How a Shower Conversion From a Tub Really Works (Start to Finish)

The ultimate, detailed homeowner’s guide to transforming your bathing space, from initial planning to installation and beyond.

Is a Tub to Walk-In Shower Conversion Right for Your Home?

If you’re tired of struggling with an outdated bathtub or worried about slips and falls, a tub to walk-in shower conversion may be the life-changing update your bathroom needs. Traditional bathtubs, especially with high walls, can be hazardous for children, adults with mobility challenges or seniors aging in place. Replacing that old tub with a more accessible shower enhances safety, boosts comfort and modernizes your space.

But not all conversions involve a full remodel. At Quick Tub®, there’s a smarter way: a low-cost, fast system that transforms your bathroom tub to a shower in just a couple of hours, using your existing tub and without major construction.

This guide is for homeowners exploring every option, from DIYers curious about materials and plumbing to those planning to hire professionals. Whether you’re considering a bathtub to walk-in shower conversion for accessibility or aesthetics, you’ll find step-by-step insights here.

How Much Does a Tub to Shower Conversion Cost?

A professional tub-to-shower conversion typically costs between $3,000 and $8,000, depending on materials, plumbing changes and whether full demolition is involved. 

For homeowners who want safer access without committing to a full remodel, tub-retaining conversion systems like Quick Tub® offer a distinctly different and more affordable approach. Quick Tub® works with your existing bathtub, creating a low-threshold, walk-in entry without removing the tub, altering plumbing or installing new waterproofing systems.

Cost Comparison: Quick Tub® Conversion Kit vs. Full Tub-to-Shower Conversion

Quick Tub® Conversion Kit (Tub Retained): 

Typical total range: Often under $2,000, depending on options selected.

Full Tub-to-Shower Conversion (Tub Removed)

Typical total range: $3,000 - $8,000+

What Drives the Cost Difference?

The price gap between these two options comes down to scope and complexity. A full tub-to-shower conversion involves:

• Structural changes and demolition
• New plumbing and waterproofing systems
• Longer installation timelines and higher labor costs

By contrast, Quick Tub® focuses on accessibility without reconstruction, offering:

• Faster installation (typically 2 - 4 hours)
• Minimal disruption to the home
• Predictable costs without hidden plumbing or waterproofing expenses

This makes Quick Tub® especially appealing for seniors, caregivers and families who need a safer bathing solution quickly without the cost, complexity or permanence of a full bathroom remodel.

Top Reasons to Convert Your Bathtub to a Walk-In Shower

Converting a tub to a walk-in shower has become one of the most requested upgrades in modern homes, and for good reasons:

Accessibility & Safety

• Reduces slip and fall risks with a lower threshold
• Easier entry and exit for seniors, children and those with mobility issues

Functional Benefits

• Larger, more usable shower space
• Fewer hard-to-clean grout lines with solid surfaces or panels
• Can be upgraded with modern fixtures and showerheads

Aesthetic Improvements

• Eliminates bulky tubs for sleek, contemporary bathroom design
• Compatible with frameless glass doors and minimalist finishes

Resale Value

• Walk-in showers are increasingly desirable in the housing market
• Accessibility features can appeal to a wide range of potential buyers

Cost-Effective Alternative to Full Remodel

• Quick Tub’s® system avoids costly demolition and reconstruction

Planning Your Bathroom Tub to Shower Conversion Project

Good planning ensures smoother execution when it comes to the actual conversion of your bath into a shower. Therefore, keep the following steps in mind: 

1. Measure your existing tub. Accurate dimensions help you choose the right Quick Tub insert size (Narrow, Wide or Xtra Deep).
2. Define your goals. Do you need pure accessibility or do you care about a full modern shower aesthetic, or both? 
3. Determine water control plans. Will you need new handheld showerheads, grab bars or seating?
4. Check your building’s requirements. Plumbing codes can vary; that’s why we recommend you consult your local codes if you’re modifying drains or water supply. 

Planning with a system like Quick Tub® can significantly streamline the process, since you’re not dealing with demolition, heavy debris or major plumbing work typical of traditional remodels.

Choosing the Right Materials

Even with Quick Tub® providing a fast conversion path, if you do pursue a more traditional bathtub to walk-in shower conversion, materials matter. 

Shower Base Options

 

Wall Surround Options

Door & Fixture Choices

• Frameless glass: For a modern and open feeling
• Handheld showerhead: Essential for accessibility
• Grab bars: Improve safety and confidence

Incorporating Accessibility Features

If your main goal is safety and ease of use, consider:

• Curbless/zero-threshold entry: No bump to step over
• Grab bars: Placed near shower entrance and controls
• Fold-down seats: Great for stability while showering
• Adjustable handheld showerheads: Easier for all users

And with Quick Tub’s® Walk-Thru Insert system, you’re already addressing accessibility by lowering the tub wall while keeping the option to convert back when desired. For many households, combining Quick Tub® products with grab bars and non-slip flooring creates a highly accessible shower environment without the steep cost of a full renovation. 

The Complete Step-by-Step Tub to Walk-In Shower Conversion Process

This is your detailed roadmap, from planning to finishing touches: 

Step 1: Preparation and Demolition

• Shut off the water at the main valve.
• Protect your floors and fixtures with drop cloths.
• Remove the old trim and any loose tiles.
• If doing a full traditional conversion, extract the tub carefully. Cast iron tubs may require segmentation with a reciprocating saw.

Step 2: Assessing the Site & Handling Unexpected Issues

• Inspect the subfloor for rot or mold.
• Look for outdated plumbing or wiring.
• Consult a professional if structural repairs are needed.

Step 3: Critical Plumbing Adjustments

• Confirm the drain location. Traditional tub drains often differ from shower requirements.
• In a full remodel, you may need to upgrade drain size and relocate water lines.
• If staying with Quick Tub’s® Walk-Thru Insert, you can almost always retain existing plumbing and avoid major moves.

Step 4: Installing the New Shower Pan

For a traditional build:

• Set a prefabricated shower pan on a mortar bed.
• Ensure the slope; the water must flow efficiently to the drain.

With Quick Tub®:

• Install the Quick Tub’s® Walk-Thru Insert as per the template. It uses your tub’s existing structure.

Step 5: Installing Backer Board and Waterproofing

• Use a cement board or some waterproof foam boards (e.g., a Kerdi-Board).

Keep in mind that waterproofing is EVERYTHING, because failures here lead to leaks and damage you absolutely want to avoid. 

Step 6: Installing Tile or Wall Panels

• For traditional: tile walls, grout and seal.
• For accessibility-focused remodels: prefabricated acrylic panels are fast and clean.

Quick Tub’s® system can be paired with upgraded surrounds if you do want a more finished shower aesthetic over time.

Step 7: Final Touches - Fixtures & Doors

• Mount the shower trim and other hardware.
• Install the glass doors or a curtain rod.
• Add grab bars and accessories.

Small upgrades like modern fixtures or matte-black trims can elevate the overall design without requiring a full remodel.

Your Dream Shower Awaits

From enhanced safety and accessibility to a refreshed look and improved functionality, a walk-in shower conversion can truly transform your bathroom experience. Quick Tub’s® innovative insert and cap systems offer a cost-effective, fast and reversible alternative to traditional remodeling, giving you the benefits of both safety and bathing flexibility.

If you’re ready to convert your tub to a walk-in shower, explore the Quick Tub® Walk-Thru Insert and Quick Tub® Cap options today, and take the first step toward a safer, more enjoyable bathroom.

FAQs - Frequently asked questions 

Is a tub to shower conversion a good idea?

Yes, a tub cut out kit is a smart upgrade for homeowners who want better accessibility and modern design. It also reduces the risk of falls and provides safer daily use in general.

How much does it cost to do a tub to walk-in shower conversion?

The cost to convert a tub to a walk-in shower depends on whether you choose full demolition or a minimal-remodel option like Quick Tub®. Traditional conversions can cost between $3,000 and $8,000, while Quick Tub’s® system keeps most projects well under $2,000. 

How long does it take to convert a tub to a walk-in shower?

A typical full remodel can take several days to over a week because of demolition, plumbing changes, waterproofing and tile work. In contrast, Quick Tub’s® method installs in just a few hours since it uses your existing tub structure and avoids extensive construction. Many homeowners choose Quick Tub® specifically for its fast turnaround, especially after seeing the tub to shower conversion before and after timelines.