The bath
Pick a common job to start, then replace every rate with a tub invoice and a crew you have timed. Changing scope, unit, or door fills starting hours and material only when you have not already edited that field.
Hours and material rates
These start from the scope, unit, and door you picked. They are ballpark crew figures, not a tub catalog or a guarantee.
Your costs
Payroll burden covers employer taxes, workers’ compensation, liability insurance, and paid time off. Underestimating it is how a $3,499 alcove swap that looked profitable was not.
Your bid
- Tubs
- Travel
- Crew hours
- Loaded labor
- Unit and door
- Alcove, tile, extras
- Travel & other
- Overhead
- Total cost
- Profit
- Price per tub
- Effective hourly rate
- Walk-away price
A bid link carries your own rates — wage, burden, overhead, and target margin — so the page reopens exactly as you left it. Send it to yourself or your crew. The numbers ride after the #, which is never sent to a server, so copying a link uploads nothing. The customer should get the price, not the link.
Same bath, four alcoves
| Scope | Hours | Price |
|---|
Same bath, five units
The upgrade a homeowner is asking for when they say “can we do the whirlpool instead?” — same alcove, same door, starting unit kits. Matching the soaker special on a whirlpool job is the losing bid.
| Unit | Hours | Price | vs soaker |
|---|
Same bath, who bought the tub
The $995 “just install what I bought on Amazon” special. Zeroing the tub invoice is not a free set — setting their unit still takes hours, and a drain that does not line up is a second trip. Should I install a customer-supplied walk-in tub?
| Who supplies | Hours | Your bid | At their number |
|---|
Same bath, when you can work
The “can you start Saturday? She is not climbing that tub again” special. A weekday they leave is the bid you already have. Only-bath-still-in-use is the same wage on a slower set. After-hours is time-and-a-half plus a second evening trip because you cannot leave the alcove open overnight. Should I take a Saturday walk-in tub call?
| Access | Hours | Your bid | At their number |
|---|
Where the hours go
Transparent arithmetic from your own inputs. The starting hours and material rates are common ballpark figures, not an industry standard, a benchmark, or a guarantee — time your own crews and replace them.
Hand the customer a proposal
The price above is for you. This is the page you print or save as a PDF and give to the customer — your details, their details, the scope, the deposit split, and a line for them to sign. Your business details are saved on this device so you only type them once; the customer’s details are never saved.
Everything on the printed page is text you typed or a number this calculator worked out. It contains no warranty, lien, or cancellation wording — those depend on your jurisdiction and your contract, and this tool is not the place to invent them.
Common questions
Why is the tub itself half the price?
Because that is what the job mostly is. On the defaults the unit and materials invoice at $1,875.60 against $643.19 of labor for 11.78 hours, in a $3,757.32 price. Walk-in tubs vary enormously in dealer cost — a soaker and a hydrotherapy unit with a heated seat are not the same purchase — so your invoice cost, not your hourly rate, is what decides whether this bid works.
Is 11.78 hours realistic when installers quote two days?
Those are usually two different scopes. This is the tub swap: demolition of the existing unit, setting and levelling, supply and drain connection, and the surround. The second day in a typical retail quote is normally tile or wall-panel finishing, an electrical circuit for the pump and heater, or a door widening — real work, but it is not in this number unless you add it.
What is easy to miss when quoting one of these?
Three things, in rough order of how often they blow up a job: the drain, because a walk-in tub needs a fast-drain path and an existing shallow trap arm may not give one; the electrical, since most powered units want a dedicated GFCI circuit; and getting the unit into the room at all — they are large, rigid, and frequently will not pass an existing bathroom door. Walk those three before you commit to a price.
Should I be making medical or accessibility claims in the proposal?
No, and this tool deliberately produces none. A walk-in tub is often bought for a mobility or safety reason, but grab-bar placement, entry height, and whether a specific unit suits a specific person are clinical and code questions, not pricing ones. Quote the installation; leave the suitability judgment to an occupational therapist or the applicable accessibility standard.