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Toto Construction in Fullerton, CA | Penhallow Remodeling Orange County
We handle Toto fixtures and trim inside Fullerton’s most demanding remodels, from century-old craftsman bathrooms to hillside custom builds. We’re an independent Toto service provider, not manufacturer-affiliated, which means we choose the parts and the fix based on what actually works in Fullerton: hard water, clay soil, and historic district rules all shape the repair. Call (424) 541-1701 for a free estimate on Toto work in Fullerton.
Why Fullerton Residents Choose Us for Toto Service
Trevor Nash leads our Orange County crew, and he learned construction at Los Angeles Trade-Technical College before spending decades on job sites across Southern California. That background matters in Fullerton, where a Toto toilet behaves differently in a 1923 craftsman than it does in a 1962 ranch on slab. We’ve seen which models hold up under the city’s hard water and which ones need a heavier hand at install. Our technicians arrive background-checked and uniformed, and every job gets a written price before we touch a single bolt. The 365-Day Done Right Promise is in writing too: if the fixture fails inside a year, we come back and make it right at no charge. That’s how we protect our Toto sales & service reputation in a city where word travels fast.
Styles & brands we work with







Common Toto Construction Problems We Solve in Fullerton
- Ghost flushing on Toto Drake toilets. Fullerton’s hard water leaves mineral scale on the flapper, and a warped or crusted flapper lets water bleed from tank to bowl. You hear the toilet refill at 2 a.m. even though nobody used it. We replace the flapper with a genuine Toto OEM part and adjust the chain length so the seal seats cleanly.
- Hairline cracks at the base of Toto Aquia skirted toilets. Many older Fullerton neighborhoods sit on clay soil that shrinks and swells through hot, dry summers. When the slab shifts even a quarter inch, a skirted bowl can develop stress cracks at the mounting point. We level the flange, use an extra-thick wax seal, and check for further movement before setting the new fixture.
- Slow tank refill on Toto Ultramax fill valves. After Santa Ana wind seasons, fine sediment works into Fullerton water lines and settles in the fill valve. The tank refills slowly, and homeowners think the valve is dead. Usually it just needs a cleaning or an OEM replacement. We don’t install aftermarket fill valves because they clog faster in Fullerton’s water conditions.
- Toto Washlet seats that stop heating. Summer brownouts and power surges knock out the heating element on Toto Washlet seats across Fullerton. We test the seat, confirm the failure, and replace the component rather than selling you a whole new seat unless the damage is beyond repair.
- Toilet rocking on uneven floors. Pre-1940 Fullerton bathrooms often have settled floor framing under the tile. A rocking toilet breaks the wax seal, and that leads to slow leaks and odor. We shim the bowl, reset it, and write up what we found so you know whether the floor itself needs attention during your next small bathroom remodel.
Toto Service in Fullerton: What Local Conditions Mean for Your Equipment
In Fullerton’s historic districts, any bathroom remodel that changes the visible plumbing footprint can trigger Landmark Commission review. That’s a rule most neighboring cities don’t have to navigate. Suppose you own a 1910s bungalow off Jacaranda Place and want to swap your old toilet for a Toto Aquia IV. If the new toilet changes where the supply line comes out of the wall or how the bowl sits relative to the original tile pattern, the city may want a look. Our approach is to stage the Toto retrofit so the new fixture lands on the existing footprint and we preserve the original hex tile layout. Doing the work this way keeps the job inside a standard plumbing permit and avoids a historic review that can stall the schedule for weeks. We’ve done exactly this in Fullerton’s historic neighborhoods, and it’s one of the reasons homeowners here call us instead of a Fullerton General Contractor or Buena Park.
Toto Models & Products We Service in Fullerton
We service the Toto Drake, Ultramax, Aquia, and Promenade lines, plus Toto Washlet seats and most Toto-tier trims and fill components. Internal parts like flappers and fill valves always come from Toto’s OEM line because aftermarket parts fail prematurely under Fullerton’s hard water. For cosmetic trim and seats, we offer quality aftermarket options when a homeowner wants to match period fixtures in a historic bathroom, but we never compromise on the mechanical core. Our local parts stock covers the common Fullerton failures, so most repairs don’t require a second trip.
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AfterToto Service Pricing in Fullerton

Here’s what Toto work in Fullerton typically runs:
| Service | Price Range |
|---|---|
| Small Bathroom Remodel (Toto fixture swap) | $5,000 – $12,000 |
| Toto OEM flapper and fill valve replacement | $40 – $120 |
| Toilet reset with leveling and new wax ring | $150 – $300 |
The bigger number on a Bathroom Remodeling in Fullerton covers waterproofing, floor repair if the slab has settled, and setting the new Toto fixture correctly. If you just need a flapper and fill valve, the cost is low, and we’ll tell you if a larger problem is lurking. Every estimate is written, free, and good before any work starts. Call (424) 541-1701 to schedule yours.
Serving Fullerton, CA - Our Local Coverage Area
We’re based in the Fullerton 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 Fullerton
Why does my Toto Drake run intermittently in Fullerton, even after I replace the flapper? The flapper probably wasn’t the whole problem, or it was an aftermarket flapper that doesn’t seat on a Toto flush valve the way the OEM part does. Fullerton’s hard water leaves mineral scale on the flush valve seat, and unless that scale is cleaned off, a brand-new flapper will still leak. Call (424) 541-1701 and we’ll clean the seat, install a genuine Toto OEM flapper, and test the seal before we leave.
Can I install a Toto Aquia IV in my historic Fullerton home without violating Landmark Commission rules? In most cases, yes, if the new fixture lands on the same footprint as the old one and you don’t move the supply line or change the visible tile pattern. Permits are handled by Penhallow as part of the project, and we stage the work to stay inside standard plumbing scope. The key is checking the flange location before choosing the toilet model. If you call us before buying, we’ll help you pick a model that works with your existing rough-in.
My Toto Ultramax fills slowly after a Santa Ana wind event – what’s going on? Wind events stir up sediment in Fullerton’s water lines and that sediment collects in the fill valve, restricting flow. We remove the valve, flush the line, and either clean or replace the fill valve with a Toto OEM unit. The fix usually takes under an hour. Call (424) 541-1701 and we’ll get it squared away.
Does replacing a Toto toilet during a small bathroom remodel in Fullerton require a permit? A toilet swap that doesn’t change the plumbing rough-in typically falls under a standard plumbing permit. If the floor or drain needs rebuilding, which happens in older Fullerton homes with settlement, the permit scope expands. We pull the permits, pass the inspections, and handle the paperwork so you don’t have to think about it. If you’re in a historic district, we’ll also check whether the Landmark Commission needs to weigh in before we start.
Why does my Toto Washlet seat stop heating in the summer? Summer brownouts and power surges in Fullerton can take out the heating element in a Toto Washlet seat. The seat still works for cleaning but never warms up. We test the seat, confirm the failed component, and replace it rather than selling you a whole new seat. That keeps the cost closer to $150 – $300 instead of $800 or more for a full seat replacement. Give us a call at (424) 541-1701 for an exact quote.
Service Areas Near Fullerton
We serve Fullerton and the surrounding Orange County communities. Our crews work regularly in Fullerton service area, and we’re familiar with the older housing stock and water conditions in each city. You’ll find us working in Orange, Costa Mesa, and Newport Beach, plus the larger Toto service in Orange County region. If you’re farther south, check our Toto service in Irvine page for details on that area.
Book Your Toto Service in Fullerton Today
Call (424) 541-1701 to schedule your free Toto service estimate in Fullerton. We’ll give you a written number before any work starts, and a real person answers the phone day or night.
Written by Trevor Nash, Owner at Penhallow Remodeling Orange County, serving Fullerton and Orange County since 2004.












