Installing an elevator is much more than bringing equipment to site and assembling it inside a shaft.

A successful elevator installation requires coordination between the building owner, architect, contractor, elevator supplier, installation technicians and electrical team. Problems with shaft dimensions, power supply, pit depth, structural openings or missing components can delay an otherwise straightforward project.

For developers, contractors and building owners in Nigeria, understanding the installation process before work begins can help prevent costly corrections and unnecessary delays.

Below is a practical overview of how a typical elevator project progresses from the initial site inspection to final commissioning and handover.

1. Site Survey and Shaft Inspection

The process should begin with a detailed inspection of the proposed elevator location.

Before equipment is ordered or installation begins, the elevator team needs to confirm that the actual site conditions correspond with the proposed elevator specification.

Important measurements and conditions normally checked include:

• Shaft width and depth
• Total travel height
• Number of floors and stops
• Floor-to-floor heights
• Pit depth
• Available overhead
• Landing door openings
• Shaft alignment
• Machine-room availability, where applicable
• Electrical power availability
• Access for bringing equipment into the building

This stage is particularly important when installing an elevator in an existing building.

A difference of even a few centimetres in critical shaft dimensions can affect the cabin size, counterweight arrangement, guide rail position or landing-door installation.

The objective is simple: confirm that the elevator being supplied can actually be installed in the available space.

2. Elevator Design and Technical Drawings

Once the site dimensions have been confirmed, the elevator configuration can be finalized.

Technical drawings are then prepared showing how the elevator will fit within the building.

These drawings typically indicate the shaft dimensions, cabin arrangement, guide rail positions, counterweight position, landing doors, pit requirements, overhead clearance and other important installation details.

At this stage, the elevator specification should also be confirmed, including:

Capacity: for example, 4, 6, 8, 10 or 12 passengers.

Number of stops: based on the floors the elevator will serve.

Speed: selected according to the building height and application.

Door configuration: including door width, opening type and landing arrangement.

Cabin finish: stainless steel, decorative finishes or customized designs.

Drive system: such as a machine-room-less (MRL) traction elevator or another suitable configuration.

These drawings should be reviewed before major shaft finishing works are completed.

3. Preparing the Elevator Shaft

Before the installation team mobilizes, the elevator shaft must be ready.

The civil contractor and building owner generally need to ensure that the shaft complies with the approved elevator drawings.

This can include completing or correcting the shaft structure, preparing landing openings, ensuring the required pit depth and overhead are available, providing appropriate access and completing necessary structural works.

The shaft should also be cleared of construction materials and unnecessary obstructions.

One common mistake is treating the elevator shaft as an isolated part of the building.

In reality, the elevator specification affects several areas of construction. Architects, structural engineers, electrical contractors and the elevator company should coordinate as early as possible.

4. Elevator Equipment Delivery to Site

Once the shaft is ready and the required equipment is available, materials can be delivered to the project.

A complete elevator consists of many components rather than one single machine.

Depending on the elevator configuration, equipment may include:

• Traction machine
• Control system
• Automatic doors
• Guide rails
• Cabin and car frame
• Counterweight system
• Steel wire ropes
• Safety gear and governor
• COP and LOP fixtures
• Traveling cables and electrical wiring
• Sensors and switches
• Buffers
• ARD or emergency rescue equipment
• Various brackets, fasteners and installation accessories

This is why material verification before installation is extremely important.

A missing component can stop an installation team even when 95% of the elevator has already arrived.

For projects relying entirely on imported materials, discovering a missing or incorrect component at this stage can create significant delays while a replacement is sourced.

Maintaining access to elevator components and spare parts locally in Nigeria can therefore make project execution considerably easier.

5. Mechanical Installation

Once the shaft and materials are ready, mechanical installation begins.

The exact sequence varies according to the elevator design and site conditions, but the work typically includes installing the main structural and moving components of the elevator.

Guide rails are installed and carefully aligned inside the shaft. These rails guide the movement of the elevator car and counterweight.

The installation team then proceeds with components such as the car frame, counterweight frame, traction machine, suspension system, cabin structure, landing doors and associated mechanical equipment.

Precision is extremely important during this stage.

Poor rail alignment or incorrect mechanical installation can contribute to vibration, noise, uneven operation and premature component wear.

The objective is not simply to make the elevator move—it is to achieve safe, stable and smooth operation.

6. Electrical Installation and Control System

After the major mechanical components are installed, attention moves to the elevator's electrical and control systems.

The control panel acts as the brain of the elevator.

It receives information from buttons, sensors, door systems and safety devices and determines how the elevator should operate.

Electrical work can include installing and connecting:

• Main elevator controller
• Drive system
• Traveling cable
• Car operating panel (COP)
• Landing operating panels (LOPs)
• Door operator
• Positioning and leveling sensors
• Limit switches
• Inspection controls
• Safety circuits
• Emergency communication
• ARD/emergency rescue system

The building must also provide the appropriate electrical supply according to the elevator specification.

Incorrect voltage, unstable supply or incomplete electrical preparation can prevent testing and commissioning even after the mechanical installation has been completed.

7. Testing and Adjustment

An elevator should never be handed over immediately after assembly.

The system must first go through testing, adjustment and calibration.

Technicians check how the elevator behaves under different operating conditions.

Particular attention is given to areas such as door operation, acceleration, deceleration, floor leveling, braking, safety circuits, sensors, emergency functions and ride quality.

Repeated test runs allow technicians to identify and correct issues before the elevator enters normal service.

For example, an elevator might technically reach every floor but still require adjustment if it stops slightly above or below the finished floor level.

The objective of testing is therefore not simply to confirm that the elevator moves.

It is to confirm that the complete system operates correctly and safely.

8. Safety Checks and Final Inspection

Before commissioning, the elevator's safety systems must be checked.

Depending on the elevator and applicable project requirements, technicians may verify components and functions such as the safety gear, overspeed governor, buffers, door interlocks, emergency stop functions, limit switches, braking system and emergency rescue operation.

Landing doors are particularly important.

The elevator should not operate normally when a landing door is improperly opened or when required safety conditions are not satisfied.

Any outstanding installation issues identified during inspection should be corrected before the elevator is released for normal passenger use.

9. Elevator Commissioning

Once installation, testing and required safety checks have been completed successfully, the elevator can proceed to commissioning.

Commissioning is essentially the transition from an installation project to an operational elevator.

Final settings are confirmed, normal operating modes are tested and the complete system is checked as an integrated unit.

At this point, the elevator should deliver the performance expected from its design—including smooth travel, accurate leveling, reliable door operation and proper response to passenger commands.

10. Handover to the Client

Commissioning does not necessarily mark the end of the supplier's responsibilities.

A proper handover should help the building owner or facility management team understand the equipment they are receiving.

Depending on the project, handover may include operating instructions, technical documentation, warranty information, maintenance recommendations and guidance regarding emergency procedures.

A maintenance schedule should also be established.

Elevators are electromechanical systems operating repeatedly throughout the day. Preventive maintenance is therefore essential for reliability, passenger safety and long equipment life.

How Long Does Elevator Installation Take in Nigeria?

There is no single installation period that applies to every elevator.

The timeline depends on factors such as building height, number of stops, elevator type, shaft readiness, availability of components, site access and coordination between contractors.

However, an important distinction should be made between installation time and total project lead time.

An installation team may be capable of completing its work relatively quickly, while the overall project takes months because equipment or replacement components are still being imported.

This is one of the reasons material planning is so important.

Before installation starts, the contractor should ideally confirm that the complete equipment package is available and that the shaft, electrical supply and site conditions are ready.

Common Causes of Elevator Installation Delays in Nigeria

Many elevator delays can be traced back to preparation rather than the actual installation work.

Typical causes include incorrect shaft dimensions, insufficient pit or overhead clearance, unfinished civil works, unavailable power supply, missing components, incorrect equipment specifications and poor coordination between the building contractor and elevator installer.

Another major problem can occur when components need to be imported after installation has already started.

Good planning attempts to identify these problems before technicians mobilize to site.

Planning an Elevator Project in Nigeria?

At J & P Global Lifts & Elevators, we supply complete elevator systems and elevator components for projects across Nigeria.

We work with developers, contractors, installers, maintenance companies and building owners to help ensure that the correct equipment is selected for each project.

Our product range includes complete elevators as well as control systems, traction machines, automatic doors, guide rails, safety equipment, cabins, fixtures and other elevator components.

Having access to equipment and spare parts locally can also reduce one of the biggest causes of elevator project delays: waiting for missing components to arrive from overseas.

Whether you are planning a residential elevator, apartment lift, commercial passenger elevator or another vertical transportation project, getting the technical requirements right from the beginning can save considerable time and expense later.

A successful elevator installation starts long before the first component enters the shaft. It starts with proper planning.