California Bathroom Remodeling.
LA bathrooms are usually small, almost always over an older slab or first-story floor, and almost always hiding a plumbing surprise. We do the demo carefully, repipe what needs repiping, get the waterproofing right, and land tile, stone, lighting, and fixtures that read luxury without leaking in three years.
Bay Area bathrooms are usually small, almost always hiding a plumbing surprise, and often over a second-story floor in an SF or Oakland row house. We demo carefully, repipe what needs repiping, get the waterproofing right, and land tile, stone, lighting, and fixtures that read luxury without leaking in three years.
Los Angeles
$28K – $85K
Walk-in shower glass, slab counters, and moving plumbing fixtures push toward the top of the band.
Timeline — Plan on 2–3 weeks for design + permit, then 4–6 weeks on-site.
Los Angeles Bathroom Remodeling →San Francisco Bay Area
$36K – $105K
Walk-in shower glass, slab counters, moving plumbing fixtures, and joist repair push toward the top of the band.
Timeline — Plan on 3 weeks for design + permit, then 5–7 weeks on-site.
San Francisco Bay Area Bathroom Remodeling →What we actually build inside bathroom remodeling.
Every component below has its own field page — materials, California code notes, cost bands, common mistakes, and FAQ.
Scope — what we deliver.
- Demo, slab inspection, sub-floor repair if needed
- Copper or PEX repipe, drain re-route, shut-off valves
- Schluter or hot-mopped pan, waterproofing, niche framing
- Tile, stone slab, glass enclosure, vanity, mirror, lighting
- Vent fan, dedicated circuits, GFCI, Title 24 compliance
Permits look different in LA vs the Bay.
Los Angeles — permit notes
- Moving plumbing fixtures in an LA bath (relocating a toilet, adding a shower) triggers a plumbing permit and inspection — like-for-like swaps do not.
- Pre-1978 homes need lead/asbestos clearance before demo when the budget is over $1,000 — we handle the abatement coordination.
- Hillside homes with crawl-space drain runs sometimes need a sewage ejector pump for a basement-level bath.
- Waterproofing membranes have to meet ANSI A118.10 for permitted showers — Schluter Kerdi and hot-mopped pans both qualify when installed correctly.
Bay Area — permit notes
- Moving plumbing fixtures in a Bay Area bath triggers a plumbing permit and inspection — like-for-like swaps do not.
- Pre-1978 SF and Oakland row houses commonly need lead/asbestos clearance before demo over $1,000.
- Second-story bath remodels in SF/Oakland row houses sometimes uncover sister-joist rot — adds 1–2 weeks to the schedule.
- Waterproofing membranes have to meet ANSI A118.10 for permitted showers — Schluter Kerdi and hot-mopped pans both qualify.
How we think about bathroom remodeling.
Interior remodels live or die in the rough-in. The work nobody sees — venting, framing corrections, blocking, electrical layout, plumbing slope — is what makes a kitchen feel solid in year 10. We refuse to skip a wall opening if it lets us actually inspect what's behind it.
We sequence trades around moisture and dust, not the other way around. Tile + waterproofing get their own dry day. Cabinets get installed against a perfectly plumb, perfectly painted wall — never the reverse. Floors go in after cabinets so the dishwasher doesn't trap them.
The detail that separates a $40K kitchen from a $120K kitchen is rarely the cabinet brand. It's the alignment: drawer-to-drawer reveals, perfectly equal panel returns, integrated lighting, hidden hinges, soft-closing everything. We obsess over alignment because that's what the eye reads as quality.
The schedule, written out.
Week 0
Measure + design intent
Laser site survey, photo as-builts, plumbing + electrical investigation, scope-of-work + budget tier alignment.
Week 1–3
Design + selections
Plans, elevations, cabinet shop drawings, tile + stone + appliance + plumbing selections locked.
Week 3–6
Permits + procurement
City permit for structural / MEP work, lead times locked on cabinets, stone slabs reserved.
Week 6–8
Demo + rough
Selective demo, framing changes, plumbing + electrical rough-in, HVAC adjustments, inspections.
Week 8–10
Drywall + paint primer
Insulation where opened, drywall, level-5 finish where appropriate, primer coat.
Week 10–12
Tile + cabinets
Waterproofing, tile, cabinet installation, counter template the day cabinets are level.
Week 12–14
Stone + plumbing + appliance
Stone install, plumbing trim, appliances installed and tested, lighting trim.
Week 14–16
Punch + close-out
Touch-up paint, hardware, deep clean, owner walk, warranty registration, manuals binder.
Materials & assemblies.
| Component | Default spec | Why |
|---|---|---|
| Cabinet boxes | ¾" plywood, all-plywood or full-overlay framed, soft-close hardware, dovetail drawers | Particle-board boxes save 10–18% and fail in year 6 at the sink base. |
| Countertops | Quartz (Caesarstone, Cambria, Silestone) or natural stone with proper sealing | Quartz wins on durability; natural stone wins on character. |
| Plumbing supply | Type-L copper or PEX-A home-run manifold | PEX-A with a manifold is faster, freeze-tolerant, and easier to repair. |
| Waterproofing (showers) | Schluter-Kerdi or equivalent sheet membrane over cement board | Liquid-applied membranes work, but sheet is more forgiving on a 14-day install schedule. |
| Underlayment + flooring | Engineered hardwood ≥ 4mm wear layer, or porcelain tile rated PEI 4+ | Solid hardwood + radiant + slab = cupping; engineered is the right choice in CA climates. |
| Range hood | External-vented, sized at 100 CFM per linear foot of cooktop | Recirculating hoods don't move grease or moisture — never spec them on a gas range. |
Hidden costs we flag up front.
| Line item | Range | When it hits |
|---|---|---|
| Knob-and-tube or aluminum rewire | $8K–$28K | homes built pre-1970, opened walls reveal it |
| Galvanized supply replacement | $6K–$24K | low pressure + rusty water tells you before demo |
| Asbestos / lead abatement | $2K–$12K | popcorn ceilings + pre-1978 paint disturbed |
| Subfloor replacement | $3K–$14K | moisture damage at sink, dishwasher, or exterior wall |
| HVAC re-balance | $1.5K–$6K | new layout changes register count or duct geometry |
cheaper alternatives
What we'd consider — and what we wouldn't.
Cabinet refacing
30–45% cheaper, but boxes still date the kitchen and you can't change the layout.
IKEA + third-party fronts (Semihandmade etc.)
Good budget play under $50K total, but limited depth + lead times can derail the schedule.
Big-box installer
Cheaper labor, but subs rotate weekly — punch lists never close cleanly.
pitfalls — takeover-job patterns
Mistakes to avoid.
- Demoing before permits are in hand — a stop-work order resets the schedule by 4–8 weeks
- Locking finishes after demo starts — every selection change becomes a change order
- Skipping a moisture meter on the subfloor — laying new flooring over 18%+ moisture guarantees a callback
- Under-spec'ing the range hood — California gas-cooktop ventilation requirements are stricter than most installers think
Bathroom Remodeling — Los Angeles.
Westside Bathroom Remodeling
Local scope + permit →
Eastside / NELA Bathroom Remodeling
Local scope + permit →
San Fernando Valley Bathroom Remodeling
Local scope + permit →
South Bay Bathroom Remodeling
Local scope + permit →
Hills & Canyons Bathroom Remodeling
Local scope + permit →
San Gabriel Valley Bathroom Remodeling
Local scope + permit →
Ventura County Bathroom Remodeling
Local scope + permit →
Orange County Bathroom Remodeling
Local scope + permit →
Inland Empire Bathroom Remodeling
Local scope + permit →
Bathroom Remodeling — Bay Area.
Oakland Bathroom Remodeling
Local scope + permit →
Berkeley Bathroom Remodeling
Local scope + permit →
Richmond Bathroom Remodeling
Local scope + permit →
San Jose Bathroom Remodeling
Local scope + permit →
Sunnyvale Bathroom Remodeling
Local scope + permit →
Palo Alto Bathroom Remodeling
Local scope + permit →
San Francisco Bathroom Remodeling
Local scope + permit →
Fremont Bathroom Remodeling
Local scope + permit →
Walnut Creek Bathroom Remodeling
Local scope + permit →
Livermore Bathroom Remodeling
Local scope + permit →
In short.
- How much does a bathroom remodel cost in Los Angeles?
- Most LA bathroom remodels land between $28K and $85K. Walk-in shower glass, slab counters, and moving plumbing fixtures push toward the top.
- Do I need a permit to remodel a bathroom in LA?
- Yes — any work that touches plumbing, electrical, or structural triggers an LADBS permit. A like-for-like fixture swap does not.
- How long is a bath remodel unusable?
- Plan on 4–6 weeks of the bath being completely offline. We sequence so most of the demo and rough is in the first two weeks, then tile and finish.
- How much does a bathroom remodel cost in the Bay Area?
- Most Bay Area bathroom remodels land between $36K and $105K — roughly 25–30% above LA. Walk-in shower glass, slab counters, and joist repair push toward the top.
- Do I need a permit to remodel a bathroom in the Bay Area?
- Yes — any work that touches plumbing, electrical, or structural triggers a city permit. A like-for-like fixture swap does not.
More we build.
ADU Builder
California pillar →
Garage Conversion
California pillar →
JADU Builder
California pillar →
Kitchen Remodeling
California pillar →
Home Additions
California pillar →
Whole-Home Remodeling
California pillar →
Detached ADU
California pillar →
Roofing
California pillar →
Concrete & Flatwork
California pillar →
Foundation
California pillar →
Seismic Retrofit
California pillar →
New Construction
California pillar →
Multifamily Remodeling
California pillar →
Commercial Tenant Improvement
California pillar →
Framing & Carpentry
California pillar →
Siding & Stucco
California pillar →
Windows & Doors
California pillar →
Decks & Patios
California pillar →
Electrical & Panel Upgrades
California pillar →
Plumbing & Repipes
California pillar →
HVAC & Heat Pumps
California pillar →
Interior & Exterior Painting
California pillar →
Drainage & Waterproofing
California pillar →
Got a bathroom remodeling project in mind?
Send us the address. We'll pull local zoning, setbacks, and bathroom remodeling feasibility before you spend on drawings.
Start a project →