Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Toto Construction in Upland, CA | Timberline Contractors
We provide independent Toto installation and repair across Upland and Rancho Cucamonga Toto service, from 1950s ranch homes south of Foothill Boulevard to hillside builds pressing against the San Gabriels in 91784. The one thing that makes our Toto work different here is that we understand how Upland’s hard water, slab foundations, and seismic settling create failure patterns you will not read about in a product manual. Call (866) 253-5808 for a free estimate, and we will diagnose the actual problem before quoting a fix.
Why Upland Residents Choose Us for Toto Service
Nelson Fung, our owner and general contractor, learned the trade at Los Angeles Trade-Technical College and spent years on Eastside remodels before building Timberline Contractors around a simple rule: do it right the first time or explain yourself twice. That rule applies to every Toto fixture we touch. We install and service TOTO toilets daily in Upland’s older ranch homes and hillside custom builds, from original 1980s Drakes to modern Washlet-integrated models. Our crews know the fill valves, flappers, and wax seals that fail in hard-water and seismic conditions here better than any showroom. We also draw on our full Toto sales & service program, which means we can source the exact OEM part or recommend a smarter replacement, depending on what the fixture actually needs.
Styles & brands we work with







Common Toto Construction Problems We Solve in Upland
- Ghost flushing on Drake and Ultramax II models. Hard-water scale builds up in the rim jets and fill valve, causing slow, weak flushes and that eerie middle-of-the-night refill. We have corrected this on everything from 1980s originals to ten-year-old Eco-Drakes in Upland’s central flats.
- Rocking toilets on original 1950s-70s slabs. South Upland ranch homes often sit on slabs with minor movement from expansive soil. The toilet rocks, the wax seal fails, and water seeps under the base. We reset the bowl, shim it level, and install a fresh seal so it stays put.
- Washlet electronics failing from dust and heat. Inland foothill homes north of the 210 get hot, dry air and fine dust through every screen. Seat sensors and pumps on Washlet-integrated models like the Neorest can misread or seize. We test and replace those components without forcing you into a full toilet swap.
- Supply line and fill valve wear. Upland water pressure runs higher than neighboring cities in some pressure zones, and the mineral content is unforgiving. We replace worn fill valves with OEM TOTO parts and use quality aftermarket supply lines where they meet spec.
- Wax seal leaks that hide until it is too late. A failing seal on a slab floor does not always produce a visible puddle immediately. By the time you smell it, the subfloor or baseboard is already wet. We check seal integrity on any Toto repair we do.
Toto Service in Upland: What Local Conditions Mean for Your Equipment
Take the north-side foothill neighborhoods in 91784, where the alluvial fan meets the mountain edge. Expansive and creeping soil shifts slightly with moisture and drought cycles, and minor seismic movement is not theoretical here. What this means for a Toto toilet is concrete: the flange can sit unevenly, the bowl drifts off level, and the wax seal compresses unevenly. You get a leak that never shows up in flatter parts of Upland, like the ranch tracts south of Arrow Highway. So on every Toto installation in the foothills, we check the flange height relative to the finished floor, repair or shim it as needed, and align the seal before the bowl ever touches down. That is not a generic precaution. It is the difference between a toilet that stays dry for twenty years and one that stains the ceiling below within two.
Toto Models & Products We Service in Upland
We service the full current and legacy Toto residential lineup common in Upland homes: the Drake and Eco-Drake high-efficiency models, Ultramax II, Aquia IV, and Washlet-integrated toilets including Neorest. For repairs, we use OEM TOTO fill valves, flappers, and wax seals for reliability, but quality aftermarket supply lines and bolts when they meet spec. TOTO toilets are generally worth repairing unless the bowl or tank is cracked – then replacement with a modern high-efficiency model is the smarter spend. We keep common OEM components in our local stock so most Upland calls do not wait on a parts order.
See the difference
Before
After
Before
After
Before
AfterToto Service Pricing in Upland
Here is what these services run in Upland, based on the work we typically perform:
| Service | Typical Range |
|---|---|
| Bathroom Remodel | $9,000 – $28,000 |
| Walk-In Shower Installation | $4,500 – $12,000 |
| Bathroom Vanity Installation | $800 – $3,000 |
What drives the cost on a Toto-related project in Upland is rarely the fixture itself. It is the condition of the slab underneath, the age of the supply plumbing, and whether we find hidden water damage once the old toilet or vanity comes out. A free estimate gives us time to inspect those conditions and give you a written line-item number before we start. Call (866) 253-5808 to schedule one.
Serving Upland, CA — Our Local Coverage Area
We’re based in the Upland area and also offer Toto service in Claremont, Montclair, and nearby communities. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Toto Construction in Upland
Yes. We diagnose Washlet failures by testing the seat sensor, heating element, and pump separately, because dust and heat in inland foothill homes often kill one component while the rest of the unit works fine. If the electronics are beyond reasonable repair, we quote a replacement seat or integrated model without forcing a full toilet swap. Call (866) 253-5808 for an exact diagnosis and quote.
In Upland, hard-water scale on the fill valve and rim jets is the usual culprit for a Drake that runs or ghost-flushes. We descale or replace the fill valve with an OEM TOTO part, clean the rim jets, and test the flapper seal to stop the cycle. Estimates are free, so call (866) 253-5808 and we will tell you what the fixture actually needs.
Replacing an existing toilet in the same location does not require a permit in Upland. If you are moving the toilet, changing the drain location, or doing a larger bathroom remodel that adds or relocates plumbing, the City of Upland will typically require a plumbing permit. We pull permits and pass inspections on any work where they are required.
Drake and Ultramax II models hold up well to Upland’s mineral-heavy water if you maintain the fill valve and periodically descale the rim jets. The optional Sanagloss glaze on newer Toto bowls helps reduce mineral and waste buildup, which is a real benefit in this water. For Washlet owners, a whole-home softener or point-of-use filter extends the life of pumps and heaters.
Yes, in most cases. We can retrofit a Washlet seat onto an existing Toto bowl as long as there is a GFCI-protected outlet near the toilet. Older Upland homes often lack that outlet, so we quote the electrical work alongside the seat installation so you see the full number up front. Call (866) 253-5808 for a free estimate.
Service Areas Near Upland
Beyond our Upland service area, we handle Toto work in surrounding communities. For projects west of here, see Toto service in Fullerton. For High Desert homes, we also offer Toto service in Apple Valley. We regularly serve Chinatown, Buena Park, and Hesperia as well.
Book Your Toto Service in Upland Today
If you need a Toto repair in Upland or Toto repair in Montclair, call (866) 253-5808 and tell us what the toilet is doing. We will schedule a free estimate, diagnose the fixture in person, and give you a written number before any work begins.
Written by Nelson Fung, Owner & General Contractor at Timberline Contractors, serving Upland, San Antonio Heights Toto service, and the surrounding foothill communities.