Can a Stairlift Be Fitted to Any Stairs?

Can a stairlift be fitted to any stairs?

Not every staircase suits a stairlift, but a surprising number do. The lift runs on a rail fixed to the stairs, so what matters is the width, the shape and how the stairs start and finish. The first step in our guide to stairlifts and what they can do is to know which of your stairs are straight, which turn and which are tight.

Which? says a surveyor visits to carry out a feasibility study, which “should be free of charge”. They check that the stairs are wide enough and that there is room for your knees. This page sets out what they look for so you know what to expect.

Get free quotes from a trusted local installer

Free · No obligation · One trusted local installer

Prefer to talk? Call free 0800 000 0000 Mon–Fri 8am–8pm, Sat 9am–5pm

We're free to use. Installers pay us a fee when we introduce you. How we make money

Can a straight stairlift be fitted to my stairs?

A straight stairlift suits a staircase that runs from bottom to top in one line with no turns. It is the cheapest type, but Which? notes that it may not suit very narrow stairs.

Which? puts the typical cost of a standard straight stairlift at £2,000 to £4,000. Their figures are for a fitted lift. Extra work, such as a new power point or some carpentry, costs more. Our stairlift cost guide explains what affects the price.

Other people can usually still use the stairs when the lift is folded away, according to Living Made Easy. There is more detail on the straight type on our page about straight stairlift prices and models.

What if my stairs have a bend, a turn or a landing?

A staircase with a turn can still have a stairlift, but it needs a curved rail made to measure for your stairs. Which? puts a new curved lift at £4,500 to £8,000 or more, and adds a rule of thumb: “every corner in your staircase will double the initial price”.

Made-to-measure lifts take longer. One dealer’s May 2026 list gives “approx. 7 to 10 days” for a straight lift and “approx. 2 to 3 weeks” for a curved one, counted from order to fitting.

Living Made Easy says two straight stairlifts can cost less than one curved lift. That only works if you can safely move from one chair to the other on the landing. It also advises that a lift should cover the whole staircase, because folding platforms that bridge a half landing can cause problems.

Because a curved rail is made for one staircase, it generally cannot be reused on another. Read our guide to curved stairlifts for costs and lead times.

How narrow can the stairs be?

Most people need a staircase at least about 740 mm (29 inches) wide for a seated stairlift, says Living Made Easy. Narrower stairs are not always ruled out, because the folded width of the chair matters as well.

Published figures show how much the chair and rail take up. One manufacturer’s specifications give a folded width of 310 mm for a straight model and a minimum width of 670 mm to swivel at the top. A dealer’s page for a different make gives a minimum folded width of 344 mm. Ask each installer for the figures for the model they propose.

For very narrow stairs, Living Made Easy says that standing or perching lifts may suit, and also someone with a stiff leg. They need full or partial weight-bearing, and Which? warns that they “could be dangerous” for someone with dizzy spells or without the strength to stand. Our page on stairlifts for narrow stairs covers the options.

Does fitting a stairlift need building work?

Usually not. According to Living Made Easy, a stairlift is normally fitted within a day, can be removed later and normally needs no building work.

Some things can add work or cost:

A power supply. Which? says extra work such as a new power point costs more.
A door at the foot of the stairs. A motorised hinged rail can fold up to clear it, and the surveyor will identify this as a modification.
Weak walls. According to Checkatrade’s cost guide, the installer must check that the walls can bear the load, or need repair first. Ask your own surveyor whether this applies.
Stair carpet. Which? suggests replacing worn carpet before installation, so the lift does not have to be removed later.

Tell the surveyor about the person who will use the lift, including any wheelchair use or difficulty with the controls. Seated lifts suit people with reasonable strength, stability and grip to get on and off, according to Living Made Easy.

Which stair types suit which lift?

Stair types and the lifts that usually suit them
Stair type	Lift that may suit	Published cost	Check
Straight, wide enough	Straight seated stairlift	£2,000 to £4,000 fitted (Which?)	Width, knee room, weight limit
One or more bends or turns	Curved seated stairlift, or two straight lifts	£4,500 to £8,000 or more (Which?)	Landing space for a safe move between two lifts
Very narrow	Standing or perching stairlift, or a narrow-fold seated lift	One dealer lists a curved perch lift from £7,495	Strength to stand, dizziness, headroom
Wide, for a wheelchair user	Platform stairlift	Estimate: £8,000 to £15,000 (MyJobQuote)	Many domestic stairs are too narrow
Stairs outside	Outdoor stairlift	About £4,000 on average (Checkatrade, 2024)	Weather cover and a safe power supply
Stairs that suit no lift	Through-floor lift or another option	Around £15,000 to £30,000 (MyJobQuote)	Space and building work on both floors

What if a stairlift will not fit my stairs?

If a surveyor says no stairlift will fit, other options exist. Which? describes a through-floor lift, which travels through a hole in the ceiling with its track fixed to a wall, as suiting homes where a stairlift will not fit, such as a spiral staircase. It also says it is the most expensive type to install.

Living Made Easy says platform lifts avoid moving out of a wheelchair, but take up a lot of stair space and many domestic stairs are too narrow for them. Our guide to other ways to manage the stairs and the stairlift versus home lift guide compare the choices. The council’s occupational therapist can also advise, and our grants guide explains help with paying.

To find out what fits your stairs, you can arrange a free home survey. One local installer contacts you, not five. Quotes are free and no obligation, and you should never sign on the day of a visit. Stay In Your Home is an independent UK guide to stairlifts, home lifts and home adaptations. Prices here are published estimates, not quotes.