Fast, Reliable Bathroom Remodeling Across Pomona
Bathroom remodeling in Pomona typically runs $18,000 – $42,000 for a full gut-and-replace, with shower pan replacements landing between $4,500 and $8,500 when waterproofing and drain work are done correctly. Most Pomona projects take 3 – 5 weeks once demolition starts, though homes built before 1960 often need an extra week for electrical and plumbing corrections that only reveal themselves after walls come down. We work throughout 91766, 91767, 91768, and 91769, and we know exactly what those older Pomona bungalows hide behind the tile. Call (877) 801-4497 to schedule a free estimate and we’ll walk the project with you before any numbers are final.
Why Fullerton ADU Builders Is Pomona’s Preferred Bathroom Remodeling Company
We’re a specialist outfit, not a general contractor squeezing bathrooms between roofing jobs and painting bids. Our Bathroom Remodeling team spends its time on ADUs, kitchens, and baths, which means we’ve opened enough Pomona walls to know what’s behind them. Glen Pacheco leads the company with a simple rule: inspection first, written allowances second, and no surprise work without a signed change order. That discipline matters in Pomona, where a 1940s house on a tree-lined block in the Wilton Heights area will show you galvanized supply lines and cloth-wrapped romex the moment the demo crew gets past the drywall.
We’ve handled remodels across Pomona’s older housing stock, from Craftsman bungalows near Ganesha Park to post-war tract homes south of the 10 through 91766 and into 91768. The homes change, but the pattern doesn’t: old framing, undersized drains, and electrical systems that haven’t been touched since the Nixon administration. We price for what’s likely and document what’s found, so you’re never standing in a gutted bathroom wondering why the number moved. Homeowners in Pomona call us because they want a contractor who already knows what the permit inspector will flag on a 1920s house in the Lincoln Park neighborhood.
Our Bathroom Remodeling Services in Pomona
Full Bathroom Remodel with Permit Management
A full remodel in Pomona means more than swapping tile and fixtures. We pull the permit, schedule the inspections, and manage the corrections the city requires. On Pomona’s pre-1970s stock, that often means bringing the branch circuit up to GFCI protection, replacing the old exhaust fan that vents into the attic, and correcting whatever the inspector flags once the walls are open. We write allowances for these discoveries into the contract up front, so the permit process doesn’t stall the job.
Waterproofing and Shower Pan Replacement
Shower pan failures are the most common bathroom problem we see in Pomona’s older homes. The original hot-mop pans from the 1950s and 60s crack, the weep holes clog, and water finds its way into the subfloor and framing. In homes across the 91767 ZIP, we routinely find rot extending into the floor joists under the pan. We tear out the old pan, replace damaged framing, install a proper PVC or Schluter membrane with a pre-slope, and flood-test the pan before tile goes down. This is not a place to cut corners, and we don’t.
Electrical and Plumbing Upgrades for Older Homes
Pomona’s 1920s through 1950s homes were built for a different electrical era. Most still run 60-amp panels, and many bathrooms share a circuit with the garage or the laundry room. When we open a wall around a vanity or a tub, we find ungrounded branch circuits, cloth-wrapped wire, and splices that never saw a junction box. We handle the panel upgrade to 200 amps, run dedicated 20-amp GFCI circuits, and replace the galvanized supply lines with PEX while the wall is open. You shouldn’t have to tear out new tile in three years because the old copper drain finally let go.
Garage Conversion ADU Bathrooms
Pomona is one of the most ADU-relevant cities in the San Gabriel Valley. The large lots and detached garages on the 1920s – 1950s parcels in 91766 and 91767 make garage conversions the natural path to a rentable unit. We build bathrooms inside those conversions, which means running new drain lines, venting through the roof properly, and upgrading the subpanel to handle the additional load. It’s a different animal than remodeling an existing bath. We’ve done enough of them in Pomona to know where the inspector will look first.
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 Pomona
We install and work around the brands that hold up in Pomona’s inland heat and hard water. James Hardie fiber cement board is our go-to for bathroom backer walls that see steam and moisture year-round, because it doesn’t rot or swell like gypsum when a shower gets daily use. We also specify Schluter waterproofing systems on shower pans and niches, and we’ve built bathroom fixtures around Kohler and Delta rough-ins that Pomona homeowners can service locally without waiting on special-order parts. For cabinet hardware and vanities, we source from local suppliers so replacements and warranty parts don’t require a six-week freight wait. We keep our go-to materials in stock locally, which means a Pomona remodel doesn’t stall because a valve body is on backorder somewhere in Ohio.
Common Bathroom Remodeling Problems We See in Pomona Homes
- Cloth-wrapped wiring on ungrounded circuits. The original 1940s and 50s wiring in Pomona bungalows was never designed for hair dryers, heated floors, or bathroom exhaust fans running simultaneously. When we open a wall, we find splices with no junction box and no ground, so a GFCI retrofit becomes mandatory before inspection passes.
- Cracked cast-iron drain lines and failing vents. The 1950s cast-iron stacks under Pomona homes rust from the inside out. We’ve cut open shower drains and found the trap arm reduced to a thin shell. A partial re-pipe wasn’t the plan, but it’s the fix.
- Exhaust fans venting into the attic. Pomona’s older homes often have bathroom fans that blow moist air directly into the attic space instead of through the roof. That’s mold waiting for a place to happen. Code requires proper ducting and a roof jack, and we add both as standard practice on every remodel.
- Undersized 60-amp panels feeding the whole house. A Pomona home built before 1960 usually has a 60-amp panel that’s already maxed out. Add a bathroom with heated flooring and a dedicated circuit, and the panel can’t handle it. We write the 200-amp panel upgrade into the scope before we start, not as a surprise after demolition.
Pricing for Bathroom Remodeling in Pomona, CA
Here’s what we tell Pomona homeowners before we ever swing a hammer. A full gut-and-replace bathroom remodel in Pomona runs $18,000 – $42,000, depending on square footage, fixture grade, and what the house gives us once walls are open. A shower pan replacement with proper waterproofing lands at $4,500 – $8,500. A small bathroom refresh (new vanity, toilet, flooring, paint) can stay in the $9,000 – $14,000 range. What moves the number: whether your home needs a panel upgrade from 60 to 200 amps ($2,500 – $4,500), whether the cast-iron drain stack needs partial replacement ($1,500 – $4,000), and whether the old shower pan leaked long enough to rot floor joists. We write these as allowances in the contract, priced in writing, and we never start surprise work without your signed approval. Call (877) 801-4497 for a free, itemized estimate on your Pomona bathroom.
Key Takeaways:
- Full bathroom remodels in Pomona run $18,000 – $42,000; shower pan replacement runs $4,500 – $8,500.
- Homes built before 1960 in Pomona frequently need electrical panel upgrades and drain re-pipes once walls are open.
- We price likely discoveries up front as written allowances, so the quote doesn’t move mid-job without your signature.
- We pull permits, manage inspections, and work throughout 91766, 91767, 91768, and 91769.
We Also Serve Cities Near Pomona
We work throughout the eastern San Gabriel Valley and the Inland Empire edge. If you’re in La Verne, Claremont, Montclair, or Los Serranos, our Pomona service area extends to you. The housing stock changes a little from town to town, but the pre-1970s plumbing and wiring issues we’ve described don’t respect city limits. We bring the same inspection-first approach to every bathroom we open, whether it’s a 1940s bungalow in Pomona or a mid-century ranch in Claremont.
Serving Pomona, CA — Our Local Coverage Area
We’re based in the Pomona 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 Pomona
Because the walls in a 1920s Pomona home contain things the homeowner can’t see and the contractor didn’t price: galvanized supply lines that crumble when touched, ungrounded cloth-wrapped wiring, and cast-iron drains that are already failing. We handle this by writing allowances into the contract for exactly these discoveries, so the “extra” cost isn’t extra at all. It’s anticipated and priced in writing before demolition starts. Call (877) 801-4497 and we’ll walk you through what your house is likely to reveal.
Yes. A shower pan replacement in Pomona requires a permit because the waterproofing membrane is a code-inspected assembly. The city’s building department will want to see the pan flood-tested before tile goes down, and the inspector will verify the drain and trap are in good condition. If your existing pan is original to a pre-1970s home, we also check the subfloor and floor joists for rot, because a failed pan usually means water damage underneath. We pull the permit and handle the inspection, so you don’t have to navigate the city’s process alone.
Expect that any permitted bathroom remodel will trigger a panel review, and likely an upgrade. A 60-amp panel from the 1950s cannot safely feed a modern bathroom with a dedicated GFCI circuit, exhaust fan, and heated floor. The city inspector will flag it, and we’ll write the 200-amp panel upgrade into your scope. We had a 1948 bungalow in the 91766 ZIP where a hall bathroom wall opened to reveal cloth-wrapped wiring spliced into a circuit that also fed the garage, no junction box, no ground. We paused, wrote a change order for a dedicated 20-amp GFCI circuit and a panel upgrade to 200 amps, and got the homeowner’s signed approval before pulling new wire. The bath passed inspection. That’s how we run every Pomona job.
We assume cast-iron drains in Pomona’s older stock are near the end of their service life, especially under tubs and showers where decades of water and mineral buildup have corroded the pipe from the inside. When we open a wall around a 1950s cast-iron drain, we half expect to find the trap arm cracked or the vent tied into the old galvanized stack. We price a partial re-pipe allowance into the contract up front. If the drain is still sound, you keep the allowance. If it’s not, we replace the failing section with ABS and document everything for the inspector.
Yes. We build bathrooms inside garage conversion ADUs across Pomona’s R-1 lots, especially in the 91766 and 91767 ZIP codes where detached garages front alleys and rear lot lines. That work means running new drain lines to the main sewer, venting through the roof correctly, and adding a subpanel or upgrading the main panel to handle the additional load. Pomona’s large lot stock from the 1920s through 1950s makes these conversions unusually viable, and we’ve handled enough of them to know what the local inspector flags. If you’re planning an ADU with a bathroom, we can scope it as part of the whole project or as a standalone remodel.
Written by Glen Pacheco, Owner at Fullerton ADU Builders, serving Pomona bathroom remodeling projects across the San Gabriel Valley.