Bathroom Remodel Cost Estimator
A bathroom is the densest room in the house: several trades, many fixtures and very little floor area to absorb a mistake.
Drop plan sheets or site photos
Up to 6 files — they're read together as one job
Ballpark for planning and bid-checking — not a quote. Confirm against local supplier and subcontractor pricing.
What a complete bathroom remodel estimate covers
- Demolition and disposallot
- Plumbing rough-infixture
- Electrical rough-indevice
- Framing modificationslot
- WaterproofingSF
- Tile — floorSF
- Tile — wall / surroundSF
- Vanity and countereach
- Fixtures and trimeach
- Paint and finishSF
- Permit and inspectionlot
Scope most often left out
These are the lines that turn a won bid into a loss. Price them or exclude them in writing — never assume them.
- Hidden damage behind the shower — assume you will find some
- Substrate and waterproofing behind tile, which is not optional
- Moving a drain, which is far more expensive than moving a supply
- Ventilation upgrades required by code
- The number of separate trade visits a small room requires
Cost per square foot is meaningless here
A bathroom concentrates plumbing, electrical, waterproofing, tile and finish carpentry into a very small area. The scope is driven by fixture count, tile area and whether anything moves — not by floor area. Estimate it line by line and ignore any per-square-foot rule of thumb.
Moving the drain is the expensive decision
Relocating a toilet or shower drain means opening the floor and reworking waste lines, often with slope constraints that dictate what is even possible. Supply lines are comparatively easy to move. If a layout change moves a drain, that is the line item to flag to the client early.
FAQ
How do you estimate a bathroom remodel?
Estimate it line by line across trades rather than per square foot: demolition, plumbing rough-in by fixture, electrical by device, waterproofing and tile by area, then vanity, fixtures, paint and permits. Add an allowance for hidden damage, The estimator does this from your uploads or description.
Why is moving a drain so expensive?
It requires opening the floor and reworking waste lines under slope constraints that limit where the fixture can go. Supply lines are far easier to relocate, which is why a layout change that moves a drain has an outsized effect on cost.
What should be carried as an allowance?
Hidden damage behind the shower or under the floor. In an older bathroom some rot or failed substrate is common enough that a written allowance is more honest than assuming none.
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