Bathtub modification
Altering the existing bathtub to create a lower entry while keeping most of the original bathing fixture in place.
Bathtub removal, a new shower base, new waterproof walls, updated plumbing and a complete shower enclosure.
How Much Does a Tub-to-Shower Conversion Cost in Knoxville?
Most professionally installed tub-to-shower conversions in Knoxville cost:
$7,500–$15,000+Your exact cost depends on the bathtub layout, shower size, base and wall selections, plumbing configuration, fixtures, storage, glass and whether surrounding flooring is included.
Request a Design Consultation
Tell us about your existing bathtub and the shower you are considering.
Knoxville pricing · Updated July 2026
$7,500–$15,000+
Typical planning range for a complete professional installation.
The Average Cost of a Tub-to-Shower Conversion in Knoxville
In Knoxville, the average cost of a professionally installed tub-to-shower conversion is best represented by a planning range of $7,500 to $15,000.
That range applies to complete conversions rather than product-only shower kits, bathtub modifications or do-it-yourself materials. It accounts for the work required to remove the bathtub, prepare the existing space and install a finished shower system that is ready for everyday use.
How this range was established: It is based on the bathtub-to-shower conversions our local team evaluates, plans and installs in Knoxville and surrounding East Tennessee communities—not a generalized national average assembled from unrelated DIY, product-only and professional project types.
Why Online Tub-to-Shower Cost Estimates Range From $1,200 to $20,000
Online tub-to-shower cost estimates vary so widely because they often compare different purchases—not equivalent installations. A low advertised price may cover a modification or product, while a higher figure may represent a complete professionally installed shower.
$1,200
$20,000+
DIY materials
A homeowner-purchased shower base, wall kit, fixtures or other individual components.
Demolition, disposal, preparation, plumbing, installation labor, finishing and responsibility for the completed system.
Product-only shower kit
A prefabricated shower base and wall components sized for a common bathtub footprint.
Removal of the existing tub, plumbing work, site preparation, installation, glass, accessories and surrounding finish work.
Labor-only installation
Labor to install materials that the homeowner purchases or coordinates separately.
Product warranties, material coordination, missing components, glass and responsibility for products supplied by others.
Packaged conversion system
A standardized group of products and installation services designed around common bathtub dimensions and limited selections.
Custom footprints, unusual layouts, upgraded glass, surrounding flooring and work outside the predefined package.
Complete professional conversion
Bathtub removal, evaluation, preparation, plumbing configuration, shower base, waterproof walls, fixtures, installation and cleanup.
Very little when the scope is clearly defined. Glass, surrounding flooring and custom additions should be identified before the project begins.
The useful comparison is not simply the advertised price. Homeowners should first determine whether that number represents a product, a portion of the labor or a complete installed conversion. Only then can two tub-to-shower price estimates be compared accurately.
Knoxville Tub-to-Shower Cost Ranges by Bathtub Layout and Project Scope
Bathtub layout establishes the starting scope, but material selections, plumbing access, glass and surrounding finish work determine where the final project falls within these broad Knoxville planning ranges.
Standard Alcove Tub-to-Shower Conversion
A standard alcove bathtub generally provides the most predictable footprint and the widest selection of standard-size shower systems.
Builder-grade molded acrylic Standard plumbing configuration, curtain rod or basic framed glass and limited accessory selections.
$7,500–$8,000Panel Pro engineered system Final price depends on the selected base, fixtures, storage, glass and other options.
$9,800–$12,000FIBO engineered system Waterproof grout-free wall panels with pricing based on the complete selection package.
$11,400–$15,000
Jacuzzi Tub-to-Shower Conversion
Jacuzzi tubs can require additional removal and preparation while still allowing a standard-size shower system when the existing layout supports it.
Builder-grade molded acrylic Standard plumbing configuration, curtain rod or basic framed glass and limited accessory selections.
$8,000–$8,500Panel Pro engineered system Pricing varies with the shower base, fixtures, storage, glass and selected installation details.
$10,300–$12,500FIBO engineered system Grout-free waterproof wall system with the final range determined by the complete selection package.
$11,900–$15,000+
Garden and Oversized Bathtub Conversions
$12,500–$15,000+Garden, deck-mounted and oversized bathtubs leave a larger or less conventional footprint. These conversions generally follow one of two project paths:
Custom-glass consideration: Oversized conversions frequently require custom glass costing approximately $4,000–$7,000. We can include an allowance for the glass in the project scope, or the homeowner may arrange the glass separately.
Conditions that help determine the final price within each range
- Concrete slab or crawl-space access
- Standard or relocated plumbing
- Steel or lightweight bathtub removal
- Existing tile removal
- First-floor or upstairs bathroom
- Visible moisture concerns
- Base, walls and fixture selections
- Framed or custom glass
Unsure how your existing bathtub affects the available layout? Read whether any bathtub can be converted into a shower and what determines the best conversion approach.
What Is Included in a Professionally Installed Tub-to-Shower Conversion?
A complete tub-to-shower conversion price should cover more than a shower base and wall panels. It should define the planning, removal, preparation, products, installation and project responsibility required to deliver a finished shower.
Complete installed pricing
The quoted scope should identify what is being removed, what is being installed, who is completing the work and which selections or allowances affect the final price.
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1
In-home design consultation
A project manager evaluates the bathtub area, discusses how the new shower should function and explains the available options.
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2
Measurements and project planning
The existing footprint, wall dimensions, plumbing configuration and selected products are documented before materials are ordered.
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3
Bathtub removal and disposal
The existing bathtub, surrounding materials and project debris are removed from the bathroom and hauled away.
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4
Evaluation and preparation
The exposed area is evaluated and prepared so the new shower base, walls and plumbing can be installed correctly.
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5
Plumbing configuration
The drain, valve and water supplies are configured for the selected shower layout and fixture arrangement.
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6
Shower base installation
The selected reinforced acrylic, composite stone or custom cultured-marble base is properly supported, aligned and installed.
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7
Waterproof shower walls
The selected wall system is measured, fitted and installed with the appropriate waterproof joints, trim and finishing details.
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8
Fixtures, storage and accessories
The defined scope includes the selected shower fixture, shelving, niches, seating, grab bars or preparation for future accessories.
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9
Installation, cleanup and walkthrough
Employee installers complete the work, clean the project area and review the finished shower with the homeowner.
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10
Limited lifetime warranty
The completed conversion is supported by the warranty terms defined in the project agreement.
How shower glass is priced
A curtain rod or basic framed enclosure may be included in some standard conversion scopes. Custom glass is normally measured after installation and may be carried as an allowance or arranged separately by the homeowner.
When surrounding flooring is included
Bathroom flooring is included only when it is written into the project scope. It is most common when a smaller standard-size shower replaces a garden or oversized tub and part of the former footprint returns to usable floor space.
See how these components come together during a complete bathtub-to-shower conversion.
View the Complete Tub-to-Shower Conversion Scope
What Factors Affect the Cost of Converting a Tub to a Shower?
The cost to convert a bathtub into a shower moves through the planning range based on the existing layout, selected shower system and amount of work included. These factors have the greatest effect on the final price.
- Bathtub footprint and shower size: Standard alcove tubs generally support standard-size products, while garden and oversized tubs may require a custom layout or additional flooring.
- Shower-base selection: Reinforced acrylic, composite stone and custom cultured-marble bases have different material and installation costs. Learn more about floor preparation and shower-base support.
- Waterproof wall system: Builder-grade molded acrylic, Panel Pro and FIBO engineered systems occupy different points in the price range.
- Glass enclosure: A curtain rod or basic framed door costs less than custom glass designed for an oversized shower.
- Fixtures, storage and accessories: Shower fixtures, handheld sprays, shelving, niches, seating and grab bars affect products and installation.
- Plumbing configuration and access: Concrete slabs, crawl spaces, upstairs bathrooms and relocated drains require different levels of preparation.
- Removal and surrounding finishes: Steel tubs, existing tile and bathroom flooring can add removal, preparation and finishing work.
What about existing conditions?
Our project managers can usually identify the conditions that affect price during the consultation. The less predictable exceptions are generally unusual plumbing or electrical work concealed by a previous installation, such as waterlines or wiring placed outside the proper wall cavities. If corrective work is necessary, the condition and appropriate solution are explained before proceeding.
Real Knoxville Tub-to-Shower Conversion Cost Examples
These completed East Tennessee projects show how bathtub layout, materials, glass, accessories and installation conditions affect real tub-to-shower conversion prices.
Maryville, TN
Standard Alcove Conversion With Premium Accessibility Features
Completed project total $14,200- Curbless composite stone shower base
- White Subway FIBO engineered waterproof walls
- Matte black valve with handheld shower wand
- Barn-style exposed-roller glass enclosure
- Designer wall-mounted shelves
- Grab bars and foldaway designer seating
- Custom fitting around the curved ceiling layout
Why it reached this price: Premium waterproof walls, a curbless composite base, upgraded glass and accessibility features placed this standard alcove project near the upper end. The scope also included correcting substandard carpentry exposed after removal before the new shower was installed.
Knoxville, TN
Jacuzzi Tub Conversion With an Oversized Shower Base
Completed project total $12,100- Removal of the existing whirlpool Jacuzzi tub
- Black Marble FIBO engineered waterproof walls
- Large 60-by-42-inch shower base
- Matte black shower fixtures
- Framed bypass shower doors
- Popular recessed shower storage
- Waterproof bathroom flooring
Why it reached this price: The larger shower base, FIBO wall system, waterproof flooring and removal of the whirlpool tub increased the scope. The project also required slab work to complete the new shower configuration.
Farragut, TN
Oversized Conversion With a Custom Base and Custom Glass
Completed project total $16,200- Custom oversized Onyx Carrara cultured-marble base
- White Subway FIBO engineered waterproof walls
- Recessed shower storage
- Stylish grab bars
- Shower valve with handheld wand
- Slab work and accessory relocation
- Drywall patching and painting
Why it reached this price: The custom base, oversized footprint, slab work and surrounding finish repairs increased the scope. The total included a $3,700 allowance for half-inch SpotShield custom glass with two fixed panels and an oversized hinged door.
These are actual completed-project examples, not fixed-price packages. Each total reflects that bathroom’s layout, selected materials, glass, accessories and installation scope. A different home with similar photographs may require a different project plan and price.
How to Control Tub-to-Shower Conversion Cost Without Cutting Corners
The most affordable tub-to-shower conversion is not always the one with the lowest starting price. The better approach is to control the scope carefully while protecting the installation details that determine how well the new shower performs.
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1
Keep an efficient shower footprint
Using the existing bathtub area and avoiding unnecessary expansion helps control base size, wall materials, plumbing work and glass requirements.
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2
Use a standard-size base when it fits the goal
A standard reinforced acrylic or composite stone base generally costs less than a custom-made pan. Custom sizing is most valuable when the larger footprint meaningfully improves the finished shower.
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3
Choose wall materials around long-term priorities
Builder-grade acrylic lowers the initial investment, while Panel Pro and FIBO provide additional design and performance options. Choose the system whose benefits matter enough to justify the difference.
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4
Select practical glass
A curtain rod or basic framed enclosure controls cost. Custom frameless glass is most worthwhile when the shower dimensions, entry or finished design require it.
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5
Prioritize the features used every day
Spend first on useful storage, a handheld shower wand, seating or grab-bar preparation. Decorative upgrades can remain secondary when the budget is limited.
The goal is not to remove everything from the project. It is to direct the budget toward the shower size, materials and features that provide the greatest everyday value for your household.
Compare Shower Design OptionsIs a Higher-Cost Tub-to-Shower Conversion Always a Better Value?
Not automatically. A higher price creates better value only when the additional investment improves the shower’s structural stability, warranty protection, maintenance, appearance or everyday function. Paying more for features that do not matter to the household does not necessarily improve the finished project.
FIBO is a meaningful upgrade.
Its higher cost buys a thick, structurally stable engineered wall system, lifetime warranty protection and a finished appearance that builder-grade acrylic does not match.
Builder-Grade Molded Acrylic
A practical entry-level option for homeowners whose primary goal is controlling the upfront conversion price.
- Thin molded acrylic construction
- Limited colors, patterns and accessory options
- Typically carries warranty coverage of ten years or less
- Best suited to straightforward, budget-focused conversions
Panel Pro
An engineered shower-wall option that increases material quality and warranty protection without moving to the full FIBO design collection.
- More substantial engineered construction
- Improved appearance over builder-grade molded acrylic
- Lifetime warranty protection
- Strong balance between initial price and long-term value
FIBO Engineered Waterproof Walls
A premium grout-free wall system for homeowners who place greater value on structural stability, design quality and long-term ownership.
- Thick, structurally stable engineered panels
- Waterproof Aqua-Lock joint system
- Lifetime warranty protection
- Realistic marble, subway, stone, concrete and wood-inspired designs
- Premium finished appearance without exposed grout lines
When spending more improves value
Additional cost is justified when it purchases a stronger wall system, longer warranty, easier maintenance, better everyday function or an appearance the homeowner will continue appreciating for years.
When spending more adds cost without much value
A larger footprint, custom glass or numerous accessories may increase the price without improving daily use. Those upgrades are worthwhile only when they solve a functional need or materially improve the design for that homeowner.
Our position: FIBO costs more than builder-grade acrylic, but the difference is visible and structural—not merely a higher price attached to a similar product.
Compare Cost, Benefits and Long-Term ValueHow to Compare Tub-to-Shower Conversion Quotes
Tub-to-shower conversion estimates can only be compared accurately when they define the same products, installation work and project responsibilities. A lower total is not necessarily a lower price if important parts of the finished shower are excluded.
Compare scope before price.
First determine what each company is removing, supplying, installing, finishing and warranting. Then compare the totals.
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Defined removal and preparation
Confirm that bathtub removal, disposal, evaluation and preparation of the exposed area are included in the written scope.
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Shower-base type
The estimate should identify whether the base is molded acrylic, reinforced acrylic, composite stone or custom cultured marble—not simply “a shower pan.”
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Wall-system construction
Compare the actual wall material, thickness, waterproofing method, available designs and warranty rather than assuming all shower panels are equivalent.
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Plumbing configuration
Confirm what is included for the drain, valve, water supplies and any known plumbing changes required by the selected layout.
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Fixtures, storage and accessories
Verify the selected shower fixture, handheld wand, shelves, niches, seating, grab bars and other accessories included in the quoted total.
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Glass enclosure
Determine whether the quote includes a curtain rod, framed door, custom glass, a glass allowance or no enclosure at all.
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Bathroom flooring
If flooring is needed around the converted footprint, confirm whether replacing the complete bathroom floor is included in the project.
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Installation team
Ask whether the work will be completed by company employees, subcontractors or multiple independently coordinated trades.
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Warranty coverage
Compare the warranty duration, what products and workmanship it covers and which company remains responsible if service is needed later.
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Project management and accountability
Identify who conducts the consultation, who manages the installation and who will remain available if a question or concern arises.
Understand every allowance
An allowance is not necessarily a problem, especially for custom glass measured after the shower is installed. The quote should state the allowance amount, what it is intended to cover and how any difference will be handled before the final selection is approved.
The best estimate is not necessarily the longest or the lowest. It is the one that clearly defines the finished shower, the installation responsibility and the amount the homeowner should realistically expect to pay.
Compare Local and Franchise Bath CompaniesWhat a Knoxville Homeowner Said About Price, Quality and Workmanship
Mr. Elrod compared multiple bath companies before choosing our local team.
The project manager who conducts the consultation and prepares the quote also serves
as the lead installer, maintaining direct accountability through the project.
R. Elrod
★★★★★
“Knoxville Tub and Shower was by far the best of all the bathfitters I quoted. They were on time for both the quote and the installation with good communication up to the time of the meeting. The better part was there pricing was lower and the product better than the others. What I liked the most was that the person who provided the quote was the same person to do the install. Communication was great but even better was the quality of the installation and product. I highly recommend them over the other big company providers.”
Tub-to-Shower Conversion Cost FAQs
Straightforward answers about Knoxville conversion prices, included scope, project types, glass, flooring, plumbing and comparing estimates.
Most professionally installed tub-to-shower conversions in Knoxville cost between $7,500 and $15,000. Standard alcove projects can begin near the lower end, while FIBO systems, oversized tubs, custom bases, premium glass and additional bathroom flooring can move the total toward $15,000 or higher.
Lower advertised prices may represent a bathtub modification, do-it-yourself materials, a product-only shower kit or only part of the installation labor. A complete professional conversion includes removal, preparation, plumbing configuration, a shower base, waterproof walls, fixtures, installation and cleanup. Determine what the number includes before comparing it with another price.
A complete installed price should define the consultation, measurements, bathtub removal, disposal, preparation, plumbing configuration, shower base, waterproof walls, fixtures, selected storage and accessories, installation, cleanup, walkthrough and warranty. Glass and bathroom flooring should be identified as included items, allowances or separate work.
A standard alcove conversion with builder-grade molded acrylic, standard plumbing and limited options generally costs about $7,500 to $8,000. Panel Pro engineered systems typically range from $9,800 to $12,000, while FIBO engineered waterproof wall systems generally range from $11,400 to $15,000 depending on the selected base, fixtures, storage and glass.
Often, yes. Jacuzzi tubs can require additional removal and preparation, while garden and oversized tubs may require a custom cultured-marble base or a standard-size shower with new flooring throughout the bathroom. Oversized conversions commonly range from $12,500 to $15,000 or more, depending on glass, materials and the finished layout.
Custom glass for an oversized tub-to-shower conversion can cost approximately $4,000 to $7,000. Because it is normally measured after the shower is installed, the project may include a custom-glass allowance or allow the homeowner to arrange the glass separately. A curtain rod or basic framed enclosure costs substantially less.
Flooring commonly affects the price when a standard-size shower replaces a garden or oversized bathtub and part of the former tub footprint becomes exposed floor space. The complete bathroom floor must then be replaced so the finished surface is continuous rather than visibly patched around the new shower.
A concrete slab can increase cost when the drain or plumbing configuration requires access through the slab. A crawlspace often provides more direct access beneath the bathroom, although every layout is different. The price depends on how much plumbing must change and how efficiently the new base can be aligned and supported.
Keep an efficient shower footprint, use a standard-size base when it meets the project goal, select practical glass and prioritize the fixtures and accessories used every day. Do not reduce cost by compromising base support, plumbing configuration, waterproofing, preparation or installer accountability.
Compare the defined scope before comparing the totals. Each estimate should identify removal, preparation, base type, wall system, plumbing, fixtures, storage, glass, flooring, installation team, allowances, warranty and project accountability. A lower quote may not represent a lower price when necessary components are excluded.
For homeowners who value structural stability, lifetime warranty protection, grout-free maintenance and a premium finished appearance, FIBO is a meaningful upgrade over thin builder-grade acrylic. The added cost purchases material and design differences rather than simply attaching a higher price to a similar product.
Get a Clear Price for Your Tub-to-Shower Conversion
Online averages provide a useful starting point, but an accurate conversion price requires a project manager to evaluate your bathtub, take measurements and match the available layout with your preferred base, walls, fixtures, storage and glass.
- Review the existing bathtub, footprint and visible installation conditions
- Compare shower systems and features at different points in the price range
- Receive a clearly defined scope based on the products and work included
- Work with the same project manager from consultation through lead installation
Request a Design Consultation
Tell us about your current bathtub and what you want the new shower to include.