Bath remodels are unforgiving of budget surprises. Hold a 15–20% contingency outside the contract — higher than kitchen — because hidden subfloor, drain, and venting issues are common when you open up an old bathroom.
Where the money goes
A typical $35,000 mid-range corridor primary bath remodel breaks down roughly:
| Category | % of budget | Dollars (on $35K project) |
|---|---|---|
| Labor (plumbing, tile, framing, electrical, finish) | 30–40% | $10,500–$14,000 |
| Tile (material + install) | 15–25% | $5,250–$8,750 |
| Plumbing fixtures (faucets, valves, toilet, drains) | 10–20% | $3,500–$7,000 |
| Vanity + countertop + sink | 8–15% | $2,800–$5,250 |
| Shower glass / enclosure | 5–15% | $1,750–$5,250 |
| Lighting + electrical | 3–8% | $1,050–$2,800 |
| Ventilation fan | 1–3% | $350–$1,050 |
| Mirrors + accessories | 1–3% | $350–$1,050 |
| Design fees + permits + soft costs | 3–8% | $1,050–$2,800 |
| Contingency reserve (held back) | 15–20% added | $5,250–$7,000 held back |
Tile (15–25% of budget)
Material cost
| Tile type | Material cost/sq ft |
|---|---|
| Basic ceramic subway | $2–$5 |
| Standard porcelain (floor and wall) | $4–$12 |
| Premium porcelain / large-format | $12–$30 |
| Natural stone (marble, travertine, slate) | $8–$25 |
| Imported Italian, Spanish, encaustic | $25–$80 |
| Hand-made Zellige | $30–$60 |
| Glass mosaic accent | $15–$60 |
Installation cost
- Standard porcelain floor: $8–$14/sq ft installed labor
- Wall tile (subway, simple pattern): $10–$16/sq ft installed
- Large-format tile (24x48"+): $14–$22/sq ft installed (heavier, more setup)
- Mosaic / small tile: $20–$40/sq ft installed (more cuts, more time)
- Complex pattern (herringbone, chevron): +$3–$8/sq ft
- Natural stone install premium: +$3–$10/sq ft (sealing, careful handling)
For a typical primary bath with 70 sq ft floor + 80 sq ft shower walls + 20 sq ft accent: $1,500–$3,000 material for mid-range, $4,000–$10,000 for premium. Install adds $2,000–$5,000.
Plumbing fixtures (10–20%)
Brand comparison for the corridor
- Delta: Best value mid-range. Lifetime drip-free warranty, easy parts availability at any big-box. Solid choice for guest baths.
- Moen: Comparable to Delta. Slightly more design variety, also lifetime warranty.
- Kohler: The corridor go-to for primary baths. Best design range at premium tiers. Strong dealer service (Ferguson, plumbing supply houses). Higher prices but better aesthetics for showcase rooms.
- American Standard: Builder-grade reliable. Showing up in mid-range new construction. Fine for guest/hall baths.
- Brizo / Grohe / Hansgrohe: Premium-tier ($400–$2,000+ per fixture). Best for high-end primary baths where you want unique design.
- Waterworks / Kallista / Newport Brass: Ultra-premium ($800–$5,000 per fixture). Niche for luxury corridor homes.
Fixture pricing
| Fixture | Mid-range | Premium |
|---|---|---|
| Lavatory faucet (sink) | $150–$400 | $400–$1,500 |
| Shower valve + trim | $300–$700 | $700–$2,500 |
| Shower head (rain or standard) | $80–$300 | $300–$1,200 |
| Hand-held shower wand | $80–$250 | $250–$700 |
| Tub filler | $200–$600 | $600–$2,500 |
| Toilet | $200–$500 | $500–$3,000+ (smart toilets) |
| Drains, trim, accessories | $200–$500 | $500–$1,500 |
Vanity + countertop + sink (8–15%)
Vanity options
- Stock vanity (Lowe's, Home Depot): $300–$1,500 for 24"–48" widths. Limited finishes, includes top.
- Semi-custom vanity: $1,500–$4,000 for 36"–60" widths. Wood species and finish options. Often includes pre-fab quartz top.
- Custom vanity (built by cabinet shop): $3,000–$10,000+. Made to your exact dimensions and finish. Best for double-vanity primary baths and small odd-sized spaces.
- Designer vanity (Restoration Hardware, Pottery Barn, etc.): $1,200–$5,000. Aesthetic-driven, often furniture-style (legs, dovetail joinery).
Countertop on vanity
- Quartz: $400–$1,200 for typical vanity size
- Granite: $300–$1,000
- Marble: $500–$2,000 (more acceptable in bath than kitchen)
- Solid surface: $300–$800
- Prefab integrated top with sink (cultured marble): $200–$600
Sink
- Drop-in: $100–$350
- Undermount: $200–$500 (most common premium choice)
- Vessel: $200–$800
- Wall-mount: $300–$1,500
Shower glass (5–15%)
| Type | Cost |
|---|---|
| Framed sliding door | $800–$1,500 |
| Semi-frameless | $1,200–$2,500 |
| Frameless pivoting / hinged door | $2,500–$5,500 |
| Walk-in fixed glass panel only | $1,500–$3,500 |
| Steam shower enclosure (full sealed) | $4,000–$10,000 |
| Custom curbless shower glass (full wall) | $4,000–$8,000 |
Frameless glass is the high-end default in 2026. Heavy 3/8" or 1/2" tempered glass, minimal hardware. Look for clear glass with low-iron content if you want true clarity (standard glass has a slight green tint). Specify ClearShield or similar protective coating to reduce water spotting.
Lighting + electrical (3–8%)
| Item | Cost |
|---|---|
| Vanity sconces (pair) | $150–$800 |
| Vanity bar light | $80–$400 |
| Recessed cans (4–6 needed) | $150–$500 fixtures + $300–$700 install |
| Shower light (wet-rated) | $80–$250 |
| Lighted/heated mirror | $400–$1,500 |
| Heated floor system | $800–$2,500 installed |
| New circuit + GFCI updates | $400–$1,000 |
| Dedicated fan circuit | $200–$400 |
Ventilation (1–3%)
Often underbudgeted. A code-compliant exhaust fan with ductwork to outside (not into attic):
- Standard 80 CFM fan, light combo: $80–$200 fixture + $200–$500 install with duct.
- Quiet (low-sone) premium fan, e.g., Panasonic WhisperGreen: $200–$500 fixture, same install.
- Humidity-sensing fan: $250–$600 fixture (auto-runs when humidity rises).
- New ducting through wall or roof (if existing routes into attic): $300–$800 additional.
Mirrors, accessories (1–3%)
- Mirror (custom-cut + frame or framed off-shelf): $80–$600
- Towel bars, hooks, ring (matched set): $80–$400
- Toilet paper holder: $20–$120
- Robe hooks: $20–$100 each
- Glass shelves: $40–$200
Design fees + permits + soft costs (3–8%)
- Design-build firm design fee: $1,500–$5,000 (often built into project quote)
- Building permit: $50–$200
- Plumbing permit: $50–$150
- Electrical permit: $50–$150
- Dumpster rental: $400–$700
- Plumbing fixtures often need to be on-site before permit inspection — plan order timing.
The hidden costs (always)
| Surprise | Cost | How often |
|---|---|---|
| Rotten subfloor under toilet | $500–$2,500 | 1 in 3 bath remodels in pre-1990 homes |
| Drain line needs upsizing for new shower | $800–$2,500 | Common when converting tub to shower |
| Vent ducts into attic, need re-routing to outside | $400–$1,200 | Very common in pre-2000 corridor homes |
| Framing changes if new shower differs from old tub footprint | $600–$2,500 | Anytime layout changes |
| Old shower valve rough-in doesn't match new fixture brand | $300–$800 | Common with mixed-brand fixture selections |
| Asbestos floor tile or popcorn ceiling abatement | $800–$2,500 | Pre-1980 homes |
| Mold discovered behind wall tile | $500–$3,000 | Older showers without proper waterproofing |
| Old galvanized supply lines need replacement | $1,000–$3,500 | Pre-1970 homes |
15–20% contingency, not 10%. Bath remodels have more hidden surprises than kitchens — older plumbing, original venting routed wrong, subfloor water damage. Set the contingency higher and don't dip into it for upgrade decisions during construction.
Pricing by bath type (corridor 2026)
| Bath type | Mid-range complete | Premium / high-end |
|---|---|---|
| Powder room | $3,000–$5,500 | $5,500–$10,000 |
| Guest bath (tub-shower combo) | $10,000–$18,000 | $18,000–$30,000 |
| Primary bath (walk-in shower, single vanity) | $25,000–$40,000 | $40,000–$70,000 |
| Primary bath (walk-in shower + tub, double vanity) | $40,000–$60,000 | $60,000–$120,000+ |
| Curbless shower add-on | +$2,000–$5,000 | (usually included) |
| Accessibility package | +$3,000–$10,000 | (usually included) |
Where to source materials
- Lowe's, Home Depot, Menards: stock vanities, basic tile, mid-range fixtures, mirrors.
- Ferguson: plumbing supply house with Iowa City presence — premium fixture brands (Kohler, Brizo, Hansgrohe), better service than big-box.
- Cabinet Style and other corridor design firms: tile, slab counters, full coordinated selections.
- Cedar Rapids tile and stone showrooms: wider selection for premium materials.
- Restoration Hardware, Pottery Barn, Rejuvenation, Schoolhouse: designer vanities, mirrors, lighting.
- Wayfair, Build.com: online options for fixtures and accessories — verify dimensions and finish quality before ordering.
Frequently asked questions
What's the biggest cost category?
Labor — 30–40% of total — because bath work is plumbing- and tile-intensive. Tile material plus install is second at 15–25%.
Kohler, Moen, or Delta?
Delta and Moen for mid-range value with lifetime warranties. Kohler for design variety and primary baths. Brizo/Hansgrohe/Grohe for premium-tier. Match brand within one bath for consistent finish.
How much is shower glass?
Framed sliding $800–$1,500. Semi-frameless $1,200–$2,500. Frameless custom $2,500–$5,500. Steam shower enclosure $4,000–$10,000.
What hidden costs surprise people?
Rotten subfloor under toilet, drain upsize for new shower, ventilation upgrade if existing fan vents to attic, framing changes for new shower footprint, old rough-in mismatched to new fixture brand. Hold 15–20% contingency.
How much tile do I need to budget?
Typical primary bath: 70 sq ft floor + 80 sq ft shower walls + 20 sq ft accent. Material $1,500–$5,000 mid-range, $5,000–$15,000+ premium. Install $8–$25/sq ft.