Glossary term
stairlift
A powered chair or standing platform that travels along a rail fixed to a staircase, letting one person ride between floors while seated.
What it means
A stairlift is a chair on a rail. The rail is fixed to the treads of the staircase, not to the wall, and the chair carries one person at a time up or down. It runs on batteries that are topped up whenever the chair is parked on a charging point, so it keeps working during a power cut. Straight stairs take a straight rail; a staircase with a bend needs a curved rail made to measure for that house.
Where you see it
Stairlifts are the most common form of home access equipment in the UK. They are used where a person can still transfer onto a seat but can no longer manage the stairs. Rental units are common for short-term needs after surgery, and bought units are common where the need is permanent. Most homes with a stairlift have exactly one, serving a single flight.
How it works
A small motor drives a gear or roller along the rail. The chair carries the batteries, the control switches and the safety sensors, so the only permanent connection to the house is the charger, plugged into an ordinary socket near the top or the bottom of the stairs. The chair only charges when it is parked correctly on the charging strip.
Safety is handled by interlocks. The seat must be locked either straight ahead for travel or turned to the safe dismount angle at the landing. Sensors under the footplate and along the carriage stop the chair if something is in the way. A key switch isolates the chair completely, which is useful with children in the house and confusing when the key has been put away and forgotten.
Why it matters
Most stairlift calls come down to three things: charging, obstruction and swivel position. A chair that beeps while parked is nearly always a charging problem, a chair that stops halfway is nearly always an obstruction, and a chair that will not start is very often a seat that is not locked into position or a key turned off.
Commonly confused with
A stairlift is confused with an inclined platform lift and with a home lift. A stairlift carries one seated person along a rail on the staircase; it does not carry a wheelchair, and it does not travel through the floor. It is also the only one of the three that most households can operate entirely themselves.
Wear, service and lifespan
Batteries, charge contacts, the seat swivel, the footplate sensors and the rack along the rail are the wear items. Service work tests all of these plus the seat belt, the controls and the safety cut-outs. Batteries typically need renewing every few years, sooner where the chair is often parked away from the charge points.
Signs to watch for
- The chair beeps continuously while parked at a landing.
- It stops at the same point on the stairs every time.
- It runs slowly, or manages only one or two trips from a full charge.
- It will not start although the display shows power.
- It makes a grinding or clicking noise it did not make before.
Troubleshooting stairlift
Beeping and no movement
What it usually means: Usually a flat battery from parking away from the charging strip
Safe check: Park at a charge position, leave it for a few hours and try again.
It stops part-way up the stairs
What it usually means: An obstruction sensor has triggered
Safe check: Look along the stairs for shoes, rugs, toys or pets and note the step where it stops.
It runs but the seat will not swivel and lock at the top
What it usually means: The swivel latch or its sensor
Safe check: Do not get off until the seat locks. Report it the same day.
How to report it
Say the make, whether it beeps, where on the stairs it stops, and whether the user depends on it to reach a bedroom or bathroom. Dependency raises the priority with almost every provider, so it is worth stating clearly.
Ask us about stairlift on your lift
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Related terms
Definitions that usually come up alongside stairlift when you are describing a fault.
- charging strip
Contacts on the stairlift rail that charge the batteries whenever the chair is parked correctly.
Controls and electrics
- footplate
The fold-down platform a stairlift passenger rests their feet on, carrying obstruction sensors on its underside.
Safety devices
- swivel seat
The turning stairlift seat that locks either facing the stairs for travel or facing the landing for a safe exit.
Safety devices
- lift
A powered machine that carries people or goods between fixed levels of a building, guided by rails and controlled from landings and from inside the car.
Lift types
- home lift
A small passenger lift installed in a private dwelling, usually serving two floors and built to the machinery rules rather than the commercial lift rules.
Lift types