Los Angeles Bathroom Remodeling Contractor
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.
Scope of work.
- 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
What changes about this in Los Angeles.
- 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.
Los Angeles cost band — 2026
$28K – $85K
Walk-in shower glass, slab counters, and moving plumbing fixtures push toward the top of the band.
Los Angeles timeline
Plan on 2–3 weeks for design + permit, then 4–6 weeks on-site.
How we think about this work in Los Angeles.
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.
Every project varies, but the cadence below holds for most bathroom remodeling jobs in Los Angeles. We publish it on purpose — the schedule is the contract.
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.
These are the defaults we write into the contract before you change a thing. They're the floor, not the ceiling — every spec can be upgraded; none should be downgraded without a serious reason.
| 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.
A Los Angeles project budget that ignores the items below is a budget that will go over. We surface them in the first walk-through — not after a wall is open.
| 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 |
Why building in Los Angeles is its own thing.
Climate & building stock
Greater Los Angeles is a warm-summer Mediterranean climate (Köppen Csa) with long dry summers, Santa Ana wind events, brushfire exposure on the WUI, and an annual rainfall window concentrated between November and March. Building stock skews to single-story stucco bungalows, post-war ranches, and 1960s–80s wood-frame on raised perimeter or slab — many of which were built before today's Title 24 envelope and ventilation rules.
Seismic & soils
LA sits on the Newport-Inglewood, Santa Monica, Hollywood, and Sierra Madre fault systems. Soft-story apartments and pre-1980 cripple-wall single-family homes are the two biggest seismic liabilities; the Soft-Story Mandatory Retrofit Program (Ordinance 183893) is the framework most multifamily clients deal with, and FEMA P-50 / Brace+Bolt is the standard for single-family.
Code & amendments
City of LA uses the 2023 California Building Code / CRC / CMC / CPC / CEC + 2022 Title 24 Part 6, layered with LA-specific amendments and the LA Green Building Code. ADU rules follow LAMC §12.22 A.33 plus statewide AB 671 / SB 9 / SB 1211 updates current for 2026.
Jurisdictions we permit in
- City of Los Angeles — LADBS (most of the basin)
- LA County Public Works — Building & Safety (unincorporated)
- Beverly Hills, Santa Monica, Culver City, Pasadena, Glendale, Burbank — independent building departments
- Long Beach Development Services + South Bay coastal cities
- Hillside Ordinance review for many Westside / Hollywood Hills parcels
- Plan-check turnaround
- 8–14 wk standard, 3–4 wk Express
- Building-permit fee basis
- ≈ 1.1–1.6% of valuation
- School-facility fee (Level 1)
- $5.17 / sqft residential — 2026
- Sewer-capacity charge
- $3,800–$7,200 per new unit
- Typical ADU all-in
- $320K–$520K
LADBS Express Permit for qualifying ADUs
plus plan check, school, sewer-cap, arts
SAB-adjusted annually
LASAN — varies by basin
detached, 600–900 sqft, turnkey
What the city charges before we lift a hammer.
| Fee / soft cost | Range | Trigger |
|---|---|---|
| Building permit + plan check (LADBS) | $4K–$14K | scales with construction valuation |
| School-facility fee (LAUSD or local) | $5.17/sqft new conditioned area | additions + ADUs only |
| Sewer-capacity charge (LASAN) | $3.8K–$7.2K per new dwelling | new unit creating a sewer connection |
| DWP service upgrade (200A → 400A) | $6K–$22K | heat pump + EV + ADU combined load |
| Arts development fee | 0.4% of project cost | ≥ $500K valuation, single-family |
| Geotech / soils report | $3.5K–$9K | hillside, expansive soils, deep additions |
| Surveyor for setbacks / ALTA | $2.5K–$6K | close-to-line ADUs, lot splits |
Los Angeles — inspection cadence
From permit to occupancy.
- 1.Pre-construction: permit issued, NOC posted, dust + erosion control set
- 2.Underground: plumbing + electrical + grounding before slab pour
- 3.Foundation: rebar + hold-downs + anchor bolts before concrete
- 4.Framing: rough framing + shear nailing + strap inspection (often combined)
- 5.Rough MEP: rough electrical, plumbing top-out, mechanical, T-24 envelope verification
- 6.Insulation + drywall: HERS verification of duct leakage + envelope tightness
- 7.Final: building, electrical, plumbing, mechanical, planning — same-day clustering preferred
Los Angeles — how locals fund this
Financing instruments.
- HELOC against primary residence — most common ADU funding (60–80% CLTV)
- Cash-out refinance — preferred when current first mortgage rate is above market
- Renovation construction loan (one-time-close 7/1 ARM)
- RenoFi / ADU-specific second loans — based on after-completion appraisal
- Property-tax-assessed PACE financing for HVAC, panel, envelope upgrades
cheaper alternatives & their tradeoffs
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 — what we fix on takeover jobs
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
- Skipping a soils report on hillside lots — Hillside Ordinance triggers caissons and import fill that double foundation cost
- Under-sized service panels — most pre-1990 homes are 100A, not enough for ADU + heat pump + EV
- Mis-reading R1 vs R1V1 zoning — height + FAR rules vary by hillside designation
- Ignoring the LADWP separate-meter rule when renting the ADU long-term
- Building over a sewer easement — requires LASAN encroachment letter before plan check
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.
- Can I convert my tub to a walk-in shower?
- Almost always yes. A walk-in shower needs a sloped pan, a curb or curbless drain, waterproofing, and glass — we confirm in the feasibility note.
Los Angeles areas we cover.
Stay in the same trade
More Los Angeles interior remodeling services.
Same service, other region
Bathroom Remodeling across California.
Authority sources
Los Angeles bathroom remodeling — official resources.
Primary sources we cross-reference on every project — agencies, utilities, and code bodies whose decisions actually move your permit and budget.
LADWP
San Francisco Public Utilities Commission
East Bay Municipal Utility District
BSC
Los Angeles Department of Building & Safety
ePlanLA — every City of LA residential permit goes through this portal.
LADBS
Pre-calculate plan-check and permit fees to within a few hundred dollars.
Santa Monica Building & Safety
City of Santa Monica
Ready to scope a Los Angeles bathroom remodeling project?
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Talk to the Los Angeles desk →Bathroom Remodeling in Los Angeles: book the on-site this week.
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