Getting a stairlift installed is a much simpler process than most people expect. There’s no major building work involved, the installation is usually completed within a couple of hours, and your staircase won’t be out of action for long. Here’s a step-by-step guide to what happens before, during, and after installation.
Step 1: The Home Survey
Every stairlift installation begins with a home survey. A trained surveyor visits your property to assess your staircase and discuss your needs. This visit typically lasts 30 to 60 minutes and covers:
- Staircase measurements — Width, length, number of turns, and any obstacles like radiators, doors, or cupboards
- Power supply — Stairlifts plug into a standard 13-amp socket, so the surveyor will check there’s one nearby at the top or bottom of the stairs
- User requirements — Your weight, height, mobility level, and which side of the stairs suits you best
- Rail routing — Where the rail will run and whether any modifications are needed at the top or bottom landing
For straight stairlifts, the survey is straightforward and the lift can often be installed within a few days. Curved stairlifts require more detailed measurements because the rail is custom-manufactured, which typically adds 4 to 6 weeks lead time.
Step 2: Installation Day
On installation day, here’s what you can expect:
| Stage | Time | What Happens |
|---|---|---|
| Rail fitting | 45–60 mins | The rail is secured to the stair treads (not the wall), working from bottom to top |
| Carriage and seat | 20–30 mins | The motor unit and seat assembly are mounted onto the rail |
| Electrical connection | 10–15 mins | Plugged into a standard mains socket and batteries charged |
| Testing and handover | 15–20 mins | Safety checks, demonstration, and user training |
Total installation time for a straight stairlift is typically 1.5 to 2.5 hours. Curved stairlifts may take 3 to 4 hours due to the more complex rail system. Two engineers usually attend for curved installations.
How the Rail Is Fitted
One of the most common concerns is damage to the home. The rail is fixed to the stair treads using brackets, not to the wall. This means your walls, plaster, and wallpaper remain untouched. The brackets are screwed into the wooden treads and are virtually invisible once the rail is in place.
If the stairlift is ever removed, the small screw holes in the treads can be easily filled. The staircase returns to its original condition with minimal cosmetic repair needed — usually just a bit of wood filler and a touch of paint or varnish.
Power Requirements
Stairlifts are powered by rechargeable batteries that are charged via a standard UK mains plug (13-amp, 3-pin). The charger connects at the top or bottom of the rail — wherever the lift parks when not in use. Power consumption is very low, comparable to charging a mobile phone, so the impact on your electricity bill is negligible.
The battery backup means the stairlift will continue to work during a power cut, giving you several trips up and down before needing to recharge. This is an important safety feature — you’ll never be stranded halfway up the stairs.
Do I Need Planning Permission?
No. Stairlift installation does not require planning permission or building regulations approval in the vast majority of cases. It’s classified as a minor domestic alteration. The only exception might be if you live in a listed building, where you may need listed building consent before making any structural changes — though since the rail attaches to the stairs rather than the building fabric, even this is rarely an issue.
If you rent your home, you’ll need written permission from your landlord before installation. Under the Equality Act 2010, landlords cannot unreasonably refuse a request for disability-related adaptations.
After Installation
The engineer will walk you through how to use the stairlift safely, including:
- How to operate the controls (armrest-mounted joystick or remote control)
- How to fold and unfold the seat, footrest, and armrests
- How the seatbelt works
- How to use the swivel seat for safe dismounting at the top
- What to do if the stairlift stops (usually just check it’s plugged in and the seat is fully swivelled back)
- How to use the key switch to prevent children or unauthorised use
You should receive a user manual and the engineer’s contact details for any follow-up questions. Most suppliers also offer a free follow-up check within the first few weeks. You can read independent installation reviews to see what other buyers experienced.
Frequently Asked Questions
Will the installation damage my stairs or carpet?
The rail is fixed to the stair treads with screws, which creates small holes that can be filled if the lift is later removed. Your carpet sits underneath the rail brackets. Some installers will cut a small section of carpet around the bracket; others fit on top of the carpet. Discuss this with your supplier beforehand if it concerns you.
How noisy is a stairlift?
Modern stairlifts are very quiet — most produce around 50–55 decibels, about the same volume as a normal conversation. You’ll hear a gentle hum as the motor runs, but it shouldn’t disturb anyone else in the house.
Can a stairlift be installed on either side of the stairs?
Yes. The rail can be fitted on either the left or right side of the staircase. The best side depends on your staircase layout, any obstacles, and which hand you find it easier to operate controls with. Your surveyor will recommend the best option during the home visit.