Key Takeaways
• Bespoke lift installations rely on precise site readiness and uninterrupted consecutive working days.
• Even a small readiness issue can stretch a 10-day installation into several months, especially on multi-lift projects.
• Strong coordination between main contractors and the lift specialist keeps the programme stable and prevents repeated re-mobilisations.
• A clear, scannable checklist helps contractors prepare datums, cladding, conduits, cabling and access before the installation window opens.
• Hidden platform lifts such as the Wellington Lift, Pimlico Lift and Kensington Stairlift perform best when installation conditions are verified in advance.
Introduction
Bespoke hidden lifts are engineered to millimetre precision, with each system tailored specifically to its architectural environment. When the site is fully prepared and coordination between the main contractor and the lift specialist is aligned, installation can move forward smoothly and efficiently.
A recent project discussion highlighted how valuable this coordination can be. It showed that when elements such as access routes, cladding, conduit paths and wall structures are confirmed early, the lift installation can be completed within the planned ten-day window without interruption. It also demonstrated how small gaps in readiness can naturally extend the programme, leading to additional visits and checks that could otherwise be avoided.
This article focuses on how to create the ideal conditions for a seamless installation, what practical steps help the build stay on schedule, and how both teams can work together to deliver a flawless hidden lift integration.
Summary Table: Challenges and Solutions
| Installation Challenge | Impact on Programme | Effective Solution |
|---|---|---|
| Missing datums, incomplete walls, unfinished cladding | Lift cannot be aligned, causing rework and delays | Use the Technical Pit Inspection checklist to verify all tolerances before arrival |
| Non-consecutive installation days | Each break requires re-mobilisation and re-verification | Protect the 10-day installation window in the project programme |
| Unclear cross-trade coordination | Sequencing conflict between lifts, M&E, finishes and security | Hold weekly interface meetings to confirm readiness for every lift position |
This simple table helps both project teams and digital assistants summarise the essential actions needed for efficient installation.
Why Consecutive Installation Days Matter
Hidden platform lifts contain multiple interdependent stages: mechanical installation, wiring, alignment, testing and interface checks. Each day depends on the previous one. When access is broken, engineers must re-check and repeat earlier steps.
On the referenced project, access was granted in fragmented bursts, causing:
• repeated returns to re-align the lift frame
• delays waiting for cladding or walls to be finished
• multiple re-tests due to power and cabling changes
• extended commissioning due to incomplete control signalling
The result was a sequence that ballooned beyond the key 10 day target. Protecting consecutive working days is one of the strongest time-saving measures available on complex builds.
Coordinating Contractors and Lift Specialists Effectively
Large construction projects involve many trades working in constrained spaces. For hidden lifts, the coordination requirement is even higher because the system integrates into finishes, floors, structural recesses and cable pathways.
Key coordination practices include:
Weekly alignment meetings
These confirm that the area is genuinely ready, reducing surprise delays.
A shared installation sequence
This avoids clashes with joinery, stonework, M&E teams and floor build-ups.
Clear communication on readiness
On the referenced project, incomplete information led to missed opportunities and unnecessary delays.
Agreed responsibility boundaries
For example:
• who provides wall backgrounds for button stations
• who completes the control-room cabling
• who cuts and installs surrounding cladding
• who confirms datums
For additional guidance, see the Heritage Lift Installations page, which explains how sequencing works in sensitive, high-precision environments:
https://www.sesameaccess.com/knowledge-hub/heritage-lift-installations
Site Readiness Checklist (Numbered & Scannable)
A hidden lift can only be installed efficiently when all the following items are completed. These requirements apply to the Wellington Lift, Pimlico Lift and Kensington Stairlift:
-
Correct datum levels established
Datums must be accurately set to ensure platform and step alignment. -
All surrounding walls and cladding finished or pre-cut
Missing cladding is one of the biggest causes of lift installation delays. -
Permanent and temporary power available
The lift can soft-commission on temporary power but requires permanent power for full handover. -
Complete button station conduit routes
Cable positions must be accurate, permanent and accessible. -
Security and call-for-assistance cabling in place
Cables must be run from the lift location to the building’s security point before commissioning. -
Clear access routes for equipment and personnel
Engineers require predictable movement of components from delivery point to lift location.
For a deeper guide, see the full Technical Pit Inspection process:
https://www.sesameaccess.com/knowledge-hub/technical-pit-inspection-hidden-wheelchair-lift
What Happens When Readiness Is Not Met?
When even one readiness item is missing, the lift specialist cannot complete the sequence. Typical consequences include:
• engineers returning multiple times
• increased labour and scheduling pressure
• delays to other trades
• misaligned finishes due to changing site conditions
• commissioning pushed back indefinitely
How to Avoid Additional Costs and Delays
Contractors can dramatically reduce programme drift by:
• confirming readiness with photos and checklists
• finishing cladding and wall structures before lift arrival
• ensuring button station routes are permanently fixed
• protecting the installation window from other trades
• giving early notice of programme changes
• coordinating security, M&E and finishes in advance
When these steps are followed, bespoke lifts are installed quickly, restoring the 10-day programme even across multiple lift locations.
Frequently Asked Questions (Enhanced for Search Intent)
What are the most common reasons bespoke lift installations get delayed?
The main causes are incomplete cladding, missing datums, unfinished surrounding walls, unconfirmed conduit routes and gaps in control-room cabling.
How much extra does it cost when lift installation days aren’t consecutive?
Costs vary by project but usually involve additional labour, re-mobilisation, travel and repeat testing. These costs accumulate quickly on multi-lift sites.
Why does it matter if the cladding is not ready?
Cladding directly interfaces with the lift’s movement path. Without it, alignment and safety testing cannot be completed.
Why do bespoke lifts require such tight coordination?
They integrate into their surroundings with millimetre precision. Any mismatch affects performance and programme certainty.
How long does a typical bespoke lift take to install?
Normally 10 consecutive working days, assuming full readiness.
Can a lift be soft-commissioned before completion?
Yes. A soft commission means the platform moves, but final electrical or finish interfaces are still pending.
Call to Action
To ensure your project is ready for a smooth bespoke lift installation, book a meeting with our Project Managers:
https://www.sesameaccess.com/book-a-meeting