Tub-to-Shower Conversion: 2026 Cost in Port Charlotte and Sarasota, Options and What to Watch For

A tub-to-shower conversion removes an existing bathtub, usually a standard 60-inch alcove tub, and replaces it with a walk-in shower in the same space. In 2026, a professionally built tub-to-shower conversion in Port Charlotte typically costs $12,000 to $22,000, with Sarasota projects often landing in the upper half of that range or a little above. A prefab shower kit costs less; a tiled shower with frameless glass and a curbless entry costs more.

We do more of these than any other bathroom job in Charlotte and Sarasota counties, mostly for homeowners who have not used the tub in years and are tired of stepping over a 15-inch wall to shower. Here is what the work actually involves, what drives the price and the questions to ask before you hire anyone.

What Happens in a Bathtub to Shower Conversion

• Demolition. The tub, surrounding tile and backer board come out down to the block or studs. On a slab home, the tub often sits directly on the concrete.
• Inspection of what is underneath. Old tubs often hide water damage in the bottom plate of the wall, rusted drain lines or soft drywall behind the valve. This is the moment to fix it.
• Drain conversion. A tub drains through a 1-1/2 inch line at one end. The Florida plumbing code generally calls for a 2-inch trap and drain for a shower (your inspector has the final word), and the drain usually moves toward the center or to a linear drain at the back wall. On a slab, that means cutting concrete.
• Valve replacement. The old tub-and-shower valve is replaced with a pressure-balancing or thermostatic valve, often moved to a more convenient height with a handheld added.
• Shower pan and waterproofing. A sloped pan (mortar bed, foam tray or prefab base) and a full membrane on walls and floor, then a 24-hour flood test.
• Finish. Tile or wall panels, a recessed niche, a bench if wanted, and glass.

Your Main Options

• Prefab acrylic or fiberglass base with wall panels. Fastest and least expensive. Fewer grout lines to clean. Limited sizes and looks.
• Solid-surface or cultured stone wall panels over a tiled or solid base. A middle path with a seamless look and low maintenance.
• Fully tiled shower. Custom size, niche, bench and any tile you like. Highest cost and the most dependent on installer skill, because the waterproofing behind the tile is what really matters.
• Low curb or curbless entry. A low 2 to 3 inch curb is the standard. A curbless entry requires recessing the slab and adds cost, but removes the step completely.

Tile or prefab: which lasts longer?

Both can last decades if the water management is right, and both fail early if it is not. A prefab base is molded in one piece, so the floor cannot leak through grout, but it only comes in set sizes and the wall panels must be sealed carefully where they meet the base. A tiled shower can be any size and shape, but the tile and grout are not the waterproofing; the membrane behind them is. When we see a tiled shower fail after a few years, it is almost always because tile was set over plain cement board or drywall with no membrane, or the pan was never sloped. If budget is tight, a well-installed prefab system beats a cheaply built tile shower every time.

Tub-to-Shower Conversion Cost in 2026

Typical installed ranges in Port Charlotte, Punta Gorda, North Port and Sarasota, including permit:

• Prefab base and panel conversion: typically from about $9,000 to $14,000.
• Tiled walk-in shower, low curb, framed or semi-frameless glass: typically $12,000 to $22,000.
• Tiled shower with curbless entry, linear drain and frameless glass: typically $15,000 to $26,000.
• Conversion as part of a full guest bath remodel (new vanity, floor, toilet, lighting): typically $18,000 to $32,000.

What moves the price

• Drain relocation through the slab. The farther the drain moves, the more concrete is cut and patched.
• Hidden damage. Rot or termite damage at the bottom of a frame wall, or a corroded cast-iron drain line, is common in older Charlotte County homes.
• Tile size and pattern. Large-format porcelain, herringbone floors and mosaics take more labor.
• Glass. A fixed frameless panel is less than a full frameless enclosure with a hinged door.
• Sarasota vs Port Charlotte. Labor and permit costs tend to run somewhat higher in Sarasota and on the barrier islands, and condo buildings often have rules for work hours, elevators and debris removal that add time.

Pros and Cons of Converting a Tub to a Shower

Pros

• Safer entry, especially for older homeowners or anyone with knee or hip problems.
• A larger-feeling shower and a more modern bathroom.
• Room for a bench, grab bars, a handheld shower and a niche.
• Easier to clean than a tub with a shower curtain.

Cons

• If it is the only tub in the house, families with small children may miss it, and some buyers will too.
• Slab drain work adds cost and a plumbing inspection.
• A 60-inch alcove gives a shower about 60 by 30 to 32 inches; that is comfortable, but not large.

Resale: Should You Keep One Tub?

Many real estate agents advise keeping at least one bathtub in a home that may be sold to a family. In much of Southwest Florida, where many buyers are retirees or second-home owners, a walk-in shower in the primary bath is usually the more attractive feature. If you have two bathrooms, converting the primary and keeping a tub in the guest bath is a common middle ground.

The Florida Angle

Slab homes. Almost every tub in a Port Charlotte or North Port ranch home sits on concrete. Moving the drain means saw-cutting the slab, digging, re-piping, inspection and patching. Some newer homes have post-tensioned slabs that must be scanned before cutting.

Block exterior walls. Many SWFL tubs sit against an exterior concrete block wall. Moisture can come through block, so the shower wall assembly should include a proper membrane, not just cement board and tile.

Humidity and ventilation. Mold behind old tub surrounds is the number one surprise we find. A new shower needs an exhaust fan ducted to the outside, not into the attic.

Permits. Changing a drain or valve requires a plumbing permit in Charlotte and Sarasota counties. A contractor who offers to skip it is skipping the inspection that protects you.

Common Mistakes

• Keeping the tub drain location and sizing instead of converting it properly.
• Installing tile over drywall or plain cement board with no waterproofing membrane.
• No flood test before tile.
• Glass ordered before the tile is finished, so it does not fit.
• Forgetting blocking for grab bars while the walls are open.

How to Choose a Contractor

• Is the drain being converted to a shower drain, and is a permit included?
• What waterproofing system will you use, and do you flood test it?
• How do you price hidden damage, and is that in writing before work starts?
• Will you add blocking for grab bars now, even if I do not install them yet?
• Who measures and orders the glass, and when?

Frequently Asked Questions

How long does a tub-to-shower conversion take?

Typically one and a half to three weeks, including slab work, inspections, a 24-hour flood test and glass fabrication. Prefab systems can be faster.

Can a tub-to-shower conversion be done in one day?

A one-day job is usually a prefab liner installed over or in place of the tub without real changes to the drain or valve. That can work in a rental, but it is not the same as a properly rebuilt shower.

Does a tub-to-shower conversion add value?

In SWFL markets with many retirees and second-home buyers, a well-built walk-in shower is usually a selling point, especially in the primary bath. Keep one tub in the house if you expect to sell to young families.

Can I convert a tub to a curbless shower?

Yes. On a slab home, the shower area is recessed so the floor runs straight in. It usually adds a few thousand dollars over a low-curb conversion.

Will my shower be big enough?

A standard alcove becomes a shower about 60 inches wide and 30 to 32 inches deep. If you want more room, we can sometimes borrow space from a linen closet or vanity.

Bottom Line

A tub-to-shower conversion is one of the best-value bathroom upgrades in Southwest Florida, but most of the money and most of the risk sit in places you will never see: the drain under the slab, the membrane behind the tile and the slope under your feet. Pay for those, then pick the tile you love.

Want a straight answer for your own home? Call Prestigious Home Improvements at (941) 223-4875 for a free in-home estimate anywhere in Charlotte, Sarasota and Lee counties. Licensed CRC1327831.