Key Takeaways
- A curved stairlift takes 1-4 weeks from survey to final installation.
- The rail is custom-built for each staircase, which is the main factor affecting the timeline.
- Installation itself usually takes 3–5 hours, even for complex curved systems.
- Engineering stages include surveying, CAD design, fabrication, rail bending, testing, and pre-assembly checks.
- Faster timelines are possible if the manufacturer offers priority build slots or has pre-assembled carriage stock available.
Curved Stairlift Installation Timeline
Below is the full process from the first survey to the final fitting, showing what happens behind the scenes and how long each stage typically takes.
1. Initial Assessment & Quotation
Time: Same day, 48 hours
A mobility consultant visits your home to assess:
- Staircase type (single curve, multiple curves, landings)
- Width, steepness, and turning angles
- Space for parking points and charging
- User needs and seat configuration
You’ll receive a quote either on the day or within 24–48 hours for more complex designs.
2. Detailed Technical Survey (Measurement Appointment)
Time: 30–90 minutes
Timeline position: Day 1–5
A trained surveyor performs advanced digital measurements using:
- 3D scanners
- Digital inclinometers
- Laser distance tools
- CAD-compatible modelling software
They capture:
- Precise curve angles
- Rise heights
- Landing dimensions
- Rail clearance zones
- Wall obstructions
- Radiators, posts, windows, bannisters
The survey’s accuracy ensures the curved rail fits precisely.
3. CAD Design & Rail Path Modelling
Time: 1–5 days
Engineers use the survey data to build a 3D CAD model of:
- The staircase
- The rail path
- The exact rise and fall of each section
- Every bend, radius, and transition
- Bracket positioning
- Ride dynamics and safety clearances
The CAD model must be approved before fabrication begins.
4. Custom Rail Fabrication
Time: 5–14 days
Timeline position: Week 1–3
This is the most time-consuming stage.
The factory engineers:
- Cut metal tubing to measurement
- Perform precision bending
- Weld multi-part curved sections
- Grind and smooth transitions
- Fit internal rack or chain drive components
- Add bracket anchor points
- Apply protective powder coating
More curves = more fabrication time.
A complex staircase may require multiple rail sections to be welded and shaped by hand or by robotic welders.
5. Quality Control & Test Assembly
Time: 1–3 days
Before the rail leaves the factory, engineers run multiple checks:
- Confirm curvature accuracy
- Test carriage movement on the rail
- Check safety sensors
- Verify charging system alignment
- Ensure a smooth ride through each bend
- Inspect finish and coating quality
Premium manufacturers conduct a full test run on a mock assembly rig.
6. Delivery Scheduling
Time: 1–5 days
Depends on:
- Delivery slots
- Installer availability
- Customer availability
- Location in the UK
Many companies aim to schedule installation within 48–72 hours of the rail being ready.
7. Installation in the Home
Time: 3–5 hours
Despite the complex engineering behind the scenes, fitting a curved stairlift is usually quick.
Installation includes:
- Fitting brackets to the stairs or the wall
- Securing the curved rail
- Mounting and configuring the carriage
- Connecting and testing the charging points
- Adjusting speed, pressure sensors, and seat positioning
- Full ride and safety testing
Most installations require no structural changes to the home.
8. Final Testing, Handover & Training
Time: 15–30 minutes
The installer provides:
- Full safety demonstration
- Remote operation tutorial
- Battery charging guidance
- Cleaning & maintenance instructions
- Emergency/manual override information
You’ll also receive the warranty, servicing schedule, and certification paperwork.
Typical Total Timeline
| Stage | Time Required |
| Initial quote | Same day–48 hrs |
| Technical survey | Within 1–5 days |
| CAD modelling | 1–5 days |
| Rail fabrication | 5–14 days |
| Quality testing | 1–3 days |
| Delivery window | 1–5 days |
| Installation | 3–5 hours |
Total time: 1–4 weeks
Fast-track builds may complete in 7–10 days, while highly complex rails may take up to 4 weeks.
Factors That Affect the Timeline
1. Complexity of the staircase
More bends, landings, and height differences add time.
2. Manufacturer workload
Larger companies with bigger factories tend to produce rails faster.
3. Customisation level
Extras like powered seats or hinged rails may add days to the build.
4. Reconditioned options
If a refurbished curved carriage is available, it can reduce build time (the rail still must be custom-built).
5. Fast-track service
Some suppliers offer express manufacturing for an additional fee.
Can a Curved Stairlift Be Installed Faster?
Yes, when the manufacturer already has:
- Pre-built carriage stock
- Engineers available for immediate measurement
- Priority production slots
In urgent situations (e.g., hospital discharge), many companies can complete installation in under 10 days.
Bottom Line
Installing a curved stairlift is a multi-stage process that involves advanced measurements, precision engineering, custom rail fabrication, and professional fitting. While straight stairlifts can often be installed within a day or two, curved models require 1-4 weeks due to their bespoke design.
Once the rail is installed, installation is quick, safe, and minimally disruptive, providing users with a reliable mobility solution tailored to their home.