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Toto Construction in San Bernardino, CA | San Mateo Construction
We’re San Mateo Construction, an independent contractor that installs, repairs, and re-roughs Toto fixtures across San Bernardino, from Toto repair in Muscoy to the city center. The thing that sets our Toto work apart here is that we understand how these toilets behave on 1950s concrete slabs, galvanized supply lines, and hard Inland Empire water. We are not affiliated with or authorized by Toto, and we tell you that up front because it matters. Call (855) 901-7266 for a free estimate on any Toto repair, replacement, or bathroom remodel in San Bernardino.
Why San Bernardino Residents Choose Us for Toto Service
Most plumbing outfits can swap a fill valve. Fewer can tell you why a Toto Drake keeps weeping at the base on a settled mid-century slab, or whether the Washlet board that died is worth replacing or if you should put that money toward a full bathroom remodel. We’ve pulled Toto fixtures out of 1940s stucco bungalows in the Westside and 1960s tract homes up near North Park, and we’ve seen what decades of hard water and seismic settling do to them. We also handle Highland Toto service calls with the same expertise.
Noel Carrington, our owner, grew up pouring concrete footings with his father and studied construction technology at Skyline College before spending three decades on residential jobs across the region. He’s the reason we look at the wall framing and the subfloor before we blame the toilet. That approach matters in San Bernardino, where the house is often older than the fixture and the real problem is underneath it.
We use genuine Toto OEM parts on anything that touches the flush path or the electronic seat. We also carry the common items locally so a San Bernardino repair doesn’t wait on a parts shipment from across the country. And because we’re a full general contractor, the same crew that fixes your Toto can open the wall, sister a floor joist, or re-frame for a walk-in shower if that’s what the job actually calls for. For broader Toto sales and service across the region, see our Toto sales & service page.
Styles & brands we work with







Common Toto Construction Problems We Solve in San Bernardino
- Fill valves and flappers fouled by hard water. San Bernardino’s water carries heavy mineral content, and over time it coats Toto fill valves and flappers with scale. The tank runs, or refills on its own at 2 a.m. We replace with OEM Toto parts and adjust for local water conditions.
- Closet flanges set on out-of-level slabs. Mid-century San Bernardino homes sit on concrete slabs that have settled unevenly over 60-plus years. When the flange sits proud or tips, the wax seal fails and water seeps under the toilet. The “leak” is almost never the Toto itself.
- Washlet control boards failing in unvented bathrooms. Many original San Bernardino bathrooms were built with one small window and no exhaust fan. Hot, dusty Santa Ana-season air cycles through the space and stresses electronic Washlet boards and seat sensors.
- Skirted and one-piece Toto bodies trapping moisture at the base. Toto’s skirted designs hide the trapway, but in a bathroom with poor ventilation, condensation and cleaning water collect at the base and corrode trim and supply connections over time.
- Loose or rocking fixtures due to missing anchor bolts and rot. When toilets rock on old San Bernardino slab floors, it’s often because the subfloor has rotted around the flange or the flange itself has separated from the slab. We fix the floor, then re-set the Toto properly.
Toto Service in San Bernardino: What Local Conditions Mean for Your Equipment
Here’s something specific to San Bernardino that most people don’t connect to their toilet problems. The city’s pre-1950s and post-war homes in the older core were built before modern shear bracing and anchor bolting were standard. When a bathroom remodel opens walls to relocate or re-plumb a Toto toilet, we routinely find wall cavities with no shear paneling at all. That means a simple plumbing change often forces a seismic retrofit conversation with the city before the fixture can be signed off. A Toto Drakeset on a slab floor in the Westside can end up triggering plywood shear wall installation and foundation bolting, because the building department will not approve new plumbing in a wall that has not been brought up to current seismic code. If your 1950s stucco ranch has never had that retrofit work done, budget for it before you plan a bathroom remodel that moves the toilet even six inches.
On a 1950s stucco ranch off the Westside, our crew opened a hall bath to replace a leaking Toto Drake and found the closet flange sitting proud on a settled slab with no anchor bolts in the adjacent wall. We broke out and re-set the flange to the correct height, sistered the subfloor, added the shear bracing the city wanted, and re-set the Toto with a new OEM fill valve and wax seal. The toilet was never the problem. The 70-year-old slab and framing were.
Toto Models & Products We Service in San Bernardino
We work on the full Toto residential lineup, and we know each model’s quirks. The Drake (two-piece, 1.28 gpf) is the workhorse we see most often in San Bernardino’s older homes. The Ultramax II one-piece and Aquia dual-flush show up a lot in remodels, especially when homeowners want a cleaner, skirted look. Neorest and Washlet-equipped units bring electronic complexity that pairs poorly with unventilated bathrooms, and we’ll tell you that straight.
Our parts approach is simple: genuine Toto OEM fill valves, flappers, and Unifit adapters on anything that touches the flush path or the electronic seat. We reserve quality aftermarket parts for non-critical trim. On a 15-plus-year-old fixture with a cracked bowl or a dead Washlet board, honest replacement usually beats repair, and we’ll walk you through the numbers before you spend anything.
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AfterToto Service Pricing in San Bernardino
Most Toto repairs fall on our standard trade service rates plus parts, and we give you a written line-item quote before any work starts. What drives cost in San Bernardino more than anything is what we find behind the wall or under the floor. A simple flapper replacement is quick. A re-set on an out-of-level 1950s slab with subfloor rot is a different job entirely.
For Toto work done as part of a larger remodel, here are the ranges we work within:
| Service | Price 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 |
Every estimate includes the specific Toto parts, the labor, and any San Bernardino permitting or seismic work we can see coming. Call (855) 901-7266 for an exact quote on your job.
Serving San Bernardino, CA — Our Local Coverage Area
We’re based in the San Bernardino area and know this community well, including Toto service in Loma Linda. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in San Bernardino
Usually both. San Bernardino’s hard water coats the flapper and the fill valve seat with mineral scale, so the flapper doesn’t seal and the tank refills on its own. We replace the flapper and the fill valve with genuine Toto OEM parts, which handle local water conditions better than bargain aftermarket ones. Call (855) 901-7266 and we’ll diagnose it over the phone, then give you a fixed quote before we come out.
Sometimes, but not always. Many 1950s San Bernardino bathrooms have no dedicated GFCI outlet near the toilet, and the original wiring may not support the seat heater and pump. We’ll check your panel and circuit load, and if a dedicated outlet is needed, that’s a small electrical addition we can handle as part of the job. If the bathroom has no exhaust fan, the Washlet’s electronics will also age faster in the hot, humid air.
Because the slab has settled and the closet flange is no longer flush or level. The wax seal loses contact, water seeps out, and the toilet rocks on the high spots. We use shims, re-set the flange to the correct height, and install an OEM wax seal so the fixture sits solid on the slab. Ignoring the rocking usually makes the subfloor rot worse and turns a repair into a remodel.
It often does. San Bernardino’s building department requires shear bracing and anchor bolts on exterior walls whenever a remodel opens them up, and moving a toilet means opening the wall to re-plumb the waste line. If your 1950s-era home has not been retrofitted, plan for plywood shear panels and foundation bolting as part of the scope. We pull the permits and coordinate that work so it doesn’t stall your remodel.
They can be, but only if the bathroom is properly ventilated. Santa Ana winds bring dry, dust-laden air, and without an exhaust fan, that dust and heat cycle through the unit and stress the control board and sensors. If you’re set on a Neorest or Washlet, we’ll recommend adding or upgrading the bath fan first. Call (855) 901-7266 and we’ll tell you whether the upgrade makes sense for your bathroom’s layout.
Service Areas Near San Bernardino
We serve San Bernardino and the surrounding communities, including San Bernardino service area coverage across the city. If you’re in a neighboring area, we also provide Toto service in Rubidoux and Toto service in Colton. Our crews work throughout the Inland Empire’s older housing corridors, where mid-century slab floors and hard water are the rule, not the exception.
Book Your Toto Service in San Bernardino Today
Tell us what your Toto is doing, and we’ll figure out what’s actually wrong. We serve all of San Bernardino with free estimates and written line-item quotes, including Rialto Toto service. Call (855) 901-7266 to schedule your appointment.
Written by Noel Carrington, Owner at San Mateo Construction. Tell me what you actually need, and we’ll figure out the right way to build it.