Trusted Bathroom Remodeling for Brea Homeowners
A full bathroom remodel in Brea typically runs $18,000 to $45,000 depending on the age of the home, the condition of the plumbing rough-in, and whether you’re adding square footage or working within the existing footprint. That’s the honest range we see across Olinda Ranch, Country Hills, and the original 1960s tracts off Central Avenue, where cast-iron drain lines and outdated venting often add scope once the walls come open. At Foundry ADU Builders, we handle Bathroom Remodeling in Brea as an integrated part of the home – not a sideline service bolted onto a general contracting operation.
Rob Cafferty leads our team in Brea, and we approach every bathroom project the same way we approach ADU construction: direct answers, honest trade-offs, and a written scope that matches the house in front of us. Call (866) 251-7857 to schedule a free estimate, and we’ll walk the space with you before quoting anything.
Key Takeaways:
- Brea bathroom remodels run $18,000 – $45,000 for a typical full renovation; smaller refreshes start lower.
- We handle plumbing relocations, shower waterproofing, tile, cabinetry, and finish carpentry under one contract.
- Foundry is ADU-first – which means we’re used to fitting high-function bathrooms into tight floor plans, a skill that translates directly to older Brea homes with awkward layouts.
- Free estimates. Written line-item quotes. No change orders without your sign-off.
What Our Bathroom Remodeling Service Includes
Most Brea homeowners come to us with one of two situations: either the bathroom is functional but dated and they want a refresh, or it’s failing – water damage, cracked grout, a shower pan that’s been leaking into the subfloor for years. We also handle Fullerton Bathroom Remodeling with the same approach. We scope both honestly. Here’s what a bathroom remodel with Foundry covers.
Full Bathroom Gut and Rebuild
A gut remodel means we demo down to the studs, inspect the framing and subfloor, replace what’s compromised, and rebuild from the rough-in up. In Brea homes built before 1980, it’s common to find undersized joists, old galvanized supply lines, and vent stacks that don’t meet current Orange County code. We handle all of it – plumbing relocations, electrical upgrades for GFCI circuits, insulation, drywall, and waterproofing. The result is a bathroom built to modern standards, not a cosmetic layer over old problems.
Shower and Tub Replacement
We replace fiberglass tub-shower inserts with tiled showers, convert tubs to walk-in showers, or install new soaking tubs depending on how you actually use the space. Waterproofing is where we spend the most effort: we use Schluter Kerdi systems or equivalent membrane waterproofing behind every tiled surface, because a shower that leaks into the wall cavity is a five-figure problem hiding behind a very nice-looking tile job. We also handle glass enclosure installation, niche framing, and bench construction.
Tile and Flooring
Floor prep matters more than the tile you pick. In Brea’s older slab-on-grade homes, we often find moisture intrusion through cracks in the concrete, which means we test and seal before laying tile. In raised-foundation houses, we check for deflection in the floor joists – too much bounce and the grout will crack within a year. We install ceramic, porcelain, and luxury vinyl plank, and we’ll tell you honestly which one belongs in the space you have, not the space in a magazine photo.
Vanity and Cabinetry
We replace vanities, medicine cabinets, and custom storage with units sized to the actual wall dimensions of your bathroom. Brea’s mid-century homes often have narrow bathrooms where a standard big-box vanity creates a traffic jam. We do custom cabinet work in-house when the layout calls for it – built-ins around existing plumbing, floating vanities, linen towers that use the dead space over a toilet. No particleboard boxes from a big-box store unless you specifically ask for the budget option.
Plumbing and Electrical Rough-In
Behind every good bathroom is a rough-in done right. We relocate drain lines when you’re moving a toilet or shower, replace old shutoff valves with quarter-turn ball valves, and run dedicated 20-amp circuits for bathroom outlets – which is code in Orange County and something a lot of old Brea homes never got. We pull permits on every job that needs them, and the work gets inspected. No exceptions, no “we can skip the permit” offers.
Bathroom Remodeling for ADUs
This is where Foundry is different. A bathroom inside an ADU is a compressed space problem – you’re fitting a shower, toilet, and sink into 25 to 40 square feet and it still has to feel like a place an adult wants to use. We design and build ADU bathrooms for all the factory-built and panelized units we place, including Boxabl and Plant Prefab interiors that need finish work after the shell arrives. The same waterproofing, plumbing, and tile standards apply, just scaled down and fitted precisely.
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.
Brands We Service for Bathroom Remodeling
Because Foundry builds across the full spectrum of construction methods – factory-built, panelized, and traditional stick-built – our bathroom crews work inside a broader range of structures than a typical Brea remodeling company. We finish bathrooms inside Boxabl units, where the plumbing chases are pre-routed and the margins are tight; we know exactly which wall cavities carry supply lines and where the shower drain sits relative to the module seams. That brand-specific knowledge saves you time and prevents expensive mistakes during finish-out.
We also work with Plant Prefab projects, where the bathroom modules arrive with factory waterproofing and our job is precision tile work, fixture installation, and custom cabinetry that matches the design intent of the unit. And for homeowners converting a Tuff Shed into a legitimate ADU, we handle the full bathroom build-out – slab coring for drains, supply line runs, ventilation, and code-compliant egress. Whether your bathroom is inside an Abodu unit, a Dvele panelized home, or a 1968 Brea rancher, the same crew and the same standards apply.
Signs You Need Bathroom Remodeling Right Now
- Water stains on the ceiling below the bathroom. This almost always means the shower pan or drain assembly has failed and water is running into the subfloor. In Brea’s two-story neighborhoods like Olinda Ranch, you’ll spot the stain in the room below before you smell anything. Waiting turns a $1,500 pan replacement into a $8,000 floor joist and drywall repair.
- Grout that stays dark or crumbles in patches. Grout failure isn’t cosmetic – it’s the first entry point for water into the wall. Once the wallboard behind the tile gets wet, it loses structural strength and mold starts. If you can pick grout out with a fingernail, the waterproofing has already been compromised.
- Soft spots in the floor around the toilet or tub. A bouncing or spongy floor indicates subfloor rot from a long-term slow leak. In slab homes, you might see efflorescence – a white powdery residue – on the concrete edge. Both mean the leak has been active for months or years.
- Your bathroom is original to a pre-1980 Brea home. These houses were built with 1.5-inch galvanized supply lines that clog from the inside and cast-iron drain lines that rust at the bottom. If you’re already seeing low pressure at the shower head or slow drains that snaking doesn’t fix, a remodel that replaces the rough-in is cheaper than three separate repair visits.
- Mold on the walls or ceiling that keeps coming back. Mold is a ventilation problem, not a cleaning problem. If your bathroom lacks a proper exhaust fan or the existing one vents into the attic instead of outside – common in older Brea homes – every shower feeds the problem. A remodel lets us install a correctly vented fan and rebuild the affected surfaces.
Our Bathroom Remodeling Process – Step by Step
We don’t hand you a vague timeline and then disappear for a month. Here’s exactly how a bathroom remodel with Foundry ADU Builders plays out in Brea, from the first phone call to the final walkthrough.
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Free on-site consultation and measurement. Rob or a senior project lead visits the home, takes precise measurements, checks access to the crawlspace or slab, and maps the existing plumbing and electrical. We talk through what you want, what you actually need, and what the house will support without major structural work. This visit costs nothing and you get a written assessment before any numbers appear.
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Written line-item quote within 5 business days. You get a scope of work broken down by category – demo, rough-in, waterproofing, tile, fixtures, cabinetry, finish work – with material allowances and labor separated. No “allowance” games where we bid low and change-order high. The quote you see is the number we build to unless you change something mid-project.
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Permit application and material selection. We file the permit with the City of Brea building department and handle plan review corrections. While that moves through, we take you through tile, fixture, and vanity selections – at suppliers in Brea and Fullerton where you can touch and see products rather than ordering blind from a catalog screenshot.
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Demo and rough-in. We protect the rest of your home with zip-wall containment and floor protection, then demo to the studs where scope calls for it. Plumbing and electrical rough-in happens next, followed by the first inspection. We don’t cover anything up until the inspector signs off – that’s the only way to know the work inside your walls is correct.
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Waterproofing, tile, and finish work. We install the waterproofing membrane, flood-test the shower pan where applicable, then tile and grout. Cabinetry, counters, glass, and fixtures follow. You get a walkthrough with a punch list, and we don’t call the job done until every item on that list is resolved.
How Much Does Bathroom Remodeling Cost in Brea?
A typical full bathroom remodel in Brea runs $18,000 to $45,000 depending on whether you’re relocating plumbing, the age of the house, and the level of finish you choose. A shower replacement with tile and glass usually lands between $8,000 and $15,000. A cosmetic refresh – new vanity, toilet, lighting, mirrors, and paint – starts around $6,000. If you’re adding a bathroom to an ADU or finishing the bathroom inside a factory-built unit like a Boxabl, the cost depends on whether the unit arrived with rough-ins done or we’re coring a slab and running new drains.
What moves the price in Brea specifically: the age of the home (pre-1980 houses often need new supply and drain lines), whether your floor is slab or raised, and whether the existing layout stays put or you’re moving the toilet or shower across the room. Tile choice moves the number too – a $3 per square foot ceramic looks fine and lasts decades; a $40 per square foot hand-glazed porcelain is a different budget altogether. We’ll give you honest guidance on where to spend and where to save.
Every estimate we write is free and itemized. You’ll see exactly what each line item costs and why. Call (866) 251-7857 to schedule yours – it takes about an hour on site and you’ll have the number in hand within a week.
Bathroom Remodeling Near Brea – Our Service Area
Foundry ADU Builders serves Brea and the surrounding north Orange County communities. We’re regularly on site in La Habra, Placentia, Fullerton, Yorba Linda, and Buena Park. For larger ADU-integrated projects, we work throughout Anaheim, Villa Park, Orange, Stanton, La Palma, and Garden Grove. If you’re in north Orange County and wondering whether we’ll come out, call us – the answer is almost certainly yes, and the estimate is free either way. If you’re still exploring options, start with our home page to see the full scope of what we build.
Serving Brea, CA — Our Local Coverage Area
We’re based in the Brea area and know this community well, and we also provide Bathroom Remodeling in Yorba Linda. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
Frequently Asked Questions – Bathroom Remodeling in Brea
Bathroom remodeling is the process of replacing or upgrading the structural, plumbing, electrical, and finish elements of a bathroom – from a cosmetic refresh (paint, fixtures, vanity) to a full gut-and-rebuild that replaces everything down to the wall studs. In Brea, the scope often depends on the age of the home: pre-1980 houses commonly need new supply and drain lines, while newer homes can often be remodeled without touching the rough-in. We scope each project honestly based on what’s actually needed, not what a salesperson wants to sell. Call (866) 251-7857 to have us walk your bathroom and tell you which category yours falls into.
A full bathroom remodel in Brea typically takes 3 to 6 weeks from demo to final walkthrough, depending on scope, inspections, and material lead times. A shower replacement or refresh can be done in 1 to 2 weeks. Permit review with the City of Brea adds time up front, which is why we file early and handle plan corrections ourselves. We’ll give you a written schedule with honest buffer time before we start – no surprise month-long gaps.
Most bathroom remodels in Brea fall between $18,000 and $45,000 for a full renovation. Smaller scopes – shower replacements, vanity swaps, flooring – run $6,000 to $15,000 depending on materials. The specific look and layout you want determines your number; get a free itemized quote by calling (866) 251-7857 and we’ll price your exact project.
Yes. Foundry ADU Builders finishes bathrooms inside factory-built and panelized units from brands including Boxabl, Plant Prefab, and others. If the unit arrived with rough-ins, we handle tile, fixtures, cabinetry, and glass. If it didn’t, we run plumbing and electrical from the main house or new service. We’re an ADU-first contractor, which means we’re not figuring out modular construction for the first time on your property. Call (866) 251-7857 for a free estimate on ADU bathroom finish-out.
If you have an active water leak, a failed shower pan, or a burst supply line in a bathroom, call us at (866) 251-7857 and we’ll assess the situation as quickly as our schedule allows. We don’t claim 24/7 emergency service on construction work because that’s not honest – but we do prioritize active leaks and water damage, because waiting turns a repair into a remodel. For everything else, we schedule within a reasonable window and stick to it.
We stand behind our workmanship with a written warranty on labor and installation, and every material we install carries its own manufacturer warranty – tile, fixtures, cabinetry, and waterproofing membranes. We don’t offer a generic “lifetime” promise because that’s marketing talk; what we do offer is a clear written warranty document that says exactly what’s covered and for how long. Ask about the specific coverage when we quote your project.
You don’t need to do much. We protect floors and route dust with containment barriers, which means your living spaces stay livable during the build. The main thing to plan for is water shutoff during the plumbing phases and limited access to that bathroom for the duration. If you have a second bathroom, you’re set. If not, let us know at the start and we’ll schedule the work in stages so you’re never without a working toilet longer than necessary – this is common in Brea’s single-bathroom homes.
Schedule Your Bathroom Remodeling Service in Brea Today
Ready to get a real number for your Brea bathroom remodel? Call (866) 251-7857 to schedule a free on-site estimate. Rob Cafferty and the Foundry team will walk the space, answer your questions honestly, and give you a written line-item quote. No pressure, no obligation, and no pricing games. Whether you’re refreshing a dated hall bath in Country Hills or finishing out the bathroom in a new Boxabl ADU, we’ll give you the straight answer on what it costs and what it takes.
Written by Rob Cafferty, Owner at Foundry ADU Builders, serving Brea and surrounding Orange County communities.