Bathroom renovations swing wildly in cost — a small powder room refresh and a full master ensuite rebuild can be a 10× spread. Here are honest ranges by scope, with what's actually driving the number in each tier.
Small refresh: $6,000–$14,000
New vanity, mirror, faucet, toilet, paint, and light fixtures. Existing tile stays. Existing tub or shower stays. Cosmetic only — no plumbing rework.
Mid-range full rebuild: $22,000–$45,000
Full demo. New tub or shower (in same location). New tile floor and shower surround. New vanity, toilet, fixtures. Basic waterproofing (Schluter Kerdi). No layout changes.
High-end custom: $55,000–$100,000+
Layout changes (moving plumbing). Custom walk-in shower with curbless entry. Freestanding tub. Custom vanity in hardwood with stone counter. Heated tile floor. High-end fixtures. Full waterproofing and ventilation upgrade.
The single biggest cost driver in any bathroom reno is whether plumbing gets moved. Keeping the toilet, tub, and vanity in their existing locations can save $5,000–$12,000 vs. relocating them.
What actually moves the number
- Plumbing relocation (biggest single factor)
- Tile selection ($3/sq ft vs. $30/sq ft — huge cumulative impact)
- Custom vs. stock vanity ($900 vs. $5,000+)
- Fixture grade (a Delta shower valve vs. a Kohler high-end system)
- Waterproofing method (basic vs. full Schluter Kerdi system)
- Hidden condition (rotted subfloor around the toilet flange is common in older homes)
Beware bathroom quotes that don't specify the waterproofing method. 'Water-resistant drywall' behind tile is not the same as a Kerdi membrane. In 5–10 years the difference will show up as mould.
Timeline expectations
Small refresh: 5–7 working days. Mid-range full rebuild: 12–18 working days. High-end custom with layout changes: 18–30 working days. Add a few days for custom vanity lead times.
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