Walk-In Tub Installation Checklist: Before You Order

ElderHearth offers general information, not installation, electrical, plumbing, or medical advice. Requirements differ by model and by local code. Use the manufacturer's drawing and a licensed local contractor for your bathroom.

This walk-in tub installation checklist exists because a tub can fit the bathroom and still fail the project. The tub may not fit the path from the curb, the water heater may not support the fill, or the person may not want to sit through the bathing routine. This checklist puts those checks before the order, while they are still cheap to change.

Start with the bather

Before comparing models, watch the routine the tub is meant to support. Can your parent get to the bathroom, undress, sit, bathe, stand, and leave with the help that is actually available? Does your parent want a tub, or is a shower the more realistic path?

A walk-in tub requires sitting in the tub while it fills and drains. For someone who cannot tolerate a long sit, who needs two-person assistance, or who mainly needs a shower, a different bathroom plan may serve better; our walk-in shower guide covers that route. That is an adaptation question for the person and their clinician or therapist; this page cannot make a diagnosis.

Write down:

• Who will use the tub, and how often.
• Whether they can transfer from a walker, wheelchair, or standing position with the help available at home.
• Who will be home during bathing, and whether they can help in an emergency.
• Whether the person prefers a bath or a shower after trying the routine in words or in a demonstration.

Confirm the exact model and its drawing

Get the specification sheet or drawing for the exact model; use the family page only to shortlist. The sample quote lists the Transfer32 at 32 by 52 inches. Ella's wheelchair-transfer page, read October 14, 2026, lists the 24 inch seat, 36 inch door, 7 inch threshold, and 4.5 inch threshold-lowering option. It lists an unoccupied capacity of 65 to 110 gallons across the transfer models. Ella's hot water page gives the manufacturer's guidance: a 75 gallon or larger tank for most homes, and it does not recommend a tank under 75 gallons. The largest models, such as the ShaK and the Big4Two, may need a dedicated large heater in addition to the one serving the rest of the home. A local plumber has to judge that guidance against the model table, household demand, and recovery rate. Treat those as catalog figures for model selection and verify them against your water heater and bathroom.

Check the drawing for:

• Overall length, width, and height.
• Door swing and the clear floor space the door needs.
• Seat width, seat height, and the transfer path onto the seat.
• Threshold height and any lowering option.
• End panels and whether the layout needs one or two.
• The drain and supply locations.
• The access panel or service clearance the manufacturer requires.

That 36 inch door is a tub dimension; the bathroom doorway, hallway turn, and stair landing must still pass the packaged tub.

Measure the full path

Walk the route from where the freight truck will stop to the bathroom. Measure the narrowest points using the packaged dimensions. Check:

• The exterior door, porch, steps, and gate.
• Interior doorways and hallway turns.
• Stairs, railings, and landings.
• Elevator dimensions, weight limits, and building rules.
• The final turn into the bathroom and the space to set the tub down.
• Floor protection and any threshold or trim that would have to come off.

Photograph each tight point with a tape measure in the frame. Ask the manufacturer and the installer to confirm the packaged dimensions and the minimum clearances in writing. If the path does not work, stop the order before delivery; a truck at the curb is too late.

Check the room's plumbing, electrical, and hot water

Requirements are model-specific. Do not rely on a general amperage, breaker, wire, drain, or water-heater rule from a similar tub. Ask for the installation manual for the exact model and give it to the licensed trades who will do the work.

The plumber and electrician should confirm:

• The drain size, location, and fall available in this bathroom.
• The supply lines and faucet connections.
• The dedicated GFCI-protected circuit or circuits the exact model and configuration require, with the amperage and count from the current manual.
• The breaker, disconnect, grounding, and outlet location the model requires.
• Clearance for service and access to components.
• The water heater's capacity and recovery rate against the tub's fill.
• Ventilation and moisture control for the room.

The sample quote says Ella's Bubbles does not sell installation; Ella's installation page describes the same split. Its electrical page describes dedicated GFCI-protected circuits; the count and amperage follow the exact configuration, the current manual, and the electrician. Wiring and structural instructions belong to the manufacturer's manual and the licensed trades.

Decide who does delivery, bring-in, placement, and installation

These are separate jobs, and the quote should name who does each one:

The sample quote we reviewed includes curbside delivery with a liftgate and no installation. Our walk-in tub comparison has the model comparison and quote checklist. Curbside means outside the house; ask where the truck will stop and who takes over from there. Record visible shipping damage at delivery, inspect for hidden damage before installation, and report a freight claim within the carrier or manufacturer window; Ella's shipping page states 48 hours for damage claims, so confirm that deadline for your order.

Put the construction scope in writing

Installation is more than setting the tub. Depending on the bathroom, the work can include demolition, disposal, framing, drywall, waterproofing, tile, flooring, trim, plumbing, electrical, permits, and inspection. Some jobs need a general contractor to coordinate the trades.

Ask for a written scope that lists:

• What is removed, and who hauls it away.
• What is opened, and how it is closed and finished.
• What is included in the quoted labor and materials.
• What is excluded, including any work that might appear after the wall is open.
• The change-order rate and who approves changes.
• The permit and inspection responsibility.
• The start date, duration, and payment schedule.
• The labor warranty and who honors it.

Compare two installation quotes only after both cover the same work. A lower number that leaves out the permit, the disposal, or the wall repair covers less work; compare the full scope. If you are weighing funding, start with our walk-in tub coverage guide before you order. For the wider room plan, our aging-in-place modification guide covers the rest of the bathroom and the house.

Use the pre-order checklist

Print the blank installation checklist (PDF) or download the editable CSV. The filled example (PDF) is fictional and shows how to mark an item "to confirm" instead of guessing; its CSV version is editable. For the line-by-line reading of a manufacturer quote, see the quote example. If the brand decision is still open, see the Ella's Bubbles review.

Bring the completed checklist to the contractor and the manufacturer. Resolve every item before you pay. If a model cannot be confirmed against the room, ask for a different model or a different bathroom plan.

Frequently Asked Questions

Will a walk-in tub fit through my doorway? The door's nominal width alone does not settle it. Use the packaged tub dimensions, the bathroom doorway, hallway turns, stairs, and landing space. Measure the full path and photograph each tight point with a tape measure in the frame. Have the manufacturer and the installer confirm the packaged dimensions and the minimum clearances in writing. If the path does not work, stop the order before delivery.

What electrical requirements does a walk-in tub have? They differ by model and by the features installed. Ask for the exact model's installation manual and have a licensed electrician confirm the dedicated GFCI-protected circuit or circuits, breaker, disconnect, grounding, and clearance. The count and amperage follow the exact configuration and local rules; this page gives no wiring instruction.

What does curbside delivery mean? The freight carrier leaves the tub at the curb or another agreed point outside the home. It does not include bringing the tub inside, up stairs, or into the bathroom unless the quote says so.

Who installs an Ella's Bubbles tub? Ella's quote materials say installation is not sold by Ella and is quoted by the installer or contractor the customer chooses. Some dealers may offer a package, so confirm the sales channel and who is responsible for the work.

Who pulls the permit? That depends on local rules and on the contractor you hire. Ask before work starts, and get the responsible party named in the written scope.

Sources

• Ella's Bubbles, wheelchair transfer tubs, read October 14, 2026 (seat, door, threshold, capacity, water heater field).
• Ella's Bubbles, installation cost and what is involved, hot water heater requirements, electrical requirements by model, and shipping (damage window), read October 26, 2026.
• Anonymous merchant sample quote, Transfer32, dated October 22, 2026, for the 32 by 52 inch model dimensions and the curbside delivery line.
• ElderHearth, best walk-in tubs, for the model comparison and quote checklist.