Fast, Reliable Bathroom Remodeling Across Montclair
Bathroom remodeling in Montclair runs $18,000 to $45,000 for a typical full gut-and-replace of a 1950s – 70s tract home bathroom, with most projects landing between $22,000 and $32,000 once you account for the permit-triggered electrical and drain work these older houses almost always require. We’re Uptown ADU Builders, led by Alan Drescher, and we’ve remodeled enough bathrooms along Monte Vista Avenue, in the neighborhoods west of Central Avenue, and throughout the 91763 zip code to know exactly what hides behind those original tile walls. If you’re planning a bathroom remodel in Montclair, call us at (877) 752-4191 and we’ll walk you through what to expect before anyone swings a hammer.
Here’s the thing most contractors won’t tell you until the walls are already open: a Montclair bathroom remodel is rarely just a tile swap. The pre-1970s tract infrastructure that runs through this city means the real work often happens behind the drywall. We plan for that from day one.
Why Uptown ADU Builders Is Montclair’s Preferred Bathroom Remodeling Company
We approach every Bathroom Remodeling project in Montclair the same way: inspection first, allowances written into the contract, and every surprise priced and approved in writing before we touch it. Homeowners here tell us the same story repeatedly. They get a quote from a generalist contractor, work starts, and then the change orders pile up because nobody scoped the plumbing or the electrical first. That doesn’t happen on our jobs. Alan Drescher built this company to handle exactly what Montclair’s housing stock throws at you, because we’ve seen it enough times to know what’s coming.
Our Montclair customers consistently mention three things in their feedback. First, we show up with a camera scope for the drain lines before the demo crew even schedules. Second, the written change orders include photos and code references, so you’re never agreeing to a number without understanding why it changed. Third, the crew stays clean. Older Montclair homes have tight hallways and settled door frames, and our teams treat them accordingly.
We’re based in Yorba Linda, but Montclair is regular territory for us. We’re on site within a day for estimates, and our local knowledge means we already understand the city’s permit expectations, the typical framing conditions in 1950s – 70s tract stock, and which supply houses in the Inland Empire keep the right fixtures in stock.
Our Bathroom Remodeling Services in Montclair
Full Bathroom Gut and Remodel
This is what most Montclair homeowners need. The original 1950s – 70s bathrooms in this city were built with 4-inch tile set in mud, copper supply lines that are now corroded, and drain assemblies that have outlived their intended lifespan. We take it down to the studs, repair or replace the framing, run new supply and drain lines where needed, and rebuild with current code requirements. On a full gut, you’re also getting the chance to fix the waterproofing that was never done right the first time.

Shower and Tub Enclosure Replacement
Montclair’s original copper shower pans fail in predictable ways. Decades of water exposure, combined with the minerals in Inland Empire water, corrode the copper until pinhole leaks develop. By the time you see the water stain on the ceiling below, the subfloor damage is already done. We replace failed pans with modern waterproofing systems – bonded membranes or single-piece fiberglass bases depending on your budget – and we never install new tile over damaged framing.

Accessibility and Aging-in-Place Bathroom Upgrades
Many Montclair homeowners are remodeling the hall bath so aging parents can move in safely. That means curbless showers, grab bars anchored to blocking in the walls, wider door openings, and comfort-height toilets. The 1950s floor plans in Montclair’s tract homes often have narrow doorways and cramped layouts, but we’ve found that a well-planned reconfiguration can add real usable space without changing the footprint.

Vanity, Fixture, and Finish Upgrades
If the bones of your Montclair bathroom are still solid – meaning the drain scope came back clean and the framing hasn’t seen termite damage – then a finish-level upgrade makes sense. New vanity, quartz or solid-surface counters, modern faucets, and a better exhaust fan. We still check the shutoff valves and supply lines while we’re in there, because the galvanized supply pipes in Montclair’s older homes have a habit of failing right at the connection point when you disturb them.

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 Montclair
We’re a James Hardie – proficient builder, which means the same standard we apply to exterior cladding carries into the interior work we do. When your Montclair remodel requires moisture-resistant backer board, we use materials that don’t swell, delaminate, or feed mold. For homeowners evaluating a larger project – like building a detached ADU in the back of that flat, generous Montclair lot while we renovate the main-house bathroom – we bring hands-on familiarity with Abodu, Cover, and Dvele prefab systems. But for this page, the point is simpler: our Montclair bathroom remodels use fixture and finish brands we’d put in our own homes, and we keep turnaround tight because we know what the local supply houses carry.
Common Bathroom Remodeling Problems We See in Montclair Homes
- Corroded copper shower pans: The original pans in Montclair’s tract homes were rarely sloped correctly, so water sat against the copper and ate through it over decades. By demo day, the subfloor underneath is often fully rotten.
- Galvanized supply lines that snap at the threads: When we disconnect an old vanity or toilet, the galvanized pipe behind it frequently breaks. We plan for this by scoping supply runs before work starts and having replacement PEX or copper on hand.
- Cast-iron drains cracked at the closet bend: Montclair’s soil conditions and building age combine to produce this failure mode often. The drain looks fine from above, but the scope reveals a fracture waiting to leak sewage under the slab.
- Cloth-insulated wiring behind the walls: Once the drywall opens, the pre-1970s wiring often can’t pass current code. A new dedicated GFCI circuit for the vanity outlet and additional circuits for lighting and exhaust are standard upgrades on our Montclair jobs.
Pricing for Bathroom Remodeling in Montclair, CA
A small guest bath remodel in Montclair, where you’re keeping the same footprint and doing a finish-level update, runs $12,000 to $18,000. A mid-size hall bath with new tile, new tub or shower, new vanity, and updated electrical lands between $22,000 and $32,000. A primary bath with a layout change, curbless shower, and full reconfiguration starts at $35,000 and can reach $55,000 if we’re moving walls and re-routing drains. The biggest cost movers are: the condition of the cast-iron drains (a lateral replacement under the slab adds $4,000 to $8,000), the electrical scope (a panel upgrade if the existing panel is maxed out, $2,500 to $5,000), and the waterproofing system you choose. We price allowances into every contract so these numbers don’t blindside you. Call (877) 752-4191 for a free written estimate on your Montclair bathroom remodel.
We Also Serve Cities Near Montclair
Our bathroom remodeling team works throughout the eastern Inland Empire, including Claremont, Ontario, Upland, and La Verne. If you’re in one of these neighboring cities and want the same inspection-first approach we bring to Montclair, we’re happy to help. The housing stock in Claremont and Upland differs from Montclair’s tract-era neighborhoods, but the process stays the same: scope the drains, check the framing, and price the surprises before they happen.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair 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 Montclair
Because the walls hide what was never designed to meet current code. Montclair’s 1950s – 70s tract homes were built with galvanized supply lines, cast-iron drains, and cloth-insulated wiring that regularly fail inspection once they’re exposed. The extra costs come from bringing those systems up to code before we can close the wall back up. We handle this by writing an allowance into your contract for exactly these discoveries, and we never proceed without your written approval. Call (877) 752-4191 and we’ll explain what to expect at your specific property.
Yes, if you’re moving any plumbing, electrical, or structural framing. A finish-level update – new vanity, new tile over a sound pan, new fixtures without moving supply lines – doesn’t require a permit in Montclair. But a full gut where we open walls, move the shower drain, or replace wiring does. We pull all permits ourselves, and we pass inspections before the walls are closed. That’s how documentation protects the homeowner when it’s time to sell a Montclair home.
We photograph it, write a change order with code references, get your approval in writing, and then fix it before framing goes back up. On a recent job off Monte Vista Avenue, our crew opened a 1962 hall bath and found the cast-iron drain already fractured at the closet bend, plus cloth-insulated wiring behind the vanity. We documented both issues, got the homeowner’s sign-off, and installed a new drain and a dedicated GFCI circuit before closing the walls. The final inspection passed on the first try because everything was permitted and documented from day one.
The condition of the drain lines. Montclair’s older tract homes frequently have cast-iron drains that have been quietly failing for decades. A scope that shows a fractured closet bend or a collapsed section under the slab adds real money to the job. That’s why we scope every drain before demolition starts. If the scope comes back clean, your quote holds. If it doesn’t, you know the number before we break tile, not after. Get a written estimate at (877) 752-4191.
Sometimes, but not perfectly. The original 4-inch tile used in Montclair’s tract homes was discontinued decades ago, and even close color matches read as slightly off in natural light. What we do is either salvage and reuse matching tile from the same job (if enough arrives intact during careful demo) or help you select a modern tile that complements the era of the home without trying to fake a restoration. For fixtures, we can source period-appropriate styles that match the home’s original character without sacrificing modern water efficiency.
If you’re in the 91763 zip code and tired of guessing what’s behind your bathroom walls, call Alan Drescher and the team at Uptown ADU Builders at (877) 752-4191. We’ll scope your drains, check your framing, and give you a written estimate that actually reflects what a Montclair remodel costs. No surprises. Just a bathroom that works for the next fifty years.
Written by Alan Drescher, Owner at Uptown ADU Builders, serving Montclair and the eastern Inland Empire.