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Toto Construction in Westminster, CA | Alder Contractors
We provide independent Toto installation and repair across Westminster’s homes and commercial spaces. The short answer is yes, we service every Toto fixture you own, from a Drake toilet in a 1960s ranch off Bolsa Ave to a Washlet bidet seat in a pho restaurant’s back-of-house restroom. We are not a Toto dealer and we don’t claim to be authorized by the manufacturer. What we are is an Orange County general contractor that has pulled Toto toilets, Washlets, and lavatory fixtures out of hundreds of Westminster remodels, and we know exactly how these fixtures fail in this city’s water and this city’s buildings. Call (833) 467-7020 and tell us what you’re dealing with.
Why Westminster Residents Choose Us for Toto Service
Alder Contractors is led by Nelson Ibarra, who grew up running job sites with his father and has spent three decades in Southern California construction. He’s the first to say that a Toto toilet is only as good as the flange underneath it and the valve feeding it. We stock genuine Toto OEM fill valves, flappers, tank gaskets, and Washlet inlet screens. That matters here because Westminster’s municipal water runs hard enough to scale a Washlet nozzle into a paperweight if you wait too long. We know Toto sales & service from the fixture side and the framing side, which is why homeowners call us instead of a plumber who’s never reset a toilet on a settling 1950s slab.
We are independent. No manufacturer badge, no factory authorization. That’s not a weakness; it means we tell you honestly when a $12 flapper fixes your running Drake and when a cracked Ultramax tank means replacement. We serve all of Westminster including the 92683, 92684, and 92685 ZIP codes, and we also provide Stanton Toto service, and we’re familiar with the permit counter, the plan-check wait times, and the inspection quirks that come with this city.
Styles & brands we work with







Common Toto Construction Problems We Solve in Westminster
- G-Max tower flappers and fill valves that wear out on Drake toilets. Westminster’s municipal water runs hard enough to warp a flapper over three or four years. The result is phantom refill, a running toilet at 2 a.m., and a water bill that creeps up $20 a month. We replace the tower and fill valve with OEM parts in one visit.
- Washlet electronic bidet seats that stop self-cleaning or heating. Hard-water scale clogs the inlet screen and nozzle assembly on Washlet C5 and C200 seats. The seat still flushes but it’s not doing the job you paid for. We disassemble, descale, and replace the inlet screen, and we’ll tell you if the heating element has already burned out.
- One-piece Ultramax and EcoPromenade tanks that develop slow leaks at the tank-to-bowl gasket. On Westminster’s 1950s-to-1970s slab homes, a slow leak doesn’t drip into a basement. It seeps under the toilet and stains the flooring before you ever see water. We catch these during remodels and repair them before the subfloor rots.
- Wax ring and closet flange failures on aging ranch-home bath floors. Decades of settling crack cast-iron and PVC flanges on compact Westminster lots. Owners smell sewer gas and assume the Toto is defective. It’s almost never the porcelain. We replace the flange, reset the bowl, and the odor’s gone.
- Back-of-house commercial restroom failures in Little Saigon tenant spaces. Bolsa Ave restaurants and shops run toilets hard. A Drake in a busy pho shop sees more flushes in a week than a home bathroom sees in a month. We service these on a schedule that works around the business’s open hours.
Toto Service in Westminster: What Local Conditions Mean for Your Equipment
Westminster’s Little Saigon corridor is not like the residential streets of Toto in Garden Grove or Fountain Valley. A single block of Bolsa Avenue can have a 30-year-old strip center, a brand-new restaurant build-out, and a tenant remodel under permit review at the same time. What that means for Toto owners is that many bathroom and kitchen remodels in this city are tenant build-outs or owner-occupied shop back-of-house baths. The fixture set has to pass City of Westminster plan check and inspection scheduling, and the person managing the build may not have an English-fluent superintendent on site. We coordinate that entire process. On a Bolsa Ave pho restaurant tenant build-out, our crew found the back-of-house restroom’s Toto Drake running continuously. The G-Max tower flapper had hardened and the closet flange was cracked from the old slab. We set a new OEM fill valve and flapper, replaced the flange with a repair ring, reset the Drake, and added a Washlet inlet screen service to the owner’s existing bidet seat so the restroom passed inspection before the shop’s soft opening. That’s the kind of detail that makes or breaks an opening date on Bolsa.
Toto Models & Products We Service in Westminster
We work on the Toto Drake line (CST743 and CST746 two-piece models with G-Max flush), the Ultramax II one-piece (MS604114CEFG), Washlet C5 and C200 electronic bidet seats, the EcoPromenade, and the Aquia dual-flush line. Our parts approach is simple: we use genuine Toto OEM fill valves, flappers, tower assemblies, tank gaskets, and inlet screens because aftermarket flush towers change the G-Max flush performance and void the fixture’s efficiency. When a valve or gasket restores the toilet, we repair it. When the porcelain or electronics are shot, we say so and quote replacement honestly. We keep common OEM parts on our trucks so most Westminster service calls are one trip.
See the difference
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After
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AfterToto Service Pricing in Westminster
What you pay depends on what’s actually wrong. A running Drake that needs a new fill valve and flapper is a different job than a full bathroom remodel with a new Toto tub-to-shower conversion. Here’s the range we quote across Westminster:
| Service | Typical Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Small Bathroom Remodel | $5,000 – $12,000 |
| Tub-to-Shower Conversion | $3,500 – $10,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
Your free estimate includes a look at the fixture, the flange, the water line, and the subfloor, because a $400 toilet swap on a rotted subfloor is a $4,000 problem waiting. Call (833) 467-7020 and we’ll give you a written line-item quote.
Serving Westminster, CA — Our Local Coverage Area
We’re based in the Westminster area and know this community well, just as we know Toto service in Huntington Beach. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in Westminster
Yes. Hard water is the number one killer of Washlet seats in Westminster’s commercial kitchens and restaurant bathrooms. We descale the nozzle and inlet screen, replace the screen if it’s clogged, and check the heating element and control panel. If the scale has gone too far, we’ll tell you before we spend your money on a repair that won’t hold. Call (833) 467-7020 and we’ll work around your business hours.
In almost every case, it’s the G-Max tower flapper or the fill valve. Westminster’s municipal water hardens the rubber on G-Max flappers over time, and once it warps, water seeps past it and the toilet phantom-refills all night. We replace the flapper and fill valve with OEM parts in one visit. Call (833) 467-7020 for a service call, and don’t wait because that running water is on your bill.
Yes. Alder Contractors is a licensed general contractor and we pull permits, schedule inspections, and manage the plan-check process with the City of Westminster. For a bathroom remodel that includes plumbing fixture changes and a shower replacement, permits are required, and we handle the paperwork so you don’t have to chase the city. Call (833) 467-7020 and we’ll walk you through what your specific job will need.
It depends on where the leak is. A leaking tank-to-bowl gasket is repairable with an OEM gasket. A cracked porcelain tank or bowl is not worth repairing, and we will say so directly. One-piece Ultramax models are harder to field-repair than two-piece Drakes because the tank and bowl are a single casting, but gasket and bolt-seal work is routine. Call (833) 467-7020 and we’ll give you the straight answer on your specific fixture.
That depends on your water bill and your flange. A Toto Aquia dual-flush or EcoPromenade saves water over the old 3.5-gallon-per-flush toilets common in 1950s Westminster ranch homes. But if your closet flange is cracked from decades of settling, the new toilet will leak at the base within a year. We inspect the flange and the rough-in dimensions before we quote a replacement. Call (833) 467-7020 and we’ll tell you if your floor is ready for a new Toto.
Service Areas Near Westminster
We work throughout Westminster service area and the surrounding Orange County communities. If you’re in a neighboring city like Garden Grove, Huntington Beach, Fountain Valley, or Stanton, we can extend service there on a case-by-case basis. We also maintain relationships with clients further out, including Toto service in Silver Lakes and Toto service in Temecula, though our primary Toto service coverage is Westminster and its immediate neighbors.
Book Your Toto Service in Westminster Today
If your Toto is running, leaking, or just not performing like it should, call (833) 467-7020. We’ll schedule a service visit, diagnose the problem honestly, and quote you a line-item price before any work starts. Do it right the first time, the callback always costs more than the extra hour up front.
Written by Nelson Ibarra, Owner at Alder Contractors, serving Westminster since day one.