) 269-5071. We’ll schedule a free estimate, send a technician’s name and photo before the visit, and give you a written price before any work begins. Know who’s coming, know what it costs, know it’s covered, that’s the whole job before the job starts.
Written by Isaac Pruett, Owner at Mason Remodeling Co San Antonio, serving San Antonio since 2004.
