By the StairliftAdvisor.co.uk – Independent UK Stairlift & Home Lift Guides Team · Updated June 2026 · Independent, reader-supported

Through-Floor Home Lift vs Stairlift UK – Pros, Cons & Costs

If you're looking to improve accessibility in a multi-storey home, you'll likely come across two main options: a through-floor home lift or a stairlift. Both solve the problem of getting upstairs, but they work in fundamentally different ways. Which one suits your home depends on your space, budget, and how you plan to use it long-term.

Through-Floor Lifts: How They Work

A through-floor lift (also called a home elevator or platform lift) is a small lift that goes vertically through your floor. You step into a compact cabin, close the gate, and it raises you to the next level. The lift requires a shaft—either created by cutting through existing floors or built into a corner of your home.

The main advantage is straightforward: it's a proper lift. You can take furniture up with you, move in a wheelchair without transferring, and use it regardless of mobility level. It doesn't intrude on your staircase, so you keep your stairs intact for guests or future resale.

Leading UK suppliers include Stiltz (popular mid-range option with models like the Duo and Trio), Terry Lifts (custom-built lifts designed for period properties), and Wessex Lifts (high-end domestic lifts with premium finishes).

Stairlifts: How They Work

A stairlift is a motorised seat that glides up the banister rail of your existing staircase. You sit down, press a button, and it carries you upstairs. There's no structural work needed—it fits to your existing stairs.

The trade-off is that you need to be able to transfer into and out of the seat, and you can't take luggage or furniture with you. It also monopolises your staircase during use, which matters if you have family or carers who need to use the stairs while you're moving.

For detailed comparison, see our guide to stairlifts for the elderly in the UK.

Space and Structural Requirements

Through-floor lifts need either:

• A 1.2–1.5m² footprint and a continuous vertical shaft (180–220cm height per floor)
• Or a corner installation cutting through existing floor joists (structural engineer sign-off required)
• Door openings on each floor (adds cost and disruption)

This is genuinely constraining. Many Victorian terraces or mid-century semis don't have a suitable corner to spare. Cutting through floors disrupts electrics, plumbing, and structure—expect a surveyor and structural engineer involved.

Stairlifts need:

• A straight or curved staircase with space for a rail mount
• No structural work
• Ceiling height sufficient for the seat mechanism (usually 2.1m+)

They're far less invasive. If you have a standard staircase, installation takes a day and you're done.

Installation and Disruption

Through-floor lifts involve building work: structural assessment, floor cutting, reinforcement, electrical supply upgrades, and ventilation. You're looking at 2–4 weeks minimum, possibly longer in listed buildings. Costs for installation labour alone run £5,000–£12,000.

Stairlifts are a straightforward installation—typically 1–2 days, minimal mess, no structural work. Labour costs are usually included in the quoted price.

Cost Comparison

Here's a realistic UK cost breakdown:

| Item | Through-Floor Lift | Stairlift | |------|-------------------|-----------| | Unit cost (Stiltz/Wessex/Terry) | £8,000–£25,000 | £2,500–£5,000 | | Installation labour | £5,000–£12,000 | Included | | Structural/electrical works | £3,000–£8,000 | £0 | | Total installed | £16,000–£45,000+ | £2,500–£5,000 | | Maintenance (annual) | £300–£600 | £100–£200 |

A Stiltz through-floor lift sits around £8,000–£12,000 for the unit. A curved or bespoke staircase lift runs closer to £5,000. But the installed cost gap is dramatic when you factor in building work.

Which Should You Choose?

Choose a through-floor lift if:

• You use a wheelchair or have severe mobility restrictions
• You need to move furniture or luggage between floors regularly
• You want to keep your staircase completely clear for other users
• You plan to stay in the property 10+ years (better long-term value)
• You have the space and budget for structural work

Choose a stairlift if:

• You can transfer independently (or with minimal help) into a seated lift
• Budget is tight
• Your staircase layout is straightforward
• You want no building work or disruption
• You may move house within the next 5–10 years

For wheelchair users or those who cannot transfer, a stairlift isn't an option—a through-floor lift is necessary. For someone with mild mobility issues who can sit and stand safely, a stairlift is usually a quicker, cheaper solution.

Maintenance and Longevity

Both require regular servicing. Through-floor lifts have more moving parts and need annual checks (usually £300–£600). Stairlifts are simpler and often cheaper to maintain (£100–£200 annually), but moving parts like the motor and rail will wear over 10–15 years.

Planning Permission and Building Regs

Through-floor lifts usually need building regulation approval due to structural work. Stairlifts rarely do—they're minor alterations. This adds another 4–8 weeks if you need building control sign-off.

Final Thought

The right choice depends on your mobility level, home layout, and how long you're staying put. If you have the space and budget, a through-floor lift is the more future-proof option. If you're on a tight timeline or budget and can transfer independently, a stairlift solves the problem quickly for a fraction of the cost.

For more on curved options, see our guide to platform lifts in the UK.