Elevator Modernization ROI Calculator

Elevator modernization beats full replacement on cost but has shorter remaining life.

Modernization cost

Replacement cost

Modernized life (years)

Replacement life (years)

Annual maintenance savings

Discount rate %

Modernization NPV advantage

$313,212

Modernization cost / year

$6,667

Replacement cost / year

$10,714

How the math works

Compare annualized cost + maintenance savings PV. Positive = modernize wins.

$120k/18yr = $6,667/yr vs $300k/28yr = $10,714/yr. Savings PV $60k. Modernize NPV advantage ≈ $168k.

How to Use

Enter modernization cost.
Enter full replacement cost.
Enter modernized expected life (years).
Enter replacement expected life (years).
Enter annual maintenance savings.
Enter discount rate %.
Read NPV of modernization vs replacement.

Frequently Asked Questions

When to modernize vs replace?

Elevator age 20-30 years + reasonable hoistway condition + cab intact: modernization typically wins. Age 35+ years, rail damage, cab corrosion, non-compliant: full replacement. Modernization: $80-200k/elevator for control + drive + fixtures. Full replacement: $150-500k/elevator including hoistway work. Modernized life: 15-20 years. Replacement life: 25-30 years. Cost/year often similar; speed and disruption different (modernize: 4-8 weeks vs replace: 8-16 weeks out of service).

What's modernized?

Controller (microprocessor vs relay): $25-60k. Drive (VFD regenerative): $15-40k. Door operator: $8-20k. Cab interior: $10-30k. Fixtures (COP, LEDs, hall stations): $5-15k. Ride quality improvements. Building management system integration. ADA-compliant features (voice, braille, leveling). Safety code updates (ASME A17.1 current). Destination dispatch (for multi-elevator banks): $25-75k add'l.

Maintenance savings?

Modernized elevator maintenance contract: $300-600/month vs $600-1,200/month for unmodernized (oil leaks, relay failures, parts sourcing). Downtime incidents drop 60-80%. Emergency callouts $800-2,000 each vs regular service calls. Total savings: $4-8k/year per elevator plus soft savings (tenant satisfaction, reduced complaints). Over 15-year modernized life: $60-120k savings.

Energy efficiency?

Modern regenerative VFD drives: capture 20-40% of braking energy back to building. Typical elevator uses 1,500-4,000 kWh/year; modernized saves 30-50% of that. On $0.12/kWh electricity: $60-240/year savings per elevator. LEED points available. Meets most green building codes (ASHRAE 90.1, Title 24). Electrification incentives: 2-10% of modernization cost rebated via utility programs.