Vertical Mobility at Home: Stair Lifts, Through-Floor Lifts and Home Elevators Compared
Getting between floors is the decision that follows most of the other accessibility work: once the bathroom is usable, the staircase is what decides whether the whole house is. This page compares the three routes on published cost and on what each one actually demands from the building, and collects the design points - cab size, controls, lighting, contrast - that decide whether the result is usable rather than merely installed.
| Option | Published 2026 cost | Space it needs | Structural work | Who it suits |
|---|---|---|---|---|
| Stair lift | $2,900 - $25,000 (straight run $3,500 - $7,500; curved or multi-landing $8,000 - $15,000+) | The staircase itself - the rail mounts to the treads, so no floor space is given up | Minimal: no shaft, no pit, no machine room; a straight rail is cut to length | Someone who can still transfer onto a seat and who wants to keep both floors in use without building work |
| Through-floor / compact home lift | Compact home lifts publish around $25,000 - $40,000 installed from US suppliers | A small floor opening on each level (typically a closet-sized footprint), plus landing clearance at each stop | A floor opening and structural support, but no full hoistway, pit or machine room in the self-supporting designs | A house with no space for a shaft where a wheelchair or scooter still has to change floors |
| Traditional home elevator | $25,000 - $75,000 installed, averaging around $40,000 (manufacturers publish starting prices of $30,000 - $40,000, with larger configurations past $80,000) | A rated shaft, and a reinforced pit at the bottom stop; the footprint is dedicated | The largest: shaft construction, structural framing, and a dedicated electrical run | A household planning to stay long term that can give up the floor area and wants the wheelchair to travel with the person |
Every range above is a published figure; the cost guide on this site carries the range the matching work is quoted against, and the sources are listed at the foot of this page.
Plan the shaft before you need it
The cheapest elevator is the one the house was designed for. Where a multi-storey home is being built or substantially renovated, stacking a closet, study or spare bedroom directly above the one below creates a vertically aligned space that can later become a shaft with minimal structural demolition. The same logic applies to a retrofit: put the lift where the floors already align rather than where the furniture currently sits.
Two placement rules matter more than they look. Put the lift on the main circulation path, so it is reached from every part of the house rather than from one corridor. And do not let a staircase - especially one designed to encourage people to take the stairs - hide or obscure the lift entrance, or the household talks itself out of using it.
Where a shaft will not fit
In an existing house with a tight plan, the shaft can be built as an external addition mounted to an outside wall. That removes the internal footprint problem and pays for itself in usable floor area, at the cost of an exterior envelope to weather and insulate. In tighter budgets again, a self-supporting through-floor lift avoids the hoistway entirely - the trade is cab size and travel height.
Size the cab for the worst day, not the average one
A lift bought for a walker is often too small two years later. Size the cab and the waiting area at each landing for a wheelchair, a mobility scooter and an emergency medical gurney - because the day the lift matters most is usually the day someone arrives by stretcher, and a cab that cannot take one has failed at the moment it was needed.
Inside the cab, continuous handrails on all walls give something to hold through the start and stop of travel, which is when balance is lost. On the controls, large buttons and unambiguous floor naming matter: the ground floor should be recognisable at a glance, without decoding an abbreviation.
Lighting and contrast decide whether it gets used
Match the light level inside the cab to the corridor it opens onto. A bright cab opening into a dim hallway - or the reverse - forces the eye to re-adapt at the exact moment someone is stepping across a gap, and that is a fall risk that has nothing to do with the machinery.
The dementia-friendly rules are the same rules that help everyone: finish the doors and the call buttons in a tone that contrasts with the adjacent wall so they are findable, and keep the floor finish and tone continuous from corridor into cab. A stark change of floor colour at the threshold reads as a step or a hole, and a person living with dementia may refuse to cross it - or try to step over it.
Aging in Place questions we get asked in Tucson, AZ
Which is cheaper, a stair lift or a lift/elevator?
A stair lift, by a wide margin: published 2026 ranges run from $2,900 to $25,000 depending on the staircase, against $25,000 - $75,000 for a home elevator. A through-floor lift sits between the two, around $25,000 - $40,000 installed from US suppliers.
Does a stair lift work for a wheelchair user?
No. A stair lift carries a person seated, so the wheelchair has to stay on one floor - or you keep one on each. Where the wheelchair itself has to travel between floors, the choice is a through-floor lift or a home elevator.
Can a lift be added to an existing house?
Yes, in three ways: an internal shaft where a stacked space already exists, an external shaft mounted to an outside wall where the internal plan is too tight, or a self-supporting through-floor lift that needs a floor opening but no hoistway. Which one is possible is decided by the floor structure and the available footprint, not by preference.
How long do these last?
Published service-life figures put a home elevator at 20-30 years with annual servicing and a stair lift at 7-10 years (10-15 with servicing). A through-floor lift sits nearer the elevator end of that range. Servicing is what decides which end of it you get.
Is a lift worth it if the household may move in a few years?
That is an honest question rather than a sales one. A stair lift can be removed and the staircase restored; a shaft is a permanent alteration that a future buyer may see as either an asset or a loss of floor area. It is worth deciding which of those you are buying before you sign.
Sources
Every figure on this page is a published figure. Where the published evidence disagrees, the page shows the spread rather than one number.
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