Fast, Reliable Bathroom Remodeling Across Pomona
Bathroom remodeling in Pomona typically runs $18,000 – $42,000 for a full gut-and-replace, while a refresh without moving plumbing can start around $9,500. Most of our Pomona work happens in older homes that need more than new tile: we’re talking subfloor repair, venting fixes, and panel upgrades before finish materials ever touch the wall. We work in every Pomona ZIP: 91766, 91767, 91768, and 91769. If you’re planning a bathroom remodel in a Pomona bungalow, a 1960s tract home, or a garage-conversion ADU off an alley, call us at (877) 265-9846 for a free estimate.
Why Colonial ADU Builders Is Pomona’s Preferred Bathroom Remodeling Company
We are not a bathroom-only shop from another county. We are a Pomona-area contractor that works on the exact housing stock you live in: 1920s Craftsman homes off Garey Avenue, mid-century stucco tracts east of Towne, and the alley-facing garage ADUs that have multiplied since the state loosened ADU rules. Our Bathroom Remodeling team is in-house. That matters when a remodel inside an ADU requires coordinating plumbing, tile, and the same crew that understands the structure it sits inside.
We know that a bathroom in a detached garage conversion on a deep Pomona lot is not the same as a bathroom in a Claremont tract home. Different venting. Different slab conditions. Different permit triggers. We have done enough work in 91766 and 91797 to know which permits the city wants for street-visible window changes versus what stays entirely interior.
Noel Carrasco, our owner, has managed bathroom remodels across Pomona’s older blocks and its newer ADU builds. When you call, you reach someone who can talk specifics about your parcel, not a call center.
Our Bathroom Remodeling Services in Pomona
ADA-Compliant Bathroom Remodels for Aging-in-Place ADUs
Pomona has a large stock of ADUs being built or converted specifically for aging parents and extended family. A curbless shower, a 36-inch clearance door, and blocking in the walls for grab bars are standard requests for us in this market. These are not upgrades we bolt on at the end; we plan the slope, the drain placement, and the structural reinforcement at rough-in so the bathroom is complaint-ready from day one. In a Pomona garage conversion, that often means adjusting slab elevations before tile ever goes down.
Garage Conversion Bathroom Plumbing and Ventilation
The signature Pomona ADU is a rear-alley garage converted into living space. The bathroom in that conversion is usually the hardest room to get right. Sewer lines were never laid for a shower and toilet in a garage slab. The original slab rarely has a vapor barrier. And a Pomona summer turns an under-vented garage bathroom into a mold incubator within two seasons. We handle the plumbing rough-in, the slab work, and the exhaust routing as a single scope, not three separate vendors.
Historic Overlay District Bathroom Design Review Support
If you own a home near downtown Pomona with a bathroom window that faces the street, your remodel may trigger design review under the city’s historic overlay. We have walked multiple Pomona homeowners through that process. We prepare the drawings, attend the review, and schedule rough-in around the decision. This is the kind of local knowledge that prevents a stop-work order on an otherwise simple job.
Full Bathroom Remodeling in Pomona Homes and ADUs
We strip to the studs where needed, repair subfloors, replace cast-iron drains, upgrade electrical, and rebuild with new tile, fixtures, and venting. For Pomona’s older homes, we often pair a bathroom remodel with a Bathroom Remodeling in Pomona ADU interior finish, so the same team handles the bathroom in the house and the one in the new unit. One contract, no hand-offs.
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 finish bathrooms inside ADUs from Dvele, Mighty Buildings, and Boxabl, among others. That matters to Pomona homeowners because those factory-built units arrive with plumbing chases and wet-wall rough-ins that are not forgiving of last-minute changes. Our team knows where those chases sit, what the factory spec requires, and how to adapt tile and fixture layouts without voiding the manufacturer’s warranty. If you bought or are buying a prefab ADU from one of those brands and need the bathroom completed, we are already familiar with the structure.
Common Bathroom Remodeling Problems We See in Pomona Homes
- Historic overlay stop-work orders. A Pomona homeowner changes a bathroom window or adds an exterior vent on a street-visible wall without design review, and the city halts the job. We check this before we demo. Adding 4 – 8 weeks for review is far cheaper than remobilizing a crew after a stop-work order.
- Undersized exhaust fans in hot garage-conversion bathrooms. A 50 CFM fan rated for a small powder room cannot keep up with a Pomona summer in a garage with no HVAC integration. We spec 110 CFM or higher for those spaces, and we route the duct correctly, not into a ceiling cavity.
- Slab moisture and no vapor barrier. In the 1900s – 1940s Craftsman and bungalow stock, and in many pre-1970s garage slabs, there is no vapor barrier under the concrete. Without proper underlayment and a backer board system, tile cracks and grout fails. We saw this on a Garey Avenue job where the original slab had never been sealed.
- Noise ordinance violations on alley-access blocks. Pomona’s noise window runs 7 a.m. to 7 p.m. on weekdays. Tile saws and concrete cutting outside those hours on a dense block with shared fences will draw complaints and could stall the permit. We schedule noisy work inside the window and notify neighbors ahead of time.
Pricing for Bathroom Remodeling in Pomona, CA
A standard full bathroom remodel in Pomona, with new tile, vanity, toilet, and a new tub or shower pan, runs $18,000 – $42,000. A smaller refresh, keeping the existing footprint and plumbing locations, can start around $9,500. A garage-conversion bathroom, which often requires new slab plumbing and a dedicated exhaust system, typically lands between $15,000 and $28,000 for the bathroom scope alone. ADA-compliant remodels with curbless showers run higher, often $22,000 – $45,000, because of the structural prep and precise slope work. Historic overlay design review adds permit time (4 – 8 weeks) and some drawing cost, but does not meaningfully change labor pricing. Call (877) 265-9846 for a line-item quote. Estimates are free.
We Also Serve Cities Near Pomona
Beyond Pomona, our bathroom remodeling crews work regularly in La Verne, Claremont, Montclair, and the Los Serranos area. The permit rules and housing stock differ from one city to the next, and we know those differences because we work them every week. If you’re in any of those ZIPs, the same in-house team covers your job.
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
Yes, a permit is required for any bathroom remodel inside an existing ADU in Pomona that moves plumbing, cuts into a wall for an exhaust vent, or changes the electrical layout. If it is a like-for-like fixture swap with no wall opening, the city may treat it differently depending on the ADU’s permit history. The safest path is to call (877) 265-9846 with your address and we will tell you exactly what the city will ask for.
If your bathroom has a street-visible wall with a window, vent, or any exterior change, Pomona’s historic overlay will likely require design review before you pull the plumbing permit. That adds 4 to 8 weeks to the front end of the job. Interior-only remodels with no exterior impact typically avoid that review. We handle the review package for you so you are not learning the rules mid-project.
For a bathroom inside a Pomona garage-conversion ADU, the bathroom scope itself typically takes 3 to 5 weeks from demo to finish. If we are slab-cutting for new plumbing or adding an exhaust duct through the roof or wall, add another week. Historic review, if triggered, adds 4 – 8 weeks of permit time that does not include any construction days. We schedule around that so you are not paying for idle crew time.
We size the fan for the room and the climate. In a converted garage in Pomona, that usually means a 110 CFM or larger exhaust fan, ducted to the outside, not into the attic or a wall cavity. We also verify that the ADU’s HVAC system can reach the bathroom, because an exhaust fan alone will not cool a 100°F space. Moisture control in a Pomona summer is a function of both fan capacity and HVAC integration, and we treat them as one system.
Yes. On Pomona’s older blocks, the garage ADU often sits behind a shared driveway or a narrow alley. Staging materials in the driveway and shuttling them back on a utility cart is normal for us. We did exactly that on a 1920s Craftsman off Garey Avenue in 91766, where the bathroom slab had no vapor barrier and the neighbor’s garage sat inches from the fence line. We posted party-wall notice 72 hours ahead, worked within the city’s noise window, and finished the bathroom without a single complaint. Limited access raises labor cost slightly, but it does not change the quality of the result.
Written by Noel Carrasco, Owner at Colonial ADU Builders, serving Pomona and the surrounding cities.