How we estimate bathroom remodel cost
Every estimate combines a national price for each part of the job with a local labor adjustment for your state. Here is exactly how that works and where the numbers come from.
The formula
For each line item we multiply a quantity (driven by your bathroom floor area, scope of work, finish level, and whether a tub is converted to a walk-in shower) by a national unit cost, then apply a quality-grade factor. A regional labor multiplier is applied to the labor portion only — materials are priced nationally. We show the itemized result as a ±25% range.
National unit costs
| Line item | National unit cost | Source |
|---|---|---|
| Demolition & disposal | $25.00 / sq ft | ref |
| Toilet, faucets & fixtures | $1,400.00 / sq ft | ref |
| Tub / shower & surround | $3,200.00 / sq ft | ref |
| Tile & flooring | $45.00 / sq ft | ref |
| Vanity & countertop | $1,800.00 / sq ft | ref |
| Electrical & lighting | $1,100.00 / sq ft | ref |
| Plumbing rough-in & relocation | $2,500.00 / sq ft | ref |
| Painting & finishing | $700.00 / sq ft | ref |
| Permit & inspection | $600.00 / sq ft | ref |
Regional labor multipliers
Each state's labor multiplier is its mean construction-trades wage relative to the national mean (BLS OEWS Carpenters, SOC 47-2031, as a disclosed proxy for remodeling trades pending verification). Multipliers are bounded to a sane range and applied to the labor share of each line item, so materials stay nationally priced while labor tracks local wages.
Data vintage & limitations
Compiled June 2026 from public cost aggregators and government wage data — these are derived estimates, not live contractor quotes. Local prices vary with project complexity, access, and material availability; always confirm with a licensed contractor before budgeting.