Plumbing is the critical path in any bathroom remodel. Tile can't be set until the shower pan drain is roughed in at the right height. Vanities can't be placed until supply and drain rough-ins are in the correct position. A toilet can't be set until the flange is at the right height relative to the finished floor. When plumbing rough-in is done wrong — wrong height, wrong position, wrong drain size — everything that follows is wrong too. We take that responsibility seriously, coordinating directly with your general contractor or tile installer to get the rough-in right before anyone else starts their work.
Common bathroom remodel plumbing tasks we handle: relocating a toilet drain (moving the flange position), moving a vanity drain and supply to a new location, converting a tub-shower combo to a walk-in shower with a new linear drain, installing a custom tile shower pan with a properly sloped drain, installing new thermostatic or pressure-balance shower valves, moving or adding a dedicated supply for a freestanding tub filler, updating supply lines from galvanized to PEX throughout the bathroom, and adding or relocating the vent stack connection for code compliance.
We also handle whole-bathroom plumbing updates for older Southern California homes where the remodel is an opportunity to address decades-old infrastructure. If a home is being opened up for a bathroom remodel, it's the ideal time to replace any remaining galvanized supply lines, update undersized drain lines, and verify the vent system is properly connected. Addressing these issues during a scheduled remodel is dramatically less expensive than going back after tile and drywall are in place.
Signs You Need Bathroom Remodel Now
- ✕Bathroom fixtures in an older home that no longer work properly despite multiple repairs — rough-in may need updating
- ✕Planning a bathroom renovation in a pre-1990 Southern California home — an ideal time to address galvanized pipe
- ✕Shower that can't maintain temperature or has low pressure — valve rough-in may be undersized or failing
- ✕Toilet that has required repeated wax ring resets — the flange may be set at the wrong height for current flooring
- ✕Mold behind the shower tile or wet subfloor beneath the shower pan — the drain connection may have failed
- ✕Musty odor in the bathroom without a visible source — a venting issue or slow drain leak within the wall
How Bathroom Remodel Works
We review your remodel plans, confirm fixture rough-in dimensions, and mark drain and supply locations before any demolition begins.
We coordinate the sequence of demo work with your GC or tile contractor — slab cutting if needed is scheduled so concrete can cure before other trades proceed.
Drain lines are repositioned with correct slope, supply lines are roughed in to new locations, shower valve is set at the correct height, and venting is updated as needed.
All rough-in work is inspected and approved by the city before walls and tile are closed — a required step that protects your investment and confirms code compliance.
After tile and drywall are complete, we return to install the toilet, connect the vanity supply and drain, set the shower valve trim, and complete all fixture connections.
What's Included with Bathroom Remodel
Drain Relocation
Toilet flange, shower drain, and vanity drain repositioned to match new layout dimensions with correct slope and venting.
Supply Line Rough-In
Hot and cold supply lines roughed in to new fixture locations — PEX supply lines replacing any galvanized or failed copper.
Shower Pan & Drain Installation
Shower pan drain installed at the correct height for tile or prefabricated pan, properly connected and waterproofed at the drain collar.
Shower Valve Rough-In
Pressure-balance or thermostatic shower valve roughed in at correct height with properly sized supply — ready for the tile installer.
Vent System Update
Vent connections verified and updated to meet current California plumbing code for the new fixture layout.
Rough-In Inspection
All rough-in work is permitted and passes city inspection before walls are closed — protecting your remodel investment.
Southern California's Trusted Bathroom Remodel Specialists Since 2000
C-36 Licensed
License #0784091 issued by the California CSLB. You can verify it at any time. We are fully licensed for all residential and commercial plumbing.
25+ Years in Business
Founded in 2000 by Joseph Romero, America's Plumbing has been serving Southern California homeowners for over 25 years — same owner, same values.
Upfront Flat Pricing
You get a written price before we touch anything. No hourly billing surprises. No charges for work you didn't approve. What we quote is what you pay.
Written Warranty
All workmanship is backed by a written warranty. If something we repaired fails due to our work, we come back and fix it at no charge.
Common Questions About Bathroom Plumbing Remodel
When in the remodel process should the plumber work?
There are two plumbing phases: rough-in (before drywall and tile) and trim-out (after tile and drywall are complete). We handle both. Rough-in must be done before any tile work begins — we coordinate directly with your general contractor or tile installer to stay on schedule.
Can you move a toilet to a different location in the bathroom?
Yes — relocating a toilet drain is one of the most common bathroom remodel requests. The complexity depends on whether you're on a slab (which requires concrete cutting) or wood-frame subfloor (which is more straightforward). We handle both and will give you an honest assessment of what's involved for your specific home.
My home was built in 1975 — what plumbing should I expect to update during a bathroom remodel?
Pre-1985 homes often still have galvanized steel supply lines (corroded and restricted), cast iron drain lines (sometimes cracked), and undersized venting. A bathroom remodel is the ideal time to replace the supply lines in the affected bathroom — it's already open. We'll assess and recommend only what actually needs updating.
Do you coordinate with general contractors?
Absolutely — we work with GCs regularly throughout Southern California and understand how to stay on schedule with the other trades. We provide permit documentation and can work directly from architectural plans.
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