Key Takeaways
- The initial survey is essential for confirming that a stairlift is safe, suitable, and correctly matched to your staircase.
- Installers assess staircase measurements, shape, condition, power access, obstructions, safety considerations, and your mobility needs.
- The survey ensures the correct stairlift model is chosen: straight, curved, slimline, perch, or outdoor.
- For curved staircases, the survey also includes precise digital measurements for custom rail manufacturing.
Short Answer: What do installers look for?
Installers examine the size, shape, and condition of your staircase, check for obstructions, assess landing space, confirm access to power sockets, and identify any special requirements. They use this information to choose the correct stairlift and ensure it can be installed safely.
What Installers Look For During the Initial Survey
A stairlift survey is not a sales visit; it’s a technical assessment designed to ensure the stairlift fits safely and comfortably. Most surveys take 20–45 minutes, depending on staircase complexity.
Here’s exactly what the installer checks.
1. Shape and Type of Staircase
The staircase type determines the required rail design.
Installers assess whether the staircase is:
- Straight
- Curved
- Spiral
- Narrow or steep
- Multi-flight (with landings in between)
- Open-plan or with glass balustrades
- Outdoor
This determines whether you need a straight rail, a custom curved rail, or a specialist model.
2. Staircase Measurements
Accurate measurements ensure the stairlift fits safely.
Installers measure:
- Staircase length
- Width of the stairs
- Tread depth and riser height
- Angle/pitch of the staircase
- Landing sizes (top and bottom)
- Distance to nearby walls
- Any tight spots or pinch points
For curved staircases, installers often use digital 3D measurement tools to produce millimetre-accurate rail.
3. Condition and Strength of the Stairs
Engineers must ensure the stairs can safely support the rail brackets.
They look for:
- Loose or damaged steps
- Weak wood
- Uneven or slanted treads
- Rotting sections (common in older homes)
- Loose carpeting or creaking boards
If issues are found, they will recommend minor repairs or adjusted bracket placement.
4. Obstructions Along the Staircase
Any object that could block the rail or chair must be evaluated.
Installers check for:
- Radiators
- Door frames
- Handrails
- Low windowsills
- Bannisters
- Pipes
- Furniture near landings
- Light fixtures
- Newel posts
When obstacles are present, solutions include:
- Hinged (folding) rails
- Moving the rail to the opposite side
- Custom bracket positioning
- Using a slimline or perch-style stairlift
5. Landing Space at the Top and Bottom
Safe seating and dismounting are essential.
Installers assess whether there is enough room for:
- Swivel seat rotation
- Safe mounting/dismounting
- Parking the stairlift without blocking doorways
- Turning or manoeuvring mobility aids
If space is tight, they may recommend:
- A curved parking rail
- A shorter rail section
- A slimline chair
- A perch (standing) stairlift
6. Power Source Location
All stairlifts require a nearby power outlet.
The installer checks:
- Whether a socket is close enough
- If the socket is safe and not overloaded
- The best location for charging points
- Whether cabling can be discreetly routed
If no socket is available, they will discuss simple solutions that often do not require an electrician.
7. Safety Requirements and Regulations
The survey ensures the installation complies with all applicable safety regulations.
Engineers check for:
- Fire escape access
- Head clearance
- Safe turning circles
- Suitable chair height
- Proper handrail spacing
- Trip hazards in the hallway
A stairlift must not block essential exits or create new hazards.
8. Your Mobility Needs and Comfort
The survey isn’t only about the staircase, it’s also about you.
Installers assess:
- Your height and weight
- How easily can you sit/stand
- Whether you have joint, hip, or knee issues
- Whether a swivel seat is needed
- If a perch lift is more suitable
- How quickly do you need the lift installed
They may ask you to test a demonstration chair to determine the ideal setup.
9. The Best Side of the Staircase for Installation
Most staircases can accommodate the rail on either side, but one side is usually safer or more convenient.
Installers consider:
- Obstructions
- Landing clarity
- Door positions
- Handrail placement
- Power socket availability
They’ll recommend the safest and most practical side.
10. Special Requirements for Outdoor Staircases
For outdoor lifts, installers check:
- Weather exposure
- Drainage
- Surface stability
- Rail protection from rain
- Nearby power socket with waterproof housing
Outdoor models must withstand moisture and temperature changes.
11. Potential Problems and Solutions
If the survey uncovers issues, engineers explain simple solutions such as:
- Hinged rails for door obstructions
- Reinforcing weak steps
- Removing or relocating small items
- Using alternative rail positioning
- Recommending a slim or perch chair
- Scheduling minor pre-installation work
Almost all problems have an easy fix, and no structural changes are normally required.
Conclusion
During the initial survey, installers examine your staircase, home layout, and personal mobility needs to ensure a safe, custom-fit stairlift installation. They check measurements, obstacles, power sources, landing space, and overall safety. The survey is fast, non-invasive, and essential for choosing the right stairlift for your home.
This detailed check ensures your stairlift is comfortable, safe, efficient, and perfectly matched to your stairs, providing peace of mind before installation day.