The Complete Bathroom Renovation Checklist for LA Homeowners
A bathroom is small, but it's the most technically demanding room in the house to remodel, plumbing, waterproofing, ventilation, tile, and electrical all packed into a few square feet, every one of them unforgiving if done wrong. A leak behind new tile or a fan that doesn't vent properly can cost more to fix than the original remodel. This checklist walks through every decision in the order it should happen, so nothing gets missed before demo day.
1. Set a realistic budget
In Los Angeles, a mid-range full bathroom remodel typically runs $25,000-$45,000, with primary-suite baths and high-end finishes going well above that. A powder room refresh costs far less. Decide your number first, then build the scope to fit it, not the other way around. Set aside 10-15% as a contingency for the hidden conditions older LA homes love to hide behind the walls.
2. Lock the layout
- Keeping fixtures where they are is the cheapest path, no re-plumbing.
- Moving the toilet, shower, or vanity means relocating drains and supply lines, which adds cost but can transform a cramped bath.
- Curbless showers, double vanities, and freestanding tubs all have space and plumbing implications, decide now, not mid-build.
3. Handle permits and code
In LA, you need a permit any time you move plumbing or electrical or alter the structure. Code also drives details people forget: GFCI outlets, an exhaust fan vented to the exterior (not the attic), proper shower waterproofing, and tempered glass. A licensed contractor pulls the permits and schedules inspections so these are handled correctly the first time.
4. Choose materials before demo
Every finish selection should be made and ordered before demolition starts. Waiting to 'decide later' is the top cause of stalled bathroom projects, because tile and vanities can carry weeks of lead time. Your selection list:
- Floor and wall tile (and whether you want heated floors, decide before the subfloor goes in)
- Shower system: pan, glass, niche, valve, and showerhead
- Vanity, countertop, and sink
- Toilet, tub (if any), faucets, and hardware finish
- Lighting, exhaust fan, and mirror
- Paint and grout color
5. Understand the order of work
The sequence is what keeps a bathroom watertight and code-compliant. Skipping or rushing a step, especially waterproofing, is where cheap remodels fail within a year.
- Demolition and haul-out
- Rough plumbing and electrical, then inspection
- Backer board and waterproofing membrane (the step that protects everything behind the tile)
- Tile setting for floor and shower
- Vanity, toilet, and fixture installation
- Glass, mirror, lighting, and hardware
- Paint, final inspection, and punch list
6. Plan for ventilation and lighting
Two details separate a bathroom that ages well from one that grows mold and looks flat: a properly sized exhaust fan ducted to the outside, and layered lighting (overhead plus vanity-level, ideally on a dimmer). Both are cheap to do during the remodel and expensive to add later.
7. Vet your contractor
Confirm an active California (CSLB) license, current insurance, and recent local bathrooms they actually built. Ask specifically how they waterproof showers, the answer tells you whether they build baths to last or just to look good on day one.
Oran Remodeling has renovated bathrooms across Los Angeles and the San Fernando Valley for over 35 years. We handle design, permits, waterproofing, and finish work in-house, on a fixed itemized price, so your checklist becomes our responsibility to execute, down to the last tile.
