What it is
A bath starts at the drain
A basement bath depends on where the drain sits. If it is deep enough, the toilet drains to it. If not, a pump lifts the waste.
We break the slab where the drain goes, set the drain and the vent, pour the slab back and frame the room. A licensed plumber does the pipe work and it is inspected.
Slab cut and set back
A vent that goes to the roof or ties to an existing vent
A vented fan that moves air outside
In the price
What's included, and what's not
Included
Slab cut and patched
Drain, vent and supply lines
A floor drain or an ejector pit and pump when the drain is too high
Framing, drywall and a vented fan
Permit and inspections
Not included
Fixtures: toilet, vanity and shower
Tile beyond the shower pan
Moving the water heater
What changes the number
What moves the price
Drain depth
A deep drain means no pump. A high one needs a pit.
Pump
An ejector pit adds a pit, a pump and a vent.
Slab
More concrete to break, more to patch.
Room size
A half bath is a toilet and a vanity; a full bath adds a shower.
Vent
Tying to an existing vent costs less than a new run to the roof.
Fixtures
Fixtures are your choice and price.
How it goes
Steps and who shows up
- 01
Step 1: Find the drain
We locate the main drain and its depth.
- 02
Step 2: Break the slab
A trench for the drain and vent.
- 03
Step 3: Rough-in inspection
The inspector looks at the pipes before the slab goes back.
- 04
Step 4: Pour and frame
Slab patched, walls framed.
- 05
Step 5: Finish
Drywall, tile and fixtures.
Permits and rules
Plumbing permits
Plumbing in Wisconsin is done under a plumbing license and inspected. Our plumber pulls the plumbing permit and we pull the building permit.
A basement bath also needs a vent and a way to move moist air outside. We put both on the quote.
Questions about this job
Can I add a bath if my drain is above the floor?
Yes, with an ejector pit and pump. It adds cost, and we show it as its own line.
Will the basement smell?
A sealed pit with a vent does not. We show you the vent before we close the wall.
Can you add a laundry too?
A washer box and a drain go in the same trench. It's usually cheaper to do both at once.
Can you do a shower?
Yes. A shower pan is waterproofed before tile goes on, and we test it with water.
Ask about your wall
Send a photo of the wall or call. We measure before we quote.