







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Toto Construction in Grapevine, TX | Mason Remodeling Co Dallas
We provide independent Toto service across Grapevine, from the historic bungalows off Main Street to the new builds near Lake Grapevine. The thing that makes our work here different is simple: we stock Toto-specific parts locally, so a Drake that won’t stop running or a Washlet that’s drifted out of calibration gets diagnosed and fixed without waiting on a supply chain that doesn’t care about your schedule. Call (432) 302-8761 for a written quote on any Toto repair, replacement, or Bathroom Remodeling in Grapevine. We’re not the manufacturer’s service arm, but we’ve been installing and repairing Toto fixtures in Grapevine homes long enough to know what holds up here and what doesn’t.
Why Grapevine Residents Choose Us for Toto Service

Isaac Pruett has been running Grapevine General Contractor crews for more than two decades, and he still walks every Grapevine job himself before the first tool comes off the truck. That habit came from years of watching remodels go sideways when nobody looked at the actual house before quoting it. We train our crews on real Toto models in real Grapevine homes, from Neorest washlets to the older cyclone-flush Drakes that have been flushing fine since the 1990s and just need a flapper that actually seats.
We’re an independent Toto service provider. That means no manufacturer markup on parts, no “authorized only” pricing games, and no pressure to sell you a new fixture when a $14 fill valve does the job. We carry genuine Toto OEM parts for the components where original spec matters, and we’ll tell you straight when an aftermarket seal or seat performs just as well for less. For Toto sales & service across the Metroplex, homeowners tell us the same thing: they want someone who shows up on time, puts the number in writing, and doesn’t disappear when the job gets complicated.
Styles & brands we work with







Common Toto Construction Problems We Solve in Grapevine
These are the five failure modes we see most often in Grapevine homes, and they’re almost always tied to local conditions rather than manufacturing defects.
- Running toilets from hard water flapper degradation. Grapevine’s municipal water carries enough dissolved minerals that Toto Drake and Ultramax flappers stiffen and warp within two to three years. A flapper that won’t seat means a toilet that cycles all night. We stock OEM Toto flappers and can usually swap one in under thirty minutes.
- Washlet sensor drift after summer storms. Toto Neorest and Washlet bidet seats rely on precision sensors, and Grapevine’s humid summers plus power surges from severe weather knock them out of calibration. A seat that flushes itself randomly or won’t activate isn’t broken electronics, usually, it’s drift we can correct with a recalibration sequence.
- Cracked porcelain at the base. North Texas clay soil expands and contracts with moisture, and Grapevine sits right on top of it. Pier-and-beam homes shift seasonally, and a toilet or pedestal sink bolted to a moving floor eventually develops hairline stress cracks at the mounting points. We set replacement fixtures with wax-free seals that tolerate small movements better than traditional wax rings.
- Cemented aerators on Toto faucets. Mineral-heavy water doesn’t just affect toilets. Toto kitchen and bath faucets in Grapevine develop aerators so crusted with scale that they need a soak and a strap wrench to remove. The internal cartridges scale up too, which is what turns a once-smooth handle into one that fights you.
- Clipped supply lines at original shutoff valves. Older Grapevine homes, especially the pre-WWII stock, often have multi-turn shutoff valves that never fully close. When we pull a Toto toilet for a flange repair or a floor issue, we frequently find the valve weeping. We replace them with Toto OEM quarter-turn stops as standard practice on any job where the fixture comes off the wall.
Toto Service in Grapevine: What Local Conditions Mean for Your Equipment
Here’s the Grapevine-specific insight that doesn’t show up on generic Toto pages: in the historic district, Toto fixtures installed in pre-WWII homes have to work with original cast-iron drain lines and narrow wall cavities. The Grapevine Historic Preservation Commission restricts wall penetrations on protected structures, which means you can’t just open up a lath-and-plaster wall to run a new electrical line for a Washlet the way you would in a 2005 brick tract home. Our crews have adapted custom mounting plates and offset flanges to fit modern Toto toilets and washlets into these old houses without triggering a preservation review. That’s not a kit you order online. It’s something you develop after enough jobs where the rough-in is 10 inches instead of 12 and the closet bend is a century old. On West Texas Street near the Grapevine Vintage Railroad, we replaced a leaking Toto Ultramax in a 1920s Craftsman where the original cast-iron closet flange had rusted and gone slightly out of level. We machined a PVC offset flange into the existing lead riser and set the new Ultramax with a wax-free seal, then rebuilt the shutoff with a Toto OEM quarter-turn stop because the old multi-turn valve couldn’t close without weeping. That’s the difference between a parts swapper and a crew that’s done this exact job in the house next door.
Toto Models & Products We Service in Grapevine
We service the full residential Toto line: Toto Neorest integrated toilets, Toto Drake and Drake II two-piece toilets, Toto Ultramax one-piece units, and every generation of Toto Washlet bidet seat from the earliest C100 models to the current S7 and S550 series. For Neorest and Washlet electronics, we use genuine Toto OEM parts exclusively, fill valves, flappers, sensors, and control boards included. For non-critical seals, seats, and supply connections, we’ll recommend a quality aftermarket part when it performs equally and costs less. If you have an older Toto fixture with multiple failed components, we’ll give you an honest repair-vs-replace analysis. A 15-year-old toilet that needs a flapper, a fill valve, and a new flush tower is often better off replaced than pieced back together at $80 a visit.
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AfterToto Service Pricing in Grapevine

Toto work in Grapevine spans a wide range depending on whether you’re fixing a running toilet or gutting a master bath. Here’s what we quote, in writing, before any work starts.
| Service | Price Range |
|---|---|
| Toto Neorest toilet install | $14,000 – $45,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Walk-In Shower Installation with Toto fixtures | $4,500 – $12,000 |
| Bathroom Remodel (Toto toilet + vanity + tile) | $9,000 – $28,000 |
What drives the spread is scope, not surprises. A tub-to-shower conversion in a pier-and-beam Grapevine bungalow where we’re also leveling the floor and moving a drain line sits at the upper end. Same job in a slab-on-grade subdivision house with a standard 60-inch alcove lands lower. Your free estimate includes the line-item breakdown, the exact Toto models specified, and the guarantee terms in writing. Call (432) 302-8761 and we’ll come measure.
Serving Grapevine, TX - Our Local Coverage Area
We’re based in the Grapevine 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 Grapevine
In Grapevine, the usual culprit is hard water scale building up on the flush valve seat, so a brand-new flapper never actually seals against a crusted surface. We clean or replace the flush valve assembly with OEM Toto parts and test with a dye tablet to confirm the seal. If the fill valve was also struggling against high mineral content, we’ll quote you an OEM replacement at the same visit. Call (432) 302-8761 for an exact diagnosis, estimates are free.
Yes, in most cases. We’ve installed Washlets in Grapevine historic district homes by running a slim, code-compliant power line through existing plumbing chases or along baseboards with paintable raceway, avoiding any wall penetration that would require Grapevine Historic Preservation Commission review. We’ll confirm your specific layout at the estimate visit and tell you exactly how the electrical will route before we quote a number.
For Grapevine homes on pier-and-beam or slab foundations over expansive clay, we recommend the Toto Ultramax one-piece line for its integrated mounting stability, and we set every toilet with a wax-free seal that tolerates seasonal floor movement better than traditional wax. On pier-and-beam homes with noticeable floor deflection, we’ll also check the flange and subfloor condition before recommending any fixture. Call (432) 302-8761 for a floor assessment and written quote.
A Toto Neorest draws 120V for the heated seat, warm water, and pump, and Toto specifies it should be on a GFCI-protected circuit. In many older Grapevine homes, the bathroom outlet is not GFCI-protected or is shared with a bedroom circuit that trips under load. We have an electrician on every Neorest install to run a dedicated GFCI circuit when required, and the cost is included in your written estimate before work starts.
Yes, Toto bath and shower cartridges are replaceable, and that’s almost always the fix for a constant drip in a Grapevine home. The complication here is scale, by the time a cartridge fails it’s often cemented into the valve body by mineral buildup, and the wrong removal technique can snap the stem and turn a $40 cartridge job into a full valve replacement. We have the pullers and patience to do it right. Call (432) 302-8761 and we’ll quote the cartridge replacement, or an honest replacement alternative if the valve has already been through several.
Service Areas Near Grapevine
We run Toto service calls from our Dallas base into Grapevine service area and the surrounding cities. That includes Toto service in Dallas, Toto service in Mesquite, Coppell, Carrollton, and Addison. If you’re within about thirty miles of Grapevine and own a Toto fixture, call us.
Book Your Toto Service in Grapevine Today
You should know who is coming, what it costs, and what happens if something goes wrong, before we ever pick up a tool. We’ll put that in writing. Call (432) 302-8761 to schedule your free Toto service estimate in Grapevine.
Written by Isaac Pruett, Owner at Mason Remodeling Co Dallas, serving Grapevine since 2004.











