Bathroom remodel plumbing in Sacramento, CA
The plumbing decisions in a bath remodel get locked in behind tile, so they have to be right the first time.

We do the rough-in plumbing for new layouts, set shower valves and drains, relocate toilets and vanities, pass the inspection, then return to set fixtures once tile and cabinets are in.
What bathroom remodel plumbing covers
A bathroom remodel has two plumbing phases. Rough-in happens with walls open: drains, vents, supply lines, shower valves and the tub or shower drain go in, get tested and get inspected. Finish happens after tile and cabinets: faucets, toilet, shower trim and accessories.
Converting a tub to a walk-in shower, moving a toilet, or adding a second sink all change drains and vents. We plan those changes with you and your contractor before demolition so there are no surprises.
Signs it is time to call
- Tub-to-shower conversionNew drain size and valve location.
- Moving the toiletDrain and vent rerouting.
- Adding a second sinkNew supply and drain branch.
- Old valves behind the wallReplace while the wall is open.
- Curbless showerLinear drains and slab work planned early.
Typical rough-in and finish plumbing for one bathroom. Layout changes on slab foundations sit toward the top. Every price is confirmed on site before work starts.
What moves the price
| Factor | How it affects the job |
|---|---|
| Layout changes | Moving drains costs more than keeping them. |
| Foundation | Slab work costs more than crawlspace work. |
| Fixtures | Number of sinks, showers and toilets. |
| Permits and inspection | Rough-in and final inspections. |
See every typical range side by side in our Sacramento plumbing cost guide.
Bathroom Remodel Plumbing in Sacramento: what we see locally
Many Sacramento-area homes sit on concrete slabs, which makes moving a toilet or shower drain a concrete job. Homes with crawlspaces, common in older East Sacramento and Land Park houses, are easier to rework below the floor.
Rough-in is tested and inspected before tile goes on, so problems never end up behind the wall.
If you are opening walls in a pre-1960 home, it is the right time to replace galvanized supply lines in that bathroom, or the whole house. See repiping.


What you can safely do before we arrive
- Choose fixtures early so rough-in matches them.
- Share your contractor's plans and schedule.
- Mark any wall finishes to protect.
Bathroom Remodel Plumbing questions
Do you work with my contractor?
Yes. We work as the plumbing trade on remodels led by general contractors, or directly with homeowners.
Do bathroom remodels need permits?
Plumbing changes generally do. We pull the plumbing permit and meet the inspector.
Can a tub really become a curbless shower?
Often, yes, but it may need slab or floor work for the drain. We tell you during layout review.
Fixtures & projects
How we handle bathroom remodel plumbing
The same four steps on every visit, so you always know what happens next and what it costs.
Layout review
Confirm fixture positions, drain and vent paths.
Rough-in
Install drains, vents, supplies and valves; pressure and drain test.
Inspection
Meet the inspector before walls close.
Finish
Set fixtures and trim after tile and cabinets.
Keep going
Often booked with bathroom remodel plumbing
Shower Valve Repair
When a shower swings from hot to cold, the valve is telling you something.
Read moreToilet Repair
A running toilet can waste more water than the rest of the house combined.
Read moreWhole-House Repiping
Repiping replaces every leak you have not had yet.
Read moreFaucet Repair
A dripping faucet is small until you count the gallons.
Read moreWater where it should not be? Call now.
A John's plumber answers (916) 602-0883 day and night, tells you how to stop the damage, and quotes the repair before any work starts.