Fast, Reliable Bathroom Remodeling Across San Antonio Heights
Bathroom remodeling in San Antonio Heights typically runs $18,000 – $45,000 for a full gut-and-rebuild, with permit-driven code upgrades adding $3,000 – $9,000 depending on what’s behind the walls. In this unincorporated San Bernardino County foothill community, most of our work starts with homes built between 1950 and 1980, which means aluminum wiring, mortar-bed shower pans on shifting slabs, and framing that predates modern wet-area codes. We know this housing stock because we work in it weekly. If you’re planning a remodel here, the phone number to call is (877) 801-4497. We’ll walk your specific home before quoting anything.
Why Fullerton ADU Builders Is San Antonio Heights’s Preferred Bathroom Remodeling Company
Our Bathroom Remodeling team has spent enough time inside San Antonio Heights homes to know what contractors from the valley floor miss. The permit route isn’t Upland’s. It’s San Bernardino County Land Use Services, and the inspection sequence on a 1960s custom ranch off Euclid Avenue looks different than it does three blocks inside Upland city limits. We don’t treat that as a trivia fact. We treat it as the thing that decides whether your final invoice matches your contract.
San Antonio Heights customers consistently tell us the same thing: they’d rather hear what a remodel will actually require than get a low number that balloons once the county inspector sees open walls. Our quotes from San Antonio Heights homes on 91784 parcels north of 24th Street include written allowances for the wiring, waterproofing, and framing corrections this housing stock typically hides. Glen Pacheco set this company up around one principle: inspect first, price second, and never let a homeowner learn about a code upgrade from the inspector before they’ve heard it from us.
We’re licensed, insured, and bonded, and we pull every permit ourselves. When a San Antonio Heights homeowner calls us about a hall bath on a terraced lot above Beryl Park, we already know the hillside grading review might touch the exterior wall footing. That’s not something we figure out on site. It’s in the first conversation.
Our Bathroom Remodeling Services in San Antonio Heights
Inspection-First Bathroom Remodeling
We don’t write a fixed price before opening walls. On an unincorporated San Antonio Heights property, that approach fails more often than it works. Our process starts with a site inspection that includes pulling vanity and fixture covers, checking the panel for aluminum branch wiring, and testing shower pan integrity where access allows. For a 1974 split-level off Mountain Avenue, we found a mortar-bed pan that looked fine from above and had rotted the subfloor underneath. The homeowner saw photos, approved the supplement in writing, and we rebuilt the pan with a PVC liner and cement board the same week. That’s what an honest remodel looks like here.
This isn’t a premium add-on. It’s the only way we’ll bid San Antonio Heights work, because the alternative is a change order after demolition that should have been a line item before it.
Permit-Driven Code Upgrades
San Bernardino County requires permits for any bathroom remodel that moves plumbing, alters framing, or touches electrical. In San Antonio Heights, that’s nearly every project we touch. Once the permit is pulled, the county inspector will check circuits that were grandfathered for decades. Aluminum wiring from the 1960s and 70s, spliced to copper with nothing but electrical tape, fails that inspection the moment the cover comes off. We handle the correction, the inspection scheduling, and the documentation so the homeowner never stands between a county inspector and an open wall.
Waterproofing and Shower Rebuilds
San Antonio Heights lots sit on sloped, often terraced foothill terrain. Clay soil expands and contracts with rain and drought cycles, and original mortar-bed shower pans from the mid-century custom builds crack under that movement. The homeowner sees a little water stain on the ceiling below and assumes a loose tile. We assume a failed pan until proven otherwise. Our rebuilds use modern waterproofing systems (cement board, liquid membrane, or sheet membrane depending on the substrate) and pressure-balanced valves that meet current county code. No tile-over-hide shortcuts.
Accessibility and Aging-in-Place Bathrooms
Many San Antonio Heights homeowners have lived in these houses for 30 or 40 years. They want a shower they can step into safely without moving. We build curbless showers, blocking for grab bars, and comfort-height vanities on these remodels, and we do it without making the room feel institutional. For one homeowner on the terraced section above 23rd Street, we widened the door opening into a 1962 hallway bath and converted the tub to a walk-in shower while maintaining the original ranch character.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in San Antonio Heights
We specify James Hardie fiber cement products where moisture and hillside exposure make them the right call; San Antonio Heights gets strong afternoon sun and periodic Santa Ana winds, so durable exterior detailing around bathroom vent penetrations matters as much as what’s inside the wet wall. For fixtures and finishes, we work with what fits the home and budget: a 1958 custom ranch off Euclid gets different fixtures than a 1980s semi-custom on the ridge. Our team has working familiarity with the full spectrum of prefab systems from Abodu, Cover, and Dvele, but a bathroom remodel is where that brand-agnostic approach serves you differently: we match the product to the existing home, not the other way around. Parts for San Antonio Heights jobs come from our established supply relationships, and when something needs to be ordered, we don’t let a shower valve hold your job hostage.
Common Bathroom Remodeling Problems We See in San Antonio Heights Homes
- Aluminum wiring behind vanity walls. Homes built in San Antonio Heights during the 1960s and 70s frequently used aluminum branch circuits. Pull a permit, open a wall, and the county inspector will flag every spliced connection in view. We budget for this before the first swing of the demo hammer.
- Cracked mortar-bed shower pans on foothill slabs. The clay soil under San Antonio Heights shifts with seasonal moisture change. A 1960s mortar pan has no waterproofing membrane; the grout and tile were the only defense. When it cracks, water goes straight into the subfloor. Cosmetic tile-over never fixes this.
- Undersized framing over tub and shower enclosures. Mid-century customs in San Antonio Heights often used 2×4 headers where modern code expects 2×6 or larger. The moment you pull a permit, that header gets reviewed. We catch it in inspection and price it in the original contract.
- Hillside grading triggers footing review. On sloped San Antonio Heights lots, the county may require structural verification of the bathroom’s exterior wall footing as part of the remodel permit. A contractor who only works flat valley-floor lots will miss this entirely. We don’t.
Pricing for Bathroom Remodeling in San Antonio Heights, CA
A standard full bathroom remodel in San Antonio Heights runs $22,000 – $38,000 when we’re doing a gut to the studs, new waterproofing, new fixtures, and code upgrades. A primary bath with a shower rebuild and electrical correction on an older foothill custom home typically runs $28,000 – $45,000. A targeted shower pan replacement with waterproofing runs $8,000 – $14,000 depending on what the demo reveals. These are real numbers from real San Antonio Heights jobs, not averages pulled from a national database.
What moves the number: age of the home (pre-1970 costs more for wiring), hillside location (footing review, retaining access for materials), and whether the shower pan has already failed. Our contracts include written allowances for each of these. If a hidden condition costs less than the allowance, you pay less. If it costs more, you approve the number in writing before we proceed. Call (877) 801-4497 for a free estimate on your specific San Antonio Heights bathroom.
We Also Serve Cities Near San Antonio Heights
Our crews work throughout the foothills and valley floor around San Antonio Heights, including Upland, Claremont, Rancho Cucamonga, and Montclair. If you’re just inside Upland city limits, your permit goes through Upland’s building department, and we handle that too. But if you’re on an unincorporated San Antonio Heights parcel above the 210, the county route is yours, and we know it cold.
Serving San Antonio Heights, CA — Our Local Coverage Area
We’re based in the San Antonio Heights 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 – Bathroom Remodeling in San Antonio Heights
Yes. San Antonio Heights is unincorporated San Bernardino County territory, so bathroom remodels that alter plumbing, framing, or electrical work require a permit from San Bernardino County Land Use Services, not the city of Upland. Any remodel that opens walls around a shower, moves a toilet, or adds a circuit triggers this. Our contracts include the permit paperwork, the plan components where required, and the inspection scheduling. Call (877) 801-4497 if you want a straight answer on whether your specific scope needs a permit.
Because San Antonio Heights grew fast in the 1960s and 70s, when aluminum branch wiring was common in custom and semi-custom foothill homes. The county inspector will require correction of any aluminum-to-copper splice that’s uncovered during a permitted remodel. We include an electrical allowance in every San Antonio Heights contract, so a wiring correction doesn’t surprise you mid-project. It’s priced before demo starts.
Yes. If your home sits on a sloped or terraced lot, San Bernardino County may trigger a grading and footing review for the bathroom’s exterior wall as part of the permit. That can add structural work to the scope, and the cost depends on what the review finds. We walk the lot and review your existing plans before quoting, so hillside factors show up in the initial estimate, not as a change order. Call (877) 801-4497 to schedule that walk-through.
We open it, photograph the damage, and write a supplement that you approve in writing before we rebuild. That’s our process on every job, but on a 1970s San Antonio Heights custom where the original mortar bed has been leaking into the subfloor, it’s the only honest sequence. We rebuild the pan with a modern waterproofing system and pressure-balanced valve to pass county inspection the first time.
It lists the full scope we can see, plus written allowances for the conditions this housing stock typically hides: aluminum wiring corrections, framing upgrades, and shower pan rebuilds. You see every allowance before you sign. If a hidden condition exceeds the allowance, you approve the new number in writing before we spend it. If it comes in under, the savings stay with you. That’s the contract we’ve used on San Antonio Heights jobs from the Historic Route 66 corridor to the foothill terraces above Euclid.
Contact Fullerton ADU Builders for Your San Antonio Heights Bathroom Remodel
If you live in San Antonio Heights and you’re planning a bathroom remodel, call us at (877) 801-4497. We’ll walk the home, check the wiring, check the slab, check the slope, and give you a written quote that reflects what your house actually is, not what a flat-lot template assumes. Glen Pacheco and our team work this foothill community every week, and we’d rather tell you the truth about your walls than sell you a number that won’t hold.
Written by Glen Pacheco, Owner at Fullerton ADU Builders, serving San Antonio Heights and surrounding San Bernardino County foothill communities.