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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.

  1. Week 0

    Measure + design intent

    Laser site survey, photo as-builts, plumbing + electrical investigation, scope-of-work + budget tier alignment.

  2. Week 1–3

    Design + selections

    Plans, elevations, cabinet shop drawings, tile + stone + appliance + plumbing selections locked.

  3. Week 3–6

    Permits + procurement

    City permit for structural / MEP work, lead times locked on cabinets, stone slabs reserved.

  4. Week 6–8

    Demo + rough

    Selective demo, framing changes, plumbing + electrical rough-in, HVAC adjustments, inspections.

  5. Week 8–10

    Drywall + paint primer

    Insulation where opened, drywall, level-5 finish where appropriate, primer coat.

  6. Week 10–12

    Tile + cabinets

    Waterproofing, tile, cabinet installation, counter template the day cabinets are level.

  7. Week 12–14

    Stone + plumbing + appliance

    Stone install, plumbing trim, appliances installed and tested, lighting trim.

  8. Week 14–16

    Punch + close-out

    Touch-up paint, hardware, deep clean, owner walk, warranty registration, manuals binder.

Materials & assemblies.

ComponentDefault specWhy
Cabinet boxes¾" plywood, all-plywood or full-overlay framed, soft-close hardware, dovetail drawersParticle-board boxes save 10–18% and fail in year 6 at the sink base.
CountertopsQuartz (Caesarstone, Cambria, Silestone) or natural stone with proper sealingQuartz wins on durability; natural stone wins on character.
Plumbing supplyType-L copper or PEX-A home-run manifoldPEX-A with a manifold is faster, freeze-tolerant, and easier to repair.
Waterproofing (showers)Schluter-Kerdi or equivalent sheet membrane over cement boardLiquid-applied membranes work, but sheet is more forgiving on a 14-day install schedule.
Underlayment + flooringEngineered hardwood ≥ 4mm wear layer, or porcelain tile rated PEI 4+Solid hardwood + radiant + slab = cupping; engineered is the right choice in CA climates.
Range hoodExternal-vented, sized at 100 CFM per linear foot of cooktopRecirculating hoods don't move grease or moisture — never spec them on a gas range.

Hidden costs we flag up front.

Line itemRangeWhen it hits
Knob-and-tube or aluminum rewire$8K–$28Khomes built pre-1970, opened walls reveal it
Galvanized supply replacement$6K–$24Klow pressure + rusty water tells you before demo
Asbestos / lead abatement$2K–$12Kpopcorn ceilings + pre-1978 paint disturbed
Subfloor replacement$3K–$14Kmoisture damage at sink, dishwasher, or exterior wall
HVAC re-balance$1.5K–$6Knew 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.

Bathroom Remodeling — Bay Area.

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.

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.

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