Walk-In Shower Conversion Cost in Columbus, Ohio (2026)

Converting a tub to a tiled walk-in shower in Columbus usually lands between $17,900 and $35,900 for a standard 8-by-8 bathroom. That is the mid-range to high-end band of the estimator on this site, and it covers the whole room rather than the shower alone. A prefabricated swap costs far less. A curbless pan, a layout change, or a second-floor bathroom pushes the number higher.

Reviewed September 2026 by a licensed Ohio general contractor.

What does a walk-in shower conversion cost in Columbus?

A walk-in shower conversion is priced as a bathroom project, not as a shower line item. Once the tub comes out, the framing, the drain, the waterproofing, the floor and usually the vanity are all in play, and the room has to be tiled and painted around the new opening. These planning ranges are whole-room ranges for that reason.

Two tiers describe the job. Mid-range is a tiled conversion with the plumbing staying put: full demo, new backerboard and waterproof membrane, about 90 square feet of tiled surround, a tiled floor, a new fan and light, and a standard shower base. High-end is the same job with a custom tile pan, a recessed niche, relocated plumbing for a new layout, and a frameless glass door.

Both columns exclude permit fees, mold or asbestos remediation, a panel upgrade, HVAC work beyond the exhaust duct run, and anything outside the bathroom footprint.

What actually changes when a tub becomes a walk-in shower?

Four things, and the shower itself is the cheapest of them.

The drain moves. A tub drain sits at one end of the alcove. A shower drain sits in the middle of the pan, or wherever the pan is built to fall. On a joisted floor that means opening the ceiling below or the floor above to re-run the trap arm. That single change is why the same room gets quoted two very different ways, and it is the same arithmetic set out in the case for why moving the toilet is the most expensive decision.

The wall gets a waterproof assembly. Tile over drywall is not a shower. Both scopes call for half-inch backerboard plus a waterproof membrane before any tile is set.

The tile hours appear. This is the largest single jump in the estimate. The standard tier carries zero tile man-hours because it uses a panel or insert surround. Mid-range carries 40 tile man-hours at standard size and high-end carries 56. At the $85 hourly rate the estimator uses, that is about $3,400 and $4,760 of labor that does not exist on a prefabricated job, before any tile is bought.

The floor is rebuilt at the opening. Pulling a tub leaves a gap in the finished floor and, in inner-ring houses built before 1960, often a band of mortar-bed tile or a soft spot under the apron.

Curb or curbless: what does that decision cost?

A curbed shower sits on top of the existing floor: the pan is built or set above the subfloor, a low curb holds the water in, and the structural work stops at the drain. That is the mid-range assembly.

A curbless shower has to lose that height somewhere. Either the joists are notched and sistered so the pan can be recessed, or the whole floor is built up to meet the shower. Both are framing work rather than tile work, which is why curbless conversions land in the high-end tier, where framing rises to 24 man-hours and the scope adds blocking and a custom tile pan, or in luxury, where a new subfloor and joist repair are listed outright.

The door follows the same split. The shower door allowance runs $30 to $50 at the standard tier, which is a curtain rod, then $50 to $1,000 at mid-range, $800 to $2,000 at high-end, and $1,500 to $3,500 at luxury, where frameless glass is the default. Frameless glass is measured after the tile is set, which is why it lands at the end of the schedule.

Whichever you choose, check the finished opening against the clearance each fixture needs before you approve a drawing. The recommended figures are set out in the notes on NKBA bathroom clearances, and a shower that fits on paper but blocks a vanity drawer becomes a change order after the tile is in.

What did one Columbus conversion actually cost?

A Columbus bath the contractor behind this site priced is exactly this job. The tub came out for a walk-in shower, the room was expanded about 50 percent into an adjoining closet, the closet was rebuilt with built-ins and a linen cabinet, the floor and shower surround were tiled, and the galvanized drains were replaced with cast iron and PVC. There was no rewiring, and the owner supplied the finishes.

It ran 155 man-hours across 11 working days. At the same $85 rate that is $13,175 of labor. Add one project-management hour at $155 to meet the plumber on site, a $2,000 plumbing subcontract and about $2,000 of materials, and the job totals $17,330. Times the 1.2 construction contingency, the number is $20,796, with the owner's fixture selections on top.

That figure sits in the upper part of mid-range and the lower part of high-end: high mid, not luxury. Against the table above it lines up with the large and primary-size mid-range cells, which is what a room that grew by half and had its drains replaced should cost.

The day-by-day shape explains the schedule better than the price does: a day to mobilize, two days of demo because the subfloor was concrete, a day of framing, a plumber day, three days of drywall work and priming, three days of floor tile, surround tile and grout, and a day to set the vanity, toilet and trim. Finish paint was an added day nobody had asked for.

What moves the number up or down?

Size. The estimator scales the whole job by floor area: 0.75 for a 5-by-8 bath, 1.0 for 8-by-8, 1.2 for 8-by-10, and 1.5 for a 10-by-12 primary bath. A mid-range tiled conversion runs $14,455 to $20,070 in the smallest room and $24,845 to $32,688 in the largest. The tier-by-tier comparison across all four sizes is in primary bathroom versus hall bathroom remodel cost.

Where the bathroom sits. Site difficulty is a flat multiplier on labor, subcontracts and materials. A second floor adds 5 percent, which on the mid-range base range of $16,310 to $19,292 is $816 to $965. A tight hallway adds 10, an occupied home 20, and a basement bathroom 30, which on that same base is $4,893 to $5,788. The reasons stack, and so do the percentages, up to 35.

Whether the layout changes. Moving the shower, the toilet or the vanity is the line between mid-range and high-end. The high-end scope adds wall framing for the new layout and a relocated plumbing rough, and both the hours and the subcontract step up with it.

Tile choice. Large-format tile is faster to set than small mosaic; the worked job used $350 of tile consumables where mosaic would have run $500. The tile hours move from 40 to 56 between mid-range and high-end, about $1,360 of labor before the tile itself.

Running the combination you are actually considering through the bathroom cost estimator takes a couple of minutes and shows how each choice moves the total.

How long does a walk-in shower conversion take?

Plan on two to three weeks of working days, four at the longest. The worked job took 11 working days, which spans more than two calendar weeks once weekends fall in the middle. The estimator's hour totals agree: mid-range is 146 man-hours at standard size, about nine crew days at 16 man-hours a day, and high-end is 188, about twelve.

Tile sets the calendar, not the plumbing: floor tile, surround tile and grout were three separate days, each waiting on the one before it. A conversion that keeps the plumbing in place and uses a prefabricated base runs about a week, which is the comparison made in tub-to-shower conversion cost.

Do you need a permit for a walk-in shower conversion in Columbus?

Usually yes. The Columbus Department of Building and Zoning Services requires a permit when plumbing or electrical is moved or added and when framing is altered. A walk-in shower conversion relocates the drain and the valve almost by definition, and one that takes in a closet moves a wall as well. A straight fixture swap that leaves every line in place generally does not.

Two code items are worth knowing before a drawing is approved. The Ohio Plumbing Code sets the minimum shower receptor size and requires the pan to be tested before it is covered. The Ohio Residential Code requires bathroom receptacles to be GFCI protected and mechanical exhaust where there is no operable window. Permit fees sit outside every range on this site.

What to do next

Decide first whether the plumbing moves, because that decision separates a one-week project from a three-week one. Then pick the pan: curbed keeps the job in mid-range, curbless steps it into high-end framing.

The full tier-by-tier breakdown, including where the money goes, is in the guide to bathroom remodel cost in Columbus. If you know your size and tier, the bathroom cost estimator produces the same figures against your own fixture allowances.