







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why Austin Homeowners Choose Toto Construction
Penhallow Remodeling Austin provides independent Toto fixture installation, Toto repair in Austin, and remodel integration across the Austin metro. We work with Toto Washlet, Neorest, and Drake systems inside actual bathroom renovations every week – which means we know the installation tolerances, waterproofing details, and long-term failure points that a parts-only supplier never sees. We are not a Toto-authorized dealer, and we don’t pretend to be one. We’re an independent Austin remodeling contractor that installs and services Toto products to the exact specifications the manufacturer requires, with a written price and a 365-day written guarantee on every job. If you need a Toto toilet reset, a Washlet seat installed, or a full bathroom remodel built around Toto fixtures, call (325) 225-5429.

Why Trust Penhallow Remodeling Austin for Your Toto Construction?

Trevor Nash, owner of Penhallow Remodeling Austin, learned construction fundamentals at Los Angeles Trade-Technical College and has spent well over a decade working on Austin homes, from foundation repairs to full kitchen and bath rebuilds. Our crew has pulled apart enough Toto Drake II toilets and Washlet+ seats in Austin bathrooms to know exactly where these fixtures fail and why – and more importantly, how to fix them without creating a second problem behind the wall.
Here’s what our Toto work looks like. We use OEM Toto parts whenever water contact or electronics are involved: flappers, fill valves, washlet wands, control boards. We don’t gamble with aftermarket seals on a $4,000 Neorest. On out-of-warranty cosmetic items like seat hinges and trim, we’ll use a quality aftermarket part if it matches and saves you real money. We explain the trade-off before we do anything, in plain English. Every Toto repair includes our 365-Day Done Right Promise in writing: if the fix fails inside a year, we come back and make it right at no charge. No service call fee. No re-inspection fee. Just a written guarantee on the work, from a crew that answers the phone when you call.
We’re background-checked, uniformed, and we show up in the window we gave you. That’s the Kingswell Way, operating since 2004. Say the price before the work. Show up when we said we’d show up. Leave the bathroom cleaner than we found it.
Styles & brands we work with







Common Toto Construction Problems We Fix in Austin
These are the real failure modes we see across Austin bathrooms, not a list pulled from a parts catalog. Each one has a specific cause and a specific fix.
- Washlet seat hinge cracking on C100/C200 units. Austin’s hard water leaves calcium scale on the seat hinge pins and pivots. Over two or three years, that scale binds the hinge, and the plastic around the pin eventually cracks when someone leans back. This is a known weak point on older C100 and C200 Washlet models. We replace the hinge assembly and, when the unit is out of warranty, we’ll recommend a quality aftermarket hinge that doesn’t have the same stress concentration. The seat body is usually fine.
- Drake II ghost flushing caused by a warped flapper. The Toto Drake II (model CST454CEFG) uses a 3-inch flapper that sits in a chlorinated water environment. Austin tap water, especially in summer when the city adjusts treatment, degrades rubber flappers faster than the manufacturer’s replacement interval would suggest. When the flapper warps, it leaks water from the tank to the bowl and the fill valve cycles every few minutes to top the tank back off. That’s the ghost flush you hear at 3 a.m. We replace it with an OEM Toto flapper – aftermarket flappers on the Drake II’s 3-inch flush valve often don’t seat correctly.
- Neorest auto-flush sensor losing calibration after Texas power surges. Storm season in Central Texas brings brownouts and surges. The Neorest’s auto-flush sensor and control board are sensitive to voltage spikes, and we’ve recalibrated more than a few after a summer thunderstorm knocked the pairing loose. If the control board itself is fried, we’ll tell you honestly: rebuilding a Neorest beyond the control board isn’t worth your money. Replace the unit.
- Toilet rocking on slab foundations, killing the wax ring. Austin’s 1970s and 1980s slab-on-grade homes sit on expansive clay that moves with drought and flood cycles. When a slab settles even a quarter inch, a toilet that wasn’t shimmed correctly starts to rock. The wax ring breaks, water seeps under the bowl, and you don’t notice until the subfloor starts to show staining – or the floor vinyl starts to peel at the base. This is a structural issue, not a Toto issue, but it’s the most common reason a Toto toilet ends up leaking in an Austin home.
- Washlet+ not fitting an older Drake bowl without an adapter. The Toto Washlet+ system is designed to integrate seamlessly with Drake and Ultramax II bowls. But on some older Drake models the mounting bolt spacing doesn’t match the Washlet+ plate without a retrofit bracket. We see this in East Austin homes where the original 1990s toilet was swapped in, and someone bought a Washlet+ seat assuming universal fit. It’s not universal. We know what fits what, and we’ll tell you before you buy the wrong seat.
Toto Parts & Our Repair-vs-Replace Approach

The honest answer is that we default to OEM Toto parts when water contact or electronics are involved. A Toto fill valve, flapper, or washlet wand is a precision part, and the aftermarket versions we’ve tested don’t match the tolerances. On the Drake II, for example, an aftermarket flapper might be three millimeters off in diameter, which is enough to cause a slow leak from the tank. That leak is why people call us back.
On out-of-warranty cosmetic items – seat hinges, trim plates, bolt caps – we’ll use a quality aftermarket part if it matches the finish and the fit. This saves you anywhere from $40 to $120 per part and doesn’t affect function in any way we’ve measured.
The repair-vs-replace decision comes down to the porcelain and the electronics. If the porcelain and trapway are intact, we repair. A Drake II with a cracked seat hinge is a $150 fix, not a $500 toilet replacement. But if a Neorest or Washlet+ has failed electronics beyond the control board – the auto-flush sensor array, the heater circuit, the motorized wand – rebuilding it costs more in labor and parts than a new unit. We won’t take your money to rebuild something that’ll fail again in six months. If you’re on the fence, call (325) 225-5429 and we’ll give you a straight answer before anyone picks up a wrench.
Our Toto Service Process – Step by Step
- 1
Diagnosis, in writing. We inspect the fixture, the subfloor, the shutoff valve, and the supply line. Before we do any work, you get a written price. Not a range, not a verbal ballpark – a number you can hold us to. If you’re in an older Austin home with cast iron drain lines or a slab foundation, we check those too, because the problem isn’t always the toilet. Tell me what you need, I’ll tell you what it costs, and we’ll go from there.
- 2
The repair or install. We use OEM Toto parts for anything touching water or electronics. We shim with composite wedges on slab floors, not cedar shims that compress and rot. We use double-thick wax rings where the original plumber left a gap. We waterproof behind wall-hung Neorest units with the same membrane system we use for walk-in showers – because a wall-hung toilet that leaks behind the wall is a five-figure problem, not a plumbing call.
- 3
Test, then test again. We run the fill cycle three times, check the flapper seal with a dye test if the tank is suspect, and confirm the auto-flush sensor calibrates correctly after a full power cycle. We sit on the toilet. Seriously – that’s how you know the shim job is right.
- 4
Written warranty, every time. Every Toto repair and install includes the 365-Day Done Right Promise in writing. If the repair fails inside a year, we come back at no charge. Free second visit. No service call. No re-inspection fee. That’s the guarantee, and it’s not a verbal promise.
Our crew reset a Toto Drake II in a 1960s Allandale ranch where the original plumber had left a 3/8″ gap under the bowl. The toilet rocked every time you sat down, which cracked the wax ring and rotted the subfloor underneath. We pulled the toilet, repaired the subfloor, shimmed with composite wedges, sealed with a double-thick wax ring, and reinstalled the existing bowl – no new toilet needed. The homeowner said it was the first time in years the toilet didn’t move when you sat.
See the difference
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AfterToto Products We Service & Install in Austin

We handle the fixtures homeowners in Austin actually have – and the ones they’re buying for remodels. That covers the Toto Drake II (CST454CEFG), the Ultramax II, the Washlet+ system paired with Drake and Ultramax bowls, and the Neorest line. We stock OEM flappers, fill valves, and washlet wands for the most common models locally, so a routine Drake II repair doesn’t wait on a parts shipment. For Neorest control boards and Washlet+ electronic components, we order OEM and schedule the return visit around real part delivery times – we’ll tell you up front how long that is.
We also integrate Toto fixtures into full bathroom remodels, walk-in shower installations, and small bathroom remodels across Austin and Cedar Park. If you’re replacing a tub with a walk-in shower and want a Washlet+ on the toilet, we build the waterproofing and the fixture installation as one job – not two crews stepping on each other.
We Also Service These Brands
Penhallow Remodeling Austin is a General Contractor, not a Toto-only shop. We install and work with KraftMaid and Wellborn cabinetry, Cambria, Silestone, and Caesarstone countertops, and Kohler fixtures alongside Toto. When your bathroom remodel needs a vanity, a quartz top, a Kohler faucet, and a Toto Drake II, one crew handles all of it. That’s why homeowners call us instead of juggling three different trades.
FAQs – Toto Construction Service in Austin
Yes, if the Drake II bowl is from the washlet-ready generation with the correct mounting bolt spacing. Older Drake II models sold before the Washlet+ system launched need a retrofit bracket, and some early bowls don’t accept the integrated wiring cleanly. We’ll check your bowl’s model number and tell you before you buy a seat. If it won’t fit cleanly, we’ll tell you that too. Call (325) 225-5429 and we’ll walk you through it in two minutes.
Nine times out of ten, the flapper has warped and is leaking tank water into the bowl. Austin’s chlorinated tap water accelerates rubber degradation, especially in summer. The fix is an OEM Toto flapper – aftermarket ones don’t reliably seat on the Drake II’s 3-inch flush valve. We keep them in stock. Call (325) 225-5429 for a fixed-price repair with the 365-Day Done Right Promise in writing.
Yes. A wall-hung Neorest has all the supply and waste connections hidden in the wall cavity. If that cavity isn’t waterproofed correctly, a slow leak runs down inside the wall and rots framing long before you see anything on the bathroom side. We waterproof with the same membrane system we use for walk-in shower installations, and we pressure-test the connections before we close the wall. This is exactly the kind of detail that separates a real remodeling crew from a fixture installer.
Most of the time, yes. Toto makes the Drake and Ultramax lines in Sedona Beige and Colonial White, and we can match those finishes exactly. The catch is lead time: some colors are special order from the distributor and take two to three weeks. If you’re in an older Austin or Toto in Georgetown home and the existing toilet is from the 1990s, there’s a chance the color has faded slightly, and we’ll tell you honestly if a new bowl will look slightly different next to a faded tank. Call (325) 225-5429 and we’ll check current availability.
It’s usually an electronic reset, not a plumbing issue. The Washlet remote pairs to a receiver in the seat, and a power surge during a Texas storm can knock the pairing loose. The fix is a reset sequence plus checking the receiver board for surge damage. If the receiver board is fried, that’s a part replacement. This is one of the few times we’d tell you to try the simple reset yourself first – but if that doesn’t work, call (325) 225-5429 and we’ll diagnose it properly.
Here’s a straight answer in writing, the same way we’d give it on a service call:
| Service | Typical Austin Price Range |
|---|---|
| Toilet reset with new wax ring and shims | $400 – $800 |
| Toto Washlet seat installation | $300 – $600 |
| Bathroom remodel with Toto fixture | $9,000 – $28,000 |
The flush-to-flush variation depends on what we find underneath: the condition of the subfloor, whether the shutoff valve is seized and needs replacing, whether the slab settled. You’ll know the exact number before we pick up a tool. Call (325) 225-5429 for a free estimate, and we’ll give you a written price that doesn’t change after demo day.
Book Your Toto Service in Austin, TX
If you have a Toto fixture that’s leaking, rocking, ghost flushing, or just needs a proper reset, call (325) 225-5429. We’ll give you a written price before any work starts, send a background-checked uniformed crew, and back it all with the 365-Day Done Right Promise in writing. Austin homeowners have trusted Trevor Nash and the Penhallow Remodeling Austin crew with their bathrooms for well over a decade. The phone’s answered by a real person, any hour.
Written by Trevor Nash, Owner at Penhallow Remodeling Austin, serving Austin since 2004 under the Kingswell Way.


