Modernising Ageing Elevators: When to Upgrade, What to Replace and Why It Pays

Full replacement is rarely the only option. A well-planned modernisation programme can restore safety, slash energy bills and transform the passenger experience — at a fraction of the cost.

Most elevators installed in Kenya between 1990 and 2010 are now at or approaching the end of their designed component life. The relay-based control systems, DC motors and manual-contact door operators common in that era are obsolete. Spare parts are scarce, energy consumption is high and the ride quality is poor by modern standards.

The instinctive response is to replace the entire system. But complete replacement requires demolishing the existing shaft structure, sourcing new guide rails, installing a new machine, rewiring from scratch and taking the elevator out of service for four to eight months. For a busy residential or commercial building, that is rarely acceptable — and rarely necessary.

What Modernisation Actually Means

Modernisation is not a single intervention — it is a spectrum. At the minimal end, it might mean replacing the control board and adding a new operator panel. At the comprehensive end, it means replacing everything except the shaft structure and guide rails. Most projects fall somewhere in between, with the scope determined by the age and condition of each major subsystem.

The Control System: Where Safety and Reliability Begin

The control system is the brain of the elevator. Relay-based controllers from the 1980s and 1990s have contact sets that wear, corrode in humid environments and become unreliable. More critically, they lack the self-diagnostic and fault-logging capabilities of modern systems — meaning problems are detected only when the elevator fails, not before.

A modern microprocessor controller monitors dozens of parameters in real time. It logs every fault, every door reopening event, every safety circuit activation. This data is invaluable for predictive maintenance — identifying components that are degrading before they cause a breakdown. It also integrates with modern destination control systems, smart building platforms and remote monitoring tools.

Door Systems: The Most Common Source of Breakdowns

The door system accounts for more elevator breakdowns than any other single component — studies consistently put doors at 70–80% of all service calls. Older mechanical-contact door operators rely on physical contacts that wear and corrode. When they fail, the elevator stops — because no elevator should ever move with a door that is not confirmed closed and locked.

Modern door operators use brushless motors, encoder feedback and soft-start/stop profiles that are gentler on the door panels and the building's structure. Crucially, modern light-curtain systems replace the old rubber safety edge. A light curtain uses multiple infrared beams to detect obstructions across the full height of the door — not just at elbow or suitcase height. This is a significant passenger safety improvement, particularly relevant for wheelchair users and young children.

Cabin Refurbishment: Tenant Perception and Property Value

A building's elevator is one of the first things a prospective tenant or buyer experiences. A worn, dimly lit cabin with faded stainless steel and sticky floor covering communicates a building that is not well maintained — regardless of how good the rest of the building looks. Cabin refurbishment is the most visible part of modernisation and often the element that drives the strongest return in terms of tenant satisfaction and property value.

How to Decide What Your Building Needs

The scope of any modernisation programme should be driven by a professional condition assessment — not by what is cheapest or quickest. Our engineers assess each subsystem independently, rating its condition and remaining useful life, before recommending a prioritised programme of works.