Bath remodelers get shopped on a published $3,499 walk-in tub installed Facebook special. Those numbers cannot see the alcove or the unit. An acrylic soaker into an existing alcove with an inward door is a different job from an extra-wide whirlpool with a drain relocate, a tile surround, a cast-iron demo, and a sistered floor.
Open the free walk-in tub bid calculatorA walk-in tub is an alcove, then a unit, then a door. An alcove swap pulls the existing tub and sets the new one on the same drain. A relocate moves the drain or the supply. New construction has no demo. A custom opening widens the alcove or converts a shower. Matching an installed special on a relocate-plus-tile job is how a sold aging-in-place install becomes a loss when the plumbing and the surround eat the margin.
Homeowners usually start from the soaker special, then ask whether a whirlpool or an extra-wide unit is “a little more.” On the same alcove and the same door it is not a little more. A whirlpool is a pump and a GFCI. Extra-wide is handling and often a floor. The calculator prices all five units on the bath you already counted so you can quote the upgrade instead of matching the soaker number on a whirlpool job.
The cheap special is almost always an acrylic soaker into an existing alcove, an inward door, no tile, no cast-iron haul. A relocate extra-wide tile job is a different crew day. Matching a published installed number on that job is how a sold aging-in-place install becomes a loss.
A walk-in shower is tile, slope, and glass — a wet area, not a tub with a door. A hot tub is an outdoor spa with a crane and a pad. Toilet replacement is a commode swap. Water-heater replacement is a tank. This prices a walk-in tub: the alcove, the unit, the door, and the extras.
Load the wage with payroll burden. Add overhead as a share of direct cost. Then take margin as a share of the customer’s price, not a markup on cost. The walk-away number is total cost. A proposed price under that number loses money before you take anything out of it.
Owners also shop a second special: “I already bought one on Amazon — just install it for $995.” Zeroing the tub invoice drops the bid. The set hours stay. A drain that does not line up or a missing overflow kit is a second trip. The $995 soaker special can cover if their unit fits; the $1,499 showroom whirlpool special still loses. See should I install a customer-supplied walk-in tub for both worked examples on the same bath.
Families also call with a weekday number and ask you to start Saturday so she is not climbing the old tub. After-hours is time-and-a-half plus a second evening trip — you cannot leave the alcove open overnight. On the sample rates an acrylic soaker prices about $3,757.32 when they leave and $4,407.98 after hours. A $3,499 Saturday number covers the weekday and loses $27.39. A $5,800 Saturday whirlpool number loses even on the weekday. See should I take a Saturday walk-in tub call.
This page is a walkthrough of the arithmetic in the walk-in tub bid calculator. It is not a building-code determination, an accessibility approval, a plumbing design, or a price you should copy onto a contract.
Charge from tub count, unit, alcove, door, and extras — not a published $3,499 installed special. An acrylic soaker into an existing alcove with an inward door is a different job from an extra-wide whirlpool with a drain relocate, a tile surround, a cast-iron demo, and a sistered floor.
No. An alcove swap pulls the existing tub and sets the new one on the same drain. A relocate moves the drain or the supply. New construction has no demo. A custom opening widens the alcove or converts a shower. Matching an installed special on a relocate-plus-tile job is how a sold aging-in-place install becomes a loss when the plumbing and the surround eat the margin.
An acrylic soaker is the cheap-special unit. Cast is weight. Whirlpool is a pump and a GFCI. Air-jet is a blower. Extra-wide is handling. Inward swing is the cheap door. Outward is safer egress. Walk-through is a low threshold. Cast-iron demo, tile surround, grab bars, handheld, floor sistering, and a permit do not live in a published installed dump.
No. A walk-in shower is tile, slope, and glass — a wet area, not a tub with a door. A hot tub is an outdoor spa with a crane and a pad. Toilet replacement is a commode swap. Water-heater replacement is a tank. This prices a walk-in tub: the alcove, the unit, the door, and the extras.