Bathroom Remodeling in Upland — Fixed Price, Set Finish Date

Fast, Reliable Bathroom Remodeling Across Upland

Bathroom remodeling in Upland typically runs $18,000 – $42,000 for a full gut-and-replace, with garage-conversion ADU baths landing between $14,000 and $28,000 depending on whether the slab plumbing needs re-routing. We schedule free estimates across 91784, 91786, and 91785, and most quotes go out within 48 hours of the walkthrough. Glen Pacheco leads our team, and we’ve worked through enough Upland bathroom projects to know exactly what the foothill wind exposure and 1950s slab foundations throw at a remodel. Call (877) 801-4497 to get yours on the calendar.

Call (877) 801-4497

Why Fullerton ADU Builders Is Upland’s Preferred Bathroom Remodeling Company

We’re not a general contractor who happens to do bathrooms on the side. Our core trade is ADU construction, which means we understand how a bathroom inside an Upland accessory dwelling unit has to perform differently than one in a primary residence. The wind loading off the San Gabriels, the fire-resistant assembly expectations, the slab-on-grade plumbing quirks in the 91786 core. None of it surprises us anymore.

Upland homeowners keep calling us back because we treat every bathroom as part of the structure’s envelope, not a cosmetic interior job. That distinction matters when the Santa Anas hit and a cheaply flashed window starts leaking into the wall cavity. Our experience up and down Euclid, San Antonio Heights, and the north foothill neighborhoods means we arrive knowing what the city’s design review and building department will ask for before they ask it. Glen Pacheco has walked hundreds of these remodels, and he’ll tell you the same thing every time: the quote that looks expensive up front is usually the one that passes inspection the first time.

Our Bathroom Remodeling Services in Upland

Garage-Conversion Bathroom Build-Out

Most Upland ADUs are garage conversions on 1950s – 1970s slabs, and the bathroom is where those projects get complicated. Old grove-era irrigation lines, unrecorded drainage swales, and cast-iron waste pipes that have been in the ground since Eisenhower was president. We scope the slab work before we quote, not after, so the bathroom doesn’t turn into a change-order disaster halfway through.

Exterior-Wall and Window Flashing to Wind-Driven Rain

Upland sits at the foot of the San Gabriel Mountains, which means direct Santa Ana wind loading. A bathroom window on the windward side of an ADU needs a different flashing detail than anything a coastal LA crew would spec. We use layered flashing assemblies and seal the rough opening before the window goes in, because a remodel that leaks at the first wind event isn’t a remodel, it’s a liability.

Fire-Resistant Wet-Wall and Ventilation Detailing

The city expects fire-resistant detailing on ADU bathroom exterior walls, especially on the 91784 foothill side where dry brush and wind make ember exposure a real concern. We build wet walls with James Hardie backer, fire-rated gaskets at penetrations, and exhaust ventilation sized for Inland Empire heat loads, not a coastal bathroom that never sees triple digits.

Guest and Casita Bathroom Remodeling

Detached casitas on the north side of Upland often have larger footprints, but they still need the same wind-rated flashing and ventilation planning. Whether it’s a full bathroom in a new build or a refresh of an existing guest bath, we match the scope to the lot’s exposure and the structure’s age. No two Upland properties are alike, and neither are two bathroom quotes.

Trusted Brands We Service in Upland

We work directly with prefab ADU manufacturers including Abodu and Cover, which means when a factory-built unit goes onto an Upland lot, the bathroom rough-in and finish work are already part of the scope. We also specify James Hardie fiber cement and backer products on every wet wall, because the moisture and fire resistance they provide matters more here than in most of Southern California. For Upland customers, that translates to faster parts availability and crews who already know the product before they start cutting.

Our Bathroom Remodeling team handles both ADU baths and primary-residence remodels, so the same crew that builds your casita can also upgrade the hall bath in the main house. One contractor, one standard, one warranty conversation.

Common Bathroom Remodeling Problems We See in Upland Homes

• Slab-on-grade plumbing surprises. The 91786 core is dominated by 1950s – 1970s ranch homes on concrete slabs. When a bathroom moves or gets reconfigured, the drain lines have to be cut and re-routed through concrete, and old grove-era irrigation lines sometimes sit right where the new shower pan goes.
• Wind-driven rain intrusions. Foothill-side 91784 homes take direct Santa Ana wind loading. Bathroom vents and windows that aren’t flashed for wind-driven rain leak, and by the time you see the drywall stain, the framing has already been wet for months.
• Undersized ventilation. A bathroom exhaust fan sized for a coastal climate can’t keep up with Upland’s summer heat. Mold shows up in the corners, the paint fails early, and the bathroom smells like a gym locker by August.
• Old framing movement telegraphing through tile. Many Upland garage conversions and attached baths sit on slabs that have shifted over decades. Without the right backer and movement joints, tile cracks follow the framing exactly.

Pricing for Bathroom Remodeling in Upland, CA

We Also Serve Cities Near Upland

Our crews work regularly in San Antonio Heights, Claremont, Montclair, and Rancho Cucamonga. If you’re just over the city line and wondering whether a bathroom remodel will hit the same wind-load and ventilation requirements as an Upland project, the answer is usually yes, and we can tell you exactly what your local building department will want to see before we start. Our Bathroom Remodeling in Upland service area covers all of these communities with the same team and the same standards.

FAQs – Bathroom Remodeling in Upland