Bathroom Remodel Cost Calculator

How to estimate bathroom remodel costs

Bathroom remodels are among the most consistently rewarding home improvement investments. They deliver daily quality-of-life improvements, rank among the top ROI projects at resale, and - unlike kitchen remodels - can be completed in as little as a week to ten days for a mid-range scope. But cost estimates for bathroom renovations vary wildly, and many homeowners go into the process with no realistic sense of what their project should cost.

This calculator models a complete bathroom remodel at $10,000 to $45,000 depending on size, scope and finishes. A cosmetic half-bath refresh comes out at $2,000 to $5,000, and a luxury master bath at $75,000 to $160,000. The difference between those numbers comes down to four factors: bathroom type, remodel scope, item selection, and finish quality.

This calculator applies modelled US planning ranges for three bathroom types (half bath, full bath, master bath) and four remodel scopes (cosmetic, mid-range, upscale, luxury) to give you a realistic low, mid, and high estimate before you contact a single contractor. Use it to set budget expectations, qualify bids, and determine whether your vision aligns with your available funds.

Bathroom remodel ROI: what you get back at resale

Bathrooms are among the interior projects that published resale studies rank highest, and a mid-range remodel consistently returns more than an upscale one in the same house. This site does not restate those percentages, because it has not read the report they come from; the Cost vs. Value Report is linked below if you want them. Two things a resale percentage never captures either way: a working bathroom shortens time on market, and you live with it in the meantime.

The highest ROI bathroom projects share a common trait: they bring the bathroom up to the standards of comparable homes in the neighborhood rather than exceeding them. A luxury bathroom in an average-priced neighborhood will not recover its premium at sale. Conversely, a grossly outdated bathroom in a premium neighborhood creates a buyer perception problem that a well-executed mid-range remodel can correct - recouping well above average at sale.

Beyond resale ROI, bathroom remodels deliver daily use benefits that are difficult to quantify. A properly waterproofed, well-ventilated bathroom with functional storage and reliable fixtures reduces maintenance costs, prevents mold issues, and improves the start and end of every day. For homeowners planning to stay in their home for five or more years, the living quality benefit alone often justifies the investment regardless of resale return.

The right order to plan a bathroom remodel

Planning sequence matters enormously in bathroom remodels. Making decisions in the wrong order causes expensive change orders, delays, and dissatisfying results. Follow this sequence for a smooth project:

1. Set your budget first. Use this calculator to establish a realistic range before making any design decisions. Your budget determines your scope and quality tier - not the other way around. Homeowners who fall in love with a luxury tile before establishing a budget consistently overshoot.
2. Decide the scope. Determine whether you are doing a cosmetic refresh (paint, accessories, light fixtures), a full tile and fixture replacement, or a complete gut remodel. The scope drives every other decision - contractor type, permit requirements, and timeline.
3. Choose your layout. Decide whether plumbing will stay in existing locations. Moving a toilet or drain adds $500–$3,000 to the budget and extends the timeline. If your layout works functionally, keeping plumbing in place is the single highest-impact cost control decision you can make.
4. Select tile before framing and plumbing. Tile selection affects shower pan size, niche placement, and wall substrate requirements. Large-format tile (24×24 or larger) requires a flatter substrate and costs more to install. Knowing your tile before rough-in prevents expensive adjustments later.
5. Select all fixtures before demolition. Specify toilet, vanity, tub or shower, faucets, shower valve, and lighting before demolition begins. Outlet and switch locations, rough plumbing heights, and blocking all depend on specific fixture dimensions. Late changes are premium-priced change orders.
6. Get three contractor bids with your full specification.A written specification that lists every item - tile, fixtures, vanity, toilet - enables apples-to-apples comparison. Bids submitted without a specification are not comparable and reliably lead to scope disputes.

Tile selection: the highest-leverage decision in a bathroom remodel

Tile is the material that most defines a bathroom's look, and tile selection affects cost more than any other single material decision. The cost drivers are tile format (size), tile type (ceramic vs. porcelain vs. natural stone), and the complexity of the layout pattern.

Tile format and cost

Standard 4×4 and 6×6 ceramic tile is the least expensive to install - material $0.50–$3.00/sq ft, labor $4–$8/sq ft. 12×12 and 12×24 porcelain tile is mid-range - material $2–$8/sq ft, labor $6–$12/sq ft. Large-format tile (24×24, 24×48, or larger) requires a flatter and more rigid substrate, precise laser leveling, and more careful installation - material $5–$25/sq ft, labor $10–$20/sq ft. The premium for large-format tile in a 50 sq ft shower versus standard tile can easily add $1,500–$4,000 to the project.

Natural stone vs. porcelain

Natural stone (marble, travertine, slate) is visually stunning but requires sealing, is susceptible to staining, and is more expensive to install due to variability in thickness and finish. Rectified porcelain tile that mimics natural stone offers comparable looks at lower material cost, more consistent installation, and better moisture resistance. For wet areas like showers, high-quality large-format porcelain is often a better choice than natural stone from both a maintenance and cost standpoint.

Layout pattern

A simple brick-joint (offset) or stacked layout is the least expensive. A herringbone, chevron, or diagonal pattern increases labor cost by 25–40% because cutting is more complex and waste increases. A custom mosaic or Moroccan-style pattern can triple installation labor. Pattern choice should be made before budgeting - the same tile in a herringbone pattern costs significantly more than the same tile in a simple stack.

Tub vs. walk-in shower: cost, ROI, and resale considerations

The tub-versus-shower decision is one of the most consequential choices in a master bathroom remodel. Here is how to think through it:

Walk-in shower costs

A custom walk-in shower in a master bath costs $4,000–$15,000+ depending on size and tile. A 36×36 inch prefabricated shower pan with a tiled surround runs $2,000–$5,000 installed. A 48×60 inch custom tiled walk-in shower with a frameless glass door runs $6,000–$15,000 installed. A luxury walk-in shower with a rain head, body sprays, steam, and floor-to-ceiling custom tile can exceed $20,000.

Tub replacement costs

A standard alcove tub with a tiled surround costs $1,500–$5,000 installed. A freestanding soaking tub on a slab floor runs $2,500–$8,000 for the tub plus installation. A freestanding tub requires a floor-mount faucet (add $400–$1,500) and typically requires an open floor plan or dedicated platform. A jetted or air tub adds $2,000–$6,000 to the base tub cost.

Resale impact

In master bathrooms, removing a tub in favor of a large walk-in shower is generally accepted or preferred in most markets, particularly for homes with at least one other full bathroom that retains a tub. Buyers with young children or those who prefer soaking baths may specifically require a tub - making it critical to evaluate your local buyer pool. Real estate professionals consistently advise: if the master bath is the only tub in the home, keep the tub.

Vanity types, costs, and what to consider

The vanity is the visual centerpiece of most bathrooms and the item that most affects storage, functionality, and perceived quality. Vanity options range from $150 stock cabinets to $5,000+ custom built-ins.

Stock vanities ($150–$600)

Stock vanities from home improvement centers come in standard widths (18, 24, 30, 36, 48, 60 inches) with pre-assembled cabinets and typically include a cultured marble or ceramic top. They are the fastest to install and lowest cost, but offer limited style and finish options and are built from particleboard or MDF that is susceptible to moisture damage over time. Appropriate for rental properties, budget remodels, and guest bathrooms.

Semi-custom vanities ($500–$2,500)

Semi-custom vanities are available from specialty retailers and online suppliers in a wide range of styles, finishes, and dimensions. They are typically built from solid wood or plywood boxes with dovetail drawers, soft-close hardware, and higher-quality finishes. A 36-inch semi-custom vanity with a quartz top runs $800–$1,800 installed. This is the sweet spot for mid-range remodels combining quality, style, and value.

Floating vanities ($800–$3,500 installed)

Wall-mounted floating vanities provide a modern, open look, make floor cleaning easier, and visually expand smaller bathrooms. Installation requires backing (blocking) in the wall - ideally installed during rough-in. Retrofit installation in existing walls adds $200–$500 for access and blocking. Floating vanities cost 20–40% more to purchase and install than comparable floor-mounted units but are increasingly preferred in contemporary remodels.

Custom built-ins ($2,000–$8,000+)

Custom bathroom vanities built by a cabinetmaker offer unlimited size, style, finish, and storage configuration options. They are appropriate for upscale and luxury remodels and for situations where a non-standard dimension is required. Lead time for custom cabinetry is 6–12 weeks, so these must be ordered before demolition begins.

Toilet options: comfort height, bidet seats, and wall-hung models

Toilets are the most-used fixture in any bathroom. Upgrading to a quality toilet during a remodel is a high-value improvement with low incremental cost when labor is already mobilized.

Comfort height toilets

Comfort height (also called right-height or ADA-compliant height) toilets sit at 17–19 inches - similar to a standard chair height - compared to the 15–17 inches of standard toilets. They are preferred by taller adults, those with mobility limitations, and are increasingly the default for all adult bathrooms. There is no meaningful price difference between standard and comfort height toilets across all quality tiers. Cost range: $150–$1,500 depending on brand and features.

Bidet seats and integrated bidets

Bidet seats (add-on seats for standard round or elongated toilets) have grown significantly in popularity and range from $100 for basic warm-water models to $1,500+ for fully featured seats with heated seats, air drying, deodorizer, and remote controls. They require a GFCI outlet within reach of the toilet - a consideration to address during electrical rough-in. Integrated bidet toilets (one-piece units with built-in bidet functionality) cost $1,500–$5,000 and are a feature of upscale and luxury bathroom remodels.

Wall-hung toilets

Wall-hung toilets mount to a carrier frame inside the wall with the tank completely concealed - creating a clean, contemporary look and making floor cleaning effortless. Installation cost is $500–$1,500 more than a floor-mounted toilet due to the in-wall carrier frame, roughing-in complexity, and additional labor. They are appropriate for upscale and luxury remodels where the clean aesthetic justifies the premium.

Bathroom ventilation: requirements, sizing, and upgrade value

Proper bathroom ventilation is the single most important factor in preventing long-term mold and moisture damage. The National Electrical Code requires at least one exhaust fan or operable window in every bathroom, and the Home Ventilating Institute recommends 1 CFM per square foot of floor area.

For a 50 sq ft bathroom, the minimum recommended fan is 50 CFM. For a 100 sq ft master bath, 100 CFM is the minimum. Add 50 CFM for a separate toilet compartment and 100 CFM for a jetted tub. Humidity-sensing fans ($80–$250) that automatically activate when humidity rises are highly recommended - they run long enough after showering to fully exhaust moisture without requiring manual operation or timer settings.

Fan ducting must run to the exterior - never into an attic or soffit space, which is a code violation and a chronic moisture source. During a remodel when walls and ceilings are open, correcting improper duct runs costs $200–$500. As a retrofit through finished surfaces, the same correction can cost $800–$2,000. Upgrade ventilation whenever the ceiling is open during a remodel.

Waterproofing: the most important step in any bathroom remodel

Tile is not waterproof - it is water-resistant. Grout joints, even when sealed, allow moisture vapor to pass through. Proper waterproofing behind tile in wet areas (shower walls, shower floor, tub surround) is the most important step in any bathroom remodel. Skipping or shortcutting waterproofing causes water infiltration, rot, mold, and structural damage that can cost $10,000–$30,000+ to remediate.

Cement board

Cement board (Hardiebacker, Durock, Wonderboard) is a water-resistant substrate that replaces drywall in wet areas. It does not rot, warp, or support mold growth. However, cement board alone is not waterproof - water can pass through the board and its fasteners. A waterproof membrane applied over or in place of cement board is required for shower pans and high-exposure wet walls.

Schluter kerdi system

The Schluter Kerdi system uses a polyethylene fabric membrane bonded directly to the substrate, creating a continuous waterproof layer behind the tile. The Kerdi-Board system replaces cement board entirely with a waterproof foam panel. This is considered the highest-quality waterproofing system available and carries long-term warranties when installed to manufacturer specifications. Material cost premium over cement board: $200–$600 for a standard shower stall. The additional cost is minimal compared to the remediation cost if waterproofing fails.

Liquid waterproofing membranes

RedGard, Laticrete Hydro Ban, and similar liquid waterproofing membranes are rolled or brushed onto cement board or concrete and cure to form a continuous waterproof film. They are less expensive than Kerdi, widely available, and effective when applied at correct thickness. Used by many professional tile setters as a cost-effective waterproofing layer over cement board in shower applications.

Permit requirements for bathroom remodels

Permit requirements vary significantly by jurisdiction, but these rules apply in most areas:

• Work requiring permits in most jurisdictions: Moving or extending plumbing (drain, supply lines, vent stack), adding or moving electrical circuits, adding or upgrading an exhaust fan on a new circuit, structural changes, and any work in a load-bearing wall.
• Work that typically does not require permits: Like-for-like fixture replacement (toilet, faucet, showerhead) without moving plumbing, tile replacement, vanity replacement without moving plumbing, painting, and accessory replacement.
• Permit costs: Bathroom remodel permits typically cost $150–$800 depending on scope and jurisdiction. The permit fee is modest compared to the risk of unpermitted work - which can result in fines, required demolition to expose the work for inspection, and disclosure obligations at sale.

Always verify permit requirements with your local building department before starting work. A reputable contractor will pull all required permits - contractors who suggest skipping permits should be disqualified.

Bathroom remodel timeline: what to expect

Bathroom remodel timelines depend on scope, materials, and contractor scheduling. Active working days and calendar days differ significantly due to cure times, inspection scheduling, and material lead times.

• Cosmetic half-bath refresh: 3–5 active days, 1–2 calendar weeks
• Mid-range full bath: 7–10 active days, 3–5 calendar weeks
• Upscale full or master bath: 14–21 active days, 5–8 calendar weeks
• Luxury master bath: 21–35+ active days, 8–14 calendar weeks

Tile requires 24–48 hours of cure time before grouting, and grout requires 24–72 hours before exposure to water. Silicone caulk joints require 24 hours before water exposure. Custom vanities and specialty tile with long lead times are the most common schedule extension - order these before demolition begins, not after.

Common bathroom remodel mistakes to avoid

• Choosing tile before finalizing the budget. Large-format and natural stone tile dramatically increases both material and labor cost. Establish your total budget first, then select tile within that constraint. The tile selection should be the third or fourth decision after budget, scope, and layout - not the first.
• Skipping proper waterproofing. Water damage behind tile is the most common cause of bathroom remodel failure. A $300 waterproofing upgrade protects a $15,000 investment. Never use drywall in a tile wet area - not even moisture-resistant “greenboard,” which is not rated for direct water exposure.
• Moving plumbing without budgeting for full scope.Moving a toilet drain requires opening the subfloor (and often the ceiling below on multi-story homes). Budget $1,500–$4,000 for any plumbing relocation, not just the plumber's labor.
• Undersizing the exhaust fan. A 50 CFM fan in a 100 sq ft master bath will not adequately exhaust moisture. The result is chronic high humidity, grout staining, and mold. Size the fan correctly during the remodel when the ceiling is already open.
• Not ordering materials before demolition. Custom vanities have 6–12 week lead times. Special-order tile and fixtures have 2–8 week lead times. Starting demolition before all materials are confirmed and scheduled causes the bathroom to be out of service for months waiting for back-ordered items.
• Forgetting the tile waste factor. Order 10–15% extra tile for a straight layout, 20% for a diagonal or herringbone pattern. Running out of a discontinued tile mid-project is a costly disaster.

Walk-in shower costs: a detailed breakdown

Walk-in showers are the most popular upgrade in master bath remodels. Here is a detailed breakdown of what drives the cost:

• Prefab shower pan ($150–$500): Acrylic or fiberglass pans in standard sizes (32×32, 36×36, 36×48, 60×32) are the lowest cost option but offer limited size flexibility and a less custom look.
• Custom tiled shower floor ($600–$2,000): A custom mortar bed and tiled shower floor allows any size and tile selection. Requires a properly sloped mortar bed or a prefab sloped foam pan. Small mosaic tile on the floor provides better grip than large-format tile.
• Tile for shower walls ($1,500–$8,000): For a 36×48 shower, figure 80–100 sq ft of wall tile including ceiling. At $3–$20/sq ft material and $8–$18/sq ft labor, tile is the largest single cost component of a custom walk-in shower.
• Shower valve and trim ($200–$1,500): A pressure-balance valve (code-required in most jurisdictions) with trim runs $150–$400. A thermostatic valve with volume control and diverter for body sprays runs $600–$1,500 just for the valve trim. Installation labor adds $200–$500.
• Frameless glass door or enclosure ($800–$3,000):Frameless hinged doors are the premium choice. Sliding bypass doors are less expensive. Frameless glass requires precise tile work and level/plumb walls for proper door clearance. Budget $1,000–$2,500 installed for a quality frameless enclosure.
• Shower niche ($150–$400 when built during construction):A recessed tiled niche provides storage without a wire shelf. Install during rough-in for minimal incremental cost. Retrofit installation in a finished wall costs $500–$900.

Pro tips for a successful bathroom remodel

• Upgrade ventilation whenever the ceiling is open.A properly sized, Energy Star-rated exhaust fan is a $100–$250 material cost that prevents thousands of dollars in mold remediation over the life of the bathroom. This is the highest-value upgrade you can add to any bathroom remodel.
• Install in-wall blocking for grab bars during construction.Even if you do not need grab bars now, installing 2×6 blocking between studs behind the shower and toilet areas costs $100–$200 during construction and enables future grab bar installation without opening finished walls. This is especially valuable if you plan to age in place.
• Rough in a niche before tile goes up. A simple recessed shampoo niche - framed between studs and tiled - costs $150–$400 when done during construction and $500–$900 as a retrofit. Every shower benefits from at least one niche.
• Use large-format tile on the floor sparingly.Large-format floor tile requires a perfectly flat substrate and additional lippage checking. For shower floors specifically, use 2-inch mosaic tile or tumbled stone - the grout lines provide grip on a wet sloped surface. Large-format shower floor tile is a slip hazard.
• Specify all grout colors at the start. Grout color dramatically affects the final appearance of tile work. Lighter grout shows staining; darker grout can bleed into light tiles if not properly sealed. Choose grout before purchasing tile to ensure the combination is exactly what you want.
• Protect the existing floor during demolition and rough-in.Tile setters and plumbers working in a remodeled bathroom will damage adjacent flooring if it is not protected. Rosin paper, foam protection boards, and door shields cost $50–$200 and prevent $500–$3,000 in collateral floor damage.