Bathroom Remodel Cost Calculator
Estimate bathroom remodel costs by square footage, finish level, and ZIP-based multipliers.
How this bathroom estimate is calculated
This calculator uses baseline remodel assumptions by square footage, applies a finish-level multiplier, then adjusts the range using a ZIP-based regional multiplier. It’s a quick budgeting range — not a site inspection.
- Included (typical): standard labor + material allowances for a common remodel scope.
- Not included: structural changes, major plumbing reroutes, mold remediation, or high-end custom waterproofing systems unless your finish level reflects it.
- Best next step: define exactly what’s being replaced (shower/tub, tile area, vanity) and compare bids with the same scope.
What changes bathroom remodel cost the most
- Tile quantity and complexity (format, patterns, niches, curbs)
- Shower system and waterproofing details
- Plumbing changes (moving drains/vents, adding valves, swapping tub ↔ shower)
- Vanity, lighting, and ventilation upgrades
- Drywall/paint/finish carpentry and access constraints
- Hidden issues (water damage, rot, outdated wiring)
What this bathroom range usually assumes
Most bathroom budgets assume a standard tear-out, common waterproofing approach, and fixture selections that fit the finish level you chose. If your room has water damage, cast-iron plumbing, structural rot, or full-height tile work, plan above the midpoint rather than anchoring on the low end.
- Wet-area waterproofing quality is one of the biggest real-world cost differences.
- Moving drains, vents, or supply lines adds labor and inspection steps.
- Custom glass, niches, heated floors, and premium tile patterns increase labor fast.
- Older homes are more likely to uncover hidden repairs after demolition.
How to compare bathroom remodel bids
Use a written scope and product list so contractors are pricing the same room. Bathroom bids often look inconsistent because one proposal includes waterproofing details, ventilation upgrades, or fixture installation allowances and another does not.
- Confirm tile coverage, waterproofing system, grout type, and shower-pan assumptions.
- Ask whether demo, disposal, permits, and final finish carpentry are included.
- Check if plumbing and electrical rough-in changes are fixed-price or allowance-based.
- Require a payment schedule tied to completed work, not vague progress milestones.
Because bathrooms are small but detail-heavy, even minor scope differences can change the total materially, so itemized bids are worth the extra effort.
Bathroom remodel FAQ
Why do quotes vary so much? Bathrooms hide problems (water damage) and tile/waterproofing scopes vary dramatically.
Is waterproofing included? Always confirm the exact waterproofing system and warranty. It’s one of the biggest quality differences between bids.
Does moving plumbing add cost? Yes — rerouting drains/vents and supply lines increases labor and patch work.
How can I keep costs under control? Keep layout the same, decide tile scope up front, and avoid change orders mid-project.
How do I get an accurate quote? Use Get contractor quotes and request the same scope from each contractor.