How to Choose an Elevator

Introduction

Choosing the right elevator for your building is one of the most significant investment decisions you will make as a property owner, builder, or developer. A poorly selected elevator leads to years of operational inefficiency, frequent breakdowns, high maintenance costs, and passenger dissatisfaction. On the other hand, the right elevator — matched to your building's traffic patterns, structural constraints, and usage profile — delivers reliable service for 20+ years with minimal downtime.

In Chennai, where building regulations under the Tamil Nadu Lift Act and CMDA guidelines impose specific requirements, the decision becomes even more nuanced. Coastal climate conditions, power supply variations, and local installation practices all factor into the selection process. This guide walks you through every decision point with clarity and technical depth.

Why This Guide Matters

In our 12+ years of elevator design, installation, and service across Tamil Nadu, we have seen too many building owners make the same mistakes: choosing an undersized elevator to save costs upfront, ignoring machine room requirements during structural planning, or selecting a hydraulic system when an MRL would have been more efficient. Each of these mistakes costs significantly more to fix later than it would have to get right the first time.

This guide is written for:

• Homeowners & Villa Owners — Adding a home elevator for convenience, aging-in-place, or property value.
• Builders & Developers — Specifying elevators for apartment complexes, commercial projects, and mixed-use developments.
• Architects & Consultants — Integrating elevator systems into building designs with accurate shaft dimensions and load calculations.
• Facility Managers — Replacing or modernizing existing elevators with up-to-date technology.

Step 1: Understand the Six Elevator Types

Every elevator installation begins with one fundamental question: which type of elevator technology suits your building? The choice depends on travel height, available space, load requirements, speed expectations, and budget. Here is a detailed breakdown of each type.

1. Home Elevator (Residential)

Purpose-built for private residences, home elevators are compact, operate on single-phase power (230V), and prioritize smooth, quiet operation. They typically carry 2–5 persons (250–500 kg) at speeds of 0.5–1 m/s. Most modern home elevators are MRL (Machine Room Less), requiring no separate machinery room. Cabins range from 0.8 m² to 1.2 m², fitting within standard villa layouts. The 2025–26 trend in Chennai sees a 40% increase in home elevator installations driven by aging populations and rising property values.

2. Passenger Elevator

The standard choice for apartment buildings, offices, hotels, and commercial complexes. Passenger elevators are available in capacities from 630 kg (8 persons) to 1600 kg (21 persons) with speeds ranging from 1 m/s to 2.5 m/s for mid-rise applications. They operate on three-phase power and require careful traffic analysis to determine the right number and size of cars for your building. Features include automatic sliding doors, hall call buttons, car operating panels, and destination dispatch systems.

3. MRL (Machine Room Less) Elevator

The most significant elevator innovation of the past two decades. MRL elevators house the machine and controller within the shaft, eliminating the need for a dedicated machine room. This saves 10–15 m² of valuable floor space per elevator. Available in capacities from 320 kg to 1600 kg, MRL elevators serve up to 16 floors at speeds of 1–2 m/s. They use permanent magnet synchronous gearless motors (PMSGM) that are highly energy-efficient and quiet. MRL is the preferred choice for new buildings and retrofits where space optimization is critical.

4. Hydraulic Elevator

A proven technology where a hydraulic cylinder and piston system moves the car. Hydraulic elevators excel at heavy loads (500–5000 kg) and low-rise applications (up to 6 floors). They are ideal for warehouses, factories, car parks, and low-rise commercial buildings. The machine room can be located at ground level adjacent to the shaft (not above), which is advantageous when overhead space is limited. However, hydraulic systems consume more energy than MRL or traction elevators and require regular oil changes and seal maintenance.

5. Traction Elevator (Geared & Gearless)

The workhorse of high-rise buildings. Traction elevators use steel ropes or belts passing over a drive sheave connected to an electric motor. Geared traction elevators use a gearbox to drive the sheave (suited for mid-rise, speeds up to 2.5 m/s), while gearless traction elevators have the motor directly coupled to the sheave (suited for high-rise, speeds up to 10 m/s). For buildings above 12 floors in Chennai, gearless traction is the standard. They require a machine room located directly above the shaft.

6. Glass / Capsule Elevator

Aesthetic-focused elevators with transparent glass cabins and often glass-backed shafts. They serve 2–10 floors with capacities of 320–1000 kg. Popular in luxury villas, showrooms, shopping malls, and hotel lobbies. Glass elevators are available in MRL or hydraulic configurations. The glass panels require specialized cleaning and maintenance, especially in Chennai's coastal environment where salt accumulation can reduce transparency over time.

Step 2: Determine the Right Capacity

Capacity is measured in kilograms (kg) and expressed as the number of persons the elevator can carry (1 person ≈ 75 kg as per IS 14665). Undersizing leads to excessive wait times and overcrowding. Oversizing wastes energy, increases installation cost, and occupies unnecessary shaft space.

For apartment buildings, a common rule of thumb is one elevator per 30–40 units. Buildings with 12+ floors typically require two elevators — one for passenger traffic and one service/goods elevator. Traffic simulation studies during the design phase help optimize the number, capacity, and speed of elevators for commercial projects.

Step 3: Choose the Right Speed

Elevator speed is measured in metres per second (m/s). The right speed balances passenger wait time expectations with cost and energy consumption. Faster elevators require more powerful motors, sophisticated controllers, and enhanced safety systems — all adding to the cost.

• 0.5–1 m/s: Ideal for home elevators and buildings up to 4 floors. Smooth, quiet, and energy-efficient.
• 1–1.75 m/s: Standard for residential apartments up to 10 floors and mid-rise commercial buildings.
• 2–2.5 m/s: Recommended for buildings with 11–20 floors. Provides acceptable wait times for medium-traffic buildings.
• 3–4 m/s: High-speed elevators for buildings with 21–40 floors. Requires gearless traction technology.
• 5–10 m/s: Ultra high-speed for skyscrapers above 40 floors. Rare in Chennai (current maximum building height is limited by CMDA regulations).

Speed selection also depends on the control system. Variable Voltage Variable Frequency (VVVF) drives provide smooth acceleration and deceleration, reducing mechanical wear and improving ride comfort compared to older dual-speed AC systems.

Step 4: Machine Room — To Have or Not to Have

One of the most consequential decisions in elevator selection is whether to have a machine room. This decision affects your building's structural design, usable floor area, and long-term maintenance convenience.

Machine Room Less (MRL)

MRL elevators use compact permanent magnet motors mounted on the guide rail at the top of the shaft. The controller is installed in a cabinet within the shaft or on the top floor landing. Benefits include: no machine room cost (saving ₹1–3 lakhs in construction), complete design flexibility, and easier installation in existing buildings. MRL is the default choice for new installations across Chennai for buildings up to 16 floors.

Traditional Machine Room

Required for traction elevators (geared and gearless) and most hydraulic installations. The machine room houses the motor, controller, governor, and cabling. A well-designed machine room provides easier access for maintenance, better cooling for equipment, and longer component life. However, it consumes 10–15 m² of premium floor space (typically on the roof), adds structural load, and increases construction cost.

Step 5: Energy Efficiency & Noise Considerations

Energy consumption and noise are two factors that elevator buyers often overlook — until the first electricity bill or the first complaint from a bedroom adjacent to the shaft.

Energy Efficiency

Modern elevators are significantly more energy-efficient than models from even a decade ago. Key technologies driving efficiency include:

• Regenerative Drives: Capture energy during braking and feed it back into the building's electrical system, reducing overall consumption by 25–40%.
• LED Lighting: Replacing fluorescent cabin lights with LEDs reduces lighting energy by 70–80%.
• Standby Mode: Elevators automatically switch to low-power standby when idle for a set period (typically 5–10 minutes).
• Permanent Magnet Motors: Used in MRL elevators, these motors are 15–20% more efficient than conventional induction motors.

Noise & Vibration

Elevator noise levels are measured in decibels (dB). A well-installed MRL elevator operates at 45–55 dB inside the cabin — comparable to a quiet conversation. Key noise sources include door operators (opening/closing), guide rail contact, and machine vibration transmitted through the building structure. For home installations, request acoustic isolation mounts between the guide rail brackets and the building structure. Always verify noise levels during the factory acceptance test (FAT) before installation.

Step 6: Safety Features to Prioritize

Elevator safety is governed by IS 14665 (Indian Standard for Electric Traction Elevators) and the Tamil Nadu Lift Act. Beyond regulatory compliance, certain features significantly enhance passenger safety and peace of mind.

For home elevators, we strongly recommend adding a CCTV camera inside the cabin and a telephone auto-dialer that contacts pre-programmed numbers during emergency. These are low-cost additions that provide significant peace of mind, especially when children or elderly family members use the elevator.

Step 7: Cabin Design & Customization

The elevator cabin is the most visible part of your investment. A thoughtfully designed cabin enhances user experience, complements your building's interior, and in commercial settings — reinforces your brand identity.

Cabin Materials

• Stainless Steel (304 Grade): Most popular choice for Chennai. Highly durable, corrosion-resistant (essential for coastal climate), easy to clean, and available in brushed, mirror, or textured finishes.
• Glass: Creates a spacious feel. Choose tempered (safety) glass with anti-fingerprint coating. Requires frequent cleaning in Chennai's dusty conditions.
• Wood Veneer / Laminate: Warm, residential aesthetic. Must be marine-grade or high-pressure laminate to withstand humidity. Not recommended for ground-floor installations with direct outdoor exposure.
• Paint / Powder Coating: Most affordable option. Limited durability compared to SS or laminate. Best for service or goods elevators.

Flooring & Lighting

Flooring options include vitrified tiles, granite, marble, and anti-skid rubber. For home elevators, consider heated flooring in colder months. Lighting should be LED with 150–200 lux illumination. Recessed downlights, cove lighting with RGB options, and skylight-effect panels are popular premium choices. Handrails in stainless steel or wooden finish improve accessibility for elderly users.

Step 8: Budget & Cost Factors

Elevator pricing in India spans a wide range depending on type, capacity, number of stops, and customization. Understanding the cost breakdown helps you allocate budget realistically and avoid surprises.

Typical price ranges for Chennai (2026):

Hidden Costs to Plan For

• Civil Works: Shaft construction, pit excavation, machine room (if needed), and structural reinforcement. Typically ₹1–5 lakhs depending on building condition.
• Electrical: Dedicated power supply, cabling from main panel to elevator, and backup power integration. ₹50,000–2 lakhs.
• Permits & Approvals: CMDA approval, Tamil Nadu Lift Act registration, and inspection fees. ₹25,000–75,000.
• AMC: Annual Maintenance Contract (covered in Step 10). ₹15,000–50,000 per year for home elevators.

Always request itemized quotations from at least three vendors. Compare not just the elevator price but also civil works scope, delivery timeline, warranty terms, and AMC rates. Beware of quotes that seem significantly lower than market rates — they often exclude critical components or use sub-standard materials.

Step 9: Plan the Installation Timeline

Understanding the installation timeline helps you coordinate with your construction schedule and set realistic expectations with building users.

Total estimated timeline: Home elevators — 2 to 4 weeks. Commercial passenger elevators — 4 to 8 weeks. Complex multi-elevator projects — 8 to 16 weeks. Delays often occur during civil preparation (unforeseen structural issues) and during testing/certification (compliance documentation delays). Build a buffer of 2 weeks into your project timeline.

Step 10: Evaluate Warranty & AMC

An elevator is a long-term asset. The warranty and Annual Maintenance Contract (AMC) terms you negotiate at purchase will define your ownership experience for the next 20+ years.

Standard Warranty Coverage

Reputable manufacturers offer a minimum 12-month comprehensive warranty covering all parts, labour, and service calls. Premium brands now offer extended warranties of 24–36 months on key components (motor, controller, drive). Verify what is excluded: often batteries, bulbs, and rubber seals are wear-and-tear items not covered under warranty.

Annual Maintenance Contract (AMC)

AMC plans come in two tiers:

• Basic AMC (₹15,000–25,000/year for home): Includes monthly preventive maintenance, emergency breakdown call-out, labour charges. Spare parts billed separately.
• Comprehensive AMC (₹25,000–50,000/year for home): All basic services PLUS full spare parts coverage including motor, controller, drive, door operator, and safety devices. Budget-friendly and recommended.

Expert Tips from Asco Engineers

Common Mistakes to Avoid

Final Checklist — Before You Buy

Use this checklist when evaluating proposals and meeting with elevator suppliers. Each checked item brings you closer to a successful installation.

Pros & Cons of Each Elevator Type

A side-by-side comparison of the advantages and limitations of each elevator technology.

Home Elevator (MRL)

Hydraulic Elevator

Traction Elevator (Gearless)

Cost & Feature Comparison

Compare the key specifications of each elevator type side by side to make an informed decision.