Tub-to-shower conversions for Central Iowa bathrooms

Aging-in-place tub-to-shower conversion in Central Iowa replaces a standard step-over tub with a curbless or low-threshold shower built to cut fall risk for homeowners who plan to stay in their own house longer. This segment needs more than a cosmetic swap: clear floor space for a walker or wheelchair, grab bar blocking behind the tile, slip-resistant flooring, and an entry height that doesn't require a step at all.

Why this matters for aging-in-place homeowners

The CDC lists falls as the leading cause of injury among adults 65 and older, and the bathroom is one of the most common rooms where they happen. A tub with an 18-inch wall you have to step over is a fall risk every single time it's used, twice a day, for years.

Central Iowa's older housing stock compounds the problem. Many homes in Des Moines, Ankeny, and Urbandale built in the 1970s and 1980s have tub-shower combos sized for a family with young kids, not for someone using a cane or a walker decades later. An aging-in-place bathroom remodel built around a curbless shower fixes the layout problem instead of bolting grab bars onto a tub that is still hard to get into.

That pattern repeats across the region's aging homeowner base in 2026, and it is the accessibility change Phoenix Construction Solutions is asked about most often inside a bathroom scope.

Assess your current tub for accessibility gaps

Start with a walk-through, not a contractor call. Measure what is already working against you before deciding what to change.

• Measure step-over height from floor to tub rim — most standard tubs run 14 to 18 inches
• Check tile and tub surface for slip when wet, barefoot
• Note where existing grab bars are mounted and whether they hit blocking or just drywall anchors
• Measure the door swing and the clear floor space in front of the tub
• Photograph lighting levels — dim bathrooms hide wet spots

Map your walking path and clearances

A conversion only works if the whole path to the shower is accessible, not just the fixture.

• Measure doorway width — 32 inches of clear opening is the standard accessibility benchmark
• Check for a turning space of roughly 60 inches if a wheelchair or rollator needs to pivot inside the bathroom
• Flag thresholds, rugs, and room-to-room transitions that create a trip hazard
• Confirm a light switch or motion sensor is reachable without entering the wet zone first

Choose your entry threshold and shower base type

This is the decision that separates a real accessibility upgrade from a surface-level swap.

• Curbless entry: pan slopes to a linear drain, zero step, best for wheelchair or walker access
• Low-threshold entry: a half-inch to one-inch curb, easier to retrofit into an existing subfloor
• Pre-formed acrylic base with a built-in low curb: faster install, fewer framing changes
• Custom tile pan with an integrated bench: most flexible for irregular bathroom footprints

Getting subfloor pitch and waterproofing right on a curbless pan is not a weekend job. This is where a wheelchair-accessible home renovation plan from a licensed, insured contractor matters, because a bad slope sends water past the drain and into the subfloor.

Plan grab bar and seating placement

Grab bars only work when they are anchored into blocking.

• Mount horizontal bars 33 to 36 inches above the floor per ANSI A117.1 guidance
• Add a vertical bar near the entry for a stabilizing grip while stepping in
• Install blocking behind tile before the walls close up — retrofitting later means cutting tile
• Consider a fold-down or built-in bench for seated bathing
• Position the shower control and handheld wand within reach of the seat

Select slip-resistant, low-glare flooring

Floor finish matters as much as the shower itself for fall prevention.

• Choose textured porcelain tile over painted or high-gloss surfaces
• Keep grout lines tight and consistent so footing stays even
• Match bathroom flooring to the shower pan finish so there is no visual or physical step change
• Skip small mosaic tile in the pan — more grout lines means more slip variance underfoot

Get a licensed contractor's accessibility assessment

Once layout and fixtures are mapped, a walk-through with a licensed, insured contractor catches what a homeowner checklist misses: subfloor rot under an old tub, out-of-code electrical near the shower, or a joist layout that will not carry a custom pan without added framing. Phoenix Construction Solutions handles that assessment while scoping a tub to shower conversion in Central Iowa, before any demo starts. Call (515) 505-8781.

Schedule around permitting and inspection timelines

Iowa municipalities generally require a permit when plumbing or electrical changes as part of a bathroom conversion, and inspection scheduling adds time on top of the build.

• Confirm permit requirements with your city before demo day
• Build in a buffer for rough-in inspection before drywall closes the walls
• Ask your contractor which inspections are mandatory for your scope
• Plan around a single working bathroom if this is the only full bath in the house

Comparing your options in 2026

Verdict: for a homeowner staying in the house long term, curbless conversion wins on safety — Buy. A low-threshold shower is the sensible middle ground — Hold if a full curbless rebuild is not on the table yet. A walk-in tub fits someone who wants to soak and has no wheelchair access need — Hold. Shower refinishing on its own is a Skip for anyone whose real problem is the step-over height.

Common mistakes aging-in-place homeowners make

• Refinishing the tub instead of replacing it — a fresh coating does not lower step-over height or create a curbless entry
• Adding grab bars without blocking — a bar screwed into drywall alone fails under real body weight
• Skipping the doorway measurement — a curbless shower helps nobody if the bathroom door is 28 inches wide
• Choosing high-gloss tile for the shower floor — it photographs well and turns slick the moment it is wet
• Treating this as a bathroom-only decision — hallway lighting and the path from the bedroom matter just as much for fall prevention

What a realistic 2026 scope looks like

Most aging-in-place conversions in Central Iowa touch four trades: demolition, plumbing, electrical, and tile. Each one has its own inspection point and its own lead time, which is why a conversion scoped as "just swap the tub" tends to run long.

If the bathroom is on a slab or over a crawlspace, drain relocation for a linear drain drives the schedule. If it is on a joisted floor, framing access is easier but the joist layout dictates how low the pan can sit. Ask any contractor bidding the job which of those two conditions your house has — the answer should come before a number does.

Homeowners comparing bids should also confirm license and insurance status directly rather than taking it from a website. It takes minutes and it filters out most of the risk in a bathroom scope that includes plumbing and electrical work.

FAQ

One last thing

The detail homeowners skip most often is not the shower — it is the transition between the bathroom floor and the shower pan. A curbless entry only works if that transition is flush and tested wet, not just measured on paper. Walk it barefoot with water running before you sign off on the finish in 2026.

Related guides

• Bathroom remodeling in Des Moines, Iowa
• How long does a bathroom remodel take
• How to verify a contractor's license and insurance in Iowa