How Much Does a Stairlift Cost to Run?

Figures on this page are worked out from manufacturer-published battery specifications and the Ofgem price cap rate in force from 1 October 2026, and the arithmetic is shown so you can check it against your own tariff. Last updated 19 September 2026.

Key takeaways

• A full battery charge costs about 5p at the October 2026 cap rate.
• A single trip up or down the stairs costs under a third of a penny.
• Ten trips a day for a year works out at roughly £11 of electricity.
• Running the lift is cheap. Servicing it at £80 to £180 a year is what actually costs money.
• Every extra watt the charger draws while the lift sits parked adds £2.31 a year to your bill.

What a full charge costs

A stairlift does not draw power from the wall while you are riding it. It runs off two 12-volt sealed lead-acid batteries wired in series to make 24 volts, and those batteries top up from a normal socket whenever the chair is parked on a charging point. So the honest way to price the electricity is to work out what it costs to fill the batteries.

Stannah publishes the numbers needed to do that. Its stairlift battery resource states two 12V 7Ah batteries powering a 24V DC motor, giving 15 to 20 trips per charge. Its 600 Siena specification sheet lists 2 x 12V 7.6Ah batteries and 42 complete return journeys on a two-metre rail.

Divide that charge across the trips it covers and you get the cost per journey. On Stannah’s conservative figure of 15 trips per charge, a single trip costs 0.29p. At 20 trips it drops to 0.22p. On the 600 Siena’s 42 return journeys from a slightly larger pack, a full return trip costs 0.11p.

A penny buys you between three and nine trips up the stairs.

What a year of using it costs

Ten trips a day is a reasonable picture of a stairlift in daily use by one person: down in the morning, up to bed, and a handful of trips in between. That household spends about £11 a year on stairlift electricity, which is roughly what a single annual service costs per month.

No obligation, takes about 30 seconds, UK-based suppliers only.

The parked watt: the number nobody publishes

Everything above prices the journeys. But a stairlift charger is not switched on only when you ride. The Acorn 130 user manual instructs owners that “the mains electricity supply/transformer should be left permanently connected and switched on”. Stannah and the other makers say the same, because the batteries need to stay topped up and the safety cut-outs need power.

That transformer therefore draws something 24 hours a day, 365 days a year, whether anyone uses the stairs or not. We call this the parked watt: what the lift costs while nobody is riding it.

No UK stairlift manufacturer we checked publishes a standby figure. Acorn’s manual gives no wattage at all. Stannah publishes battery capacity and trips per charge but not idle draw. We are not going to invent a number, so here is the conversion instead. It is simple arithmetic and it holds whatever your charger turns out to draw:

The practical consequence: for a typical household, the charger idling is likely to cost as much as or more than all the journeys put together. A lift used ten times a day burns about £11 of electricity riding, and a charger drawing 5 watts costs £11.53 doing nothing. That is why annual estimates for stairlifts cluster around £5 to £15 and not around the pennies the journeys actually cost.

How to settle it in your own house

A plug-in energy monitor costs about £10 to £15. Put it between the stairlift transformer and the socket, leave it a week without changing how you use the lift, and read the kWh total. Multiply by your own unit rate and you have your real annual figure, measured instead of estimated. If you do this, we would like to see the number: email contact@stairliftguru.co.uk and we will add measured readings to this page with credit.

Do not switch the lift off at the wall to save the standby cost. The batteries will flatten, you will lose the lift in a power cut, and a deeply discharged lead-acid battery often will not recover, which turns a £2 saving into a £60 to £120 replacement.

What the 1 October 2026 price cap change means

Ofgem announced on 26 August 2026 that the price cap for 1 October to 31 December 2026 sets electricity at 26.32p per kWh with a 54.83p daily standing charge for direct debit customers, averaged across England, Scotland and Wales. The previous quarter was 26.11p, so the unit rate moved by about a fifth of a penny.

Alongside that, VAT on domestic electricity in Great Britain drops from 5 percent to zero from 1 October 2026 to 31 March 2027. Northern Ireland is excluded and stays at 5 percent, and the Ofgem cap does not cover Northern Ireland either, so readers there should use their own tariff rate in the sums above.

For a stairlift, none of this moves the needle much. A fifth of a penny on the unit rate changes a £11 annual bill by about 9p. The cap matters here mostly because it gives everyone a single dated number to calculate from.

Why the figures you read elsewhere disagree

On 19 September 2026 we read the five UK pages then ranking for stairlift running costs and checked each for four things: a stated unit rate, a date for that rate, a power figure, and an annual cost. The results explain why the advice online is so inconsistent.

Three of the five express stairlift power as “watts per hour”. That is not a unit of energy. A watt already measures energy per unit of time, so “watts per hour” describes how quickly power is changing, which is not what anyone means here. The figure being passed around is 24 watts, which is the power the motor draws while it moves. Multiply 24 watts by a journey of roughly 40 seconds and you get 0.27 watt-hours, or 0.00027 kWh.

Several sites, including this one until today, published that as “0.024 kWh per journey”. Reading 24 watts as 24 watt-hours overstates the energy in a single journey by about 90 times. The same number appears on multiple UK sites, which suggests it has been copied from one page to the next without anyone checking the units.

How a stairlift compares with other things in the house

Comparisons between a stairlift and a washing machine are usually made wrongly, by putting a power figure next to a power figure. What matters is energy over time, so the fair comparison is annual cost.

A stairlift in daily use costs about a quarter of what the washing machine costs and a twentieth of what an electric shower costs.

The ongoing costs that actually add up

Electricity is the smallest line in the cost of owning a stairlift. Over a typical seven years of ownership the real spending goes on servicing and batteries.

On midpoint figures, electricity accounts for about 6 percent of what you spend keeping a stairlift running, against 78 percent for servicing. If you are weighing up affordability, the servicing contract is the number to negotiate. Our running-cost calculator totals all three over the years you expect to keep the lift.

Keeping the cost down

• Park the chair on a charging point every time, so the batteries stay topped up instead of cycling deeply.
• Leave the transformer switched on at the wall, as the manufacturer instructs.
• Keep the charging contacts on the rail clean, because dust on the strip stops the charge and flattens the batteries.
• Book the annual service, which protects the warranty and catches a failing battery before it strands you.
• Measure the standby draw once with a plug-in monitor, so you know your real number instead of an estimate.

Frequently asked questions

How much does a stairlift cost to run per year?

About £5 to £15 a year for most UK households. Riding the lift ten times a day costs roughly £11 of electricity a year at the Ofgem cap rate of 26.32p per kWh that applies from 1 October to 31 December 2026. Households that use the stairs less will be nearer £5.

How much does one stairlift journey cost?

Under a third of a penny. A full charge of a 24V 7Ah battery pack holds 0.168 kWh and costs about 5p at the October 2026 cap rate. Stannah rates that charge at 15 to 20 trips, which puts a single trip at 0.22p to 0.29p. A penny covers three to nine trips.

Do stairlifts use a lot of electricity?

No. A stairlift in daily use consumes around 41 kWh a year, which is less than a quarter of what a washing machine uses and about a sixth of a fridge freezer. The motor only draws power while the chair is moving, and a journey takes under a minute.

Should I switch the stairlift off at the wall to save electricity?

No. Manufacturers instruct owners to leave the transformer permanently connected and switched on. Switching it off lets the sealed lead-acid batteries discharge, which loses you the lift in a power cut and can damage the batteries permanently. Replacing them costs £60 to £120, far more than the standby electricity saved.

Are curved stairlifts more expensive to run than straight ones?

Slightly, because the rail is longer so the motor runs for longer on each journey. The difference is measured in pennies a year. A curved lift on a rail twice the length of a straight one still costs well under £25 a year to ride at the October 2026 cap rate.

Does a stairlift work in a power cut?

Yes, for a limited number of trips. Because the chair runs from its batteries and not from the mains directly, a charged stairlift will keep working through a power cut, typically for the 15 to 20 trips a full charge provides. This is one reason manufacturers want the charger left on.

What is a stairlift’s standby power consumption?

No UK manufacturer publishes this figure. It matters because the charger stays on 24 hours a day, so every watt of standby draw costs £2.31 a year at the October 2026 cap rate. A plug-in energy monitor placed between the transformer and the socket will measure it in your own home for about £10.

Sources and method

• Electricity unit rate of 26.32p per kWh and 54.83p daily standing charge, direct debit, England, Scotland and Wales: Ofgem price cap unit rates and standing charges, cap period 1 October to 31 December 2026, announced 26 August 2026.
• Temporary zero rate of VAT on domestic electricity in Great Britain, 1 October 2026 to 31 March 2027: HM Revenue and Customs policy paper.
• Battery specification of two 12V 7Ah batteries, 24V DC motor, 15 to 20 trips per charge: Stannah stairlift batteries resource.
• Battery specification of 2 x 12V 7.6Ah, 0.27kW motor and 42 return journeys on a two-metre rail: Stannah 600 Siena technical information sheet.
• Instruction to leave the mains transformer permanently connected and switched on: Acorn Superglide 130 user manual.
• Competitor comparison table: the five pages named were read on 19 September 2026 and checked for a stated unit rate, a date for that rate, a power figure and an annual cost.

Method for the cost figures: battery energy is voltage multiplied by amp-hours, so 24V x 7Ah = 168Wh = 0.168 kWh. Multiplied by 26.32p per kWh that is 4.42p, raised to about 5.2p at 85 percent lead-acid charging efficiency. Per-trip cost divides that by the manufacturer’s stated trips per charge. Annual cost multiplies per-trip cost by trips per day and by 365. Standby cost is watts x 24 x 365 divided by 1,000, multiplied by the unit rate.

Reusing these figures

Last reviewed 19 September 2026. Next scheduled review: January 2027, when the Ofgem cap for 1 January to 31 March 2027 takes effect. Editor: Jacob Whitmore.