Elevator diligence should connect equipment, service, outages, inspection and testing, known deficiencies, obsolescence, modernization, and reserve timing.
Start with the transportation the property depends on
The inventory should distinguish passenger, service, freight, hospital, limited-use, accessibility, escalator, moving-walk, material, and other conveyance types as applicable. For each unit, record identifier, location, floors served, capacity, drive or system type, controller, door equipment, installation date, major alteration or modernization date, maintenance provider, operating status, and the role it plays in normal and emergency operations.
Redundancy is property-specific. Two elevators do not provide effective redundancy if they serve different areas, share critical equipment, cannot support the same occupants or loading, or are both affected by one modernization project. Hotels, hospitals, high-rises, parking structures, transit-linked properties, and mixed-use buildings may have very different consequences when one unit is unavailable.
Read reliability through records, not one ride
Request the maintenance contract and scope, maintenance control information where applicable, preventive-maintenance history, callback and trouble logs, shutdowns, entrapments, repair proposals, invoices, parts replacements, unresolved recommendations, monitoring reports, and owner correspondence. The record should distinguish planned outage, nuisance callback, recurring fault, misuse, vandalism, water exposure, power or building-system problem, and equipment failure.
A unit can start, stop, level, and open its doors during a walkthrough while carrying a significant history of intermittent outages or difficult-to-source parts. Conversely, an isolated recent callback does not prove broad unreliability. Frequency, duration, cause, recurrence, response time, affected unit, and operating consequence give the history meaning.
Separate jurisdictional status from consultant observation
Inspection certificates, test records, permits, violations, correction filings, fire-service or emergency-operation records, and authority correspondence should be organized by unit and date. The applicable authority, adopted code edition, inspection and test intervals, professional roles, and open requirements vary by jurisdiction and equipment; they should be confirmed for the property rather than inferred from another market.
ASME A17.1/CSA B44 addresses design, installation, operation, inspection, testing, maintenance, alteration, and repair, while the broader ASME A17 series includes guidance for inspection and existing equipment. The presence of an inspection record or certificate does not replace an equipment condition assessment, and a general property consultant should not represent a brief observation as a jurisdictional compliance determination.
Look for the capital story behind the equipment
Major planning questions may involve controllers, drives, motors or pumps, machines, ropes or suspension means, doors and operators, fixtures, communications, cab interiors, wiring, hydraulic components, cylinder conditions, power, cooling or ventilation, machine spaces, hoistways, pits, water exposure, fire-service features, accessibility, security integration, and parts availability. The applicable components depend on the unit.
Age is only one input. Maintenance quality, usage, environment, equipment family, prior modernization, proprietary systems, manufacturer support, parts lead time, shutdown history, test results, building operation, and intended hold period can matter as much. Planning-level replacement assumptions should identify whether they represent repair, component modernization, controls modernization, full system modernization, or another defined scope.
Plan modernization as a building project
Elevator work can require design, permits, procurement, long-lead equipment, temporary operations, sequential shutdowns, electrical upgrades, cooling or ventilation, fire-alarm and sprinkler coordination, emergency communications, accessibility work, structural or architectural changes, hazardous-material review, testing, inspection, and owner or tenant communication. A vendor budget may not include every building-side cost.
The capital plan should identify unit sequence, expected downtime, service continuity, swing capacity, contractor access, equipment storage, testing, acceptance, contingency, and escalation. In an occupied building, the phasing strategy can be as important as the equipment price—especially when a single service elevator, stretcher-capable unit, accessible route, or loading connection must remain available.
Know when the baseline scope has reached its limit
A baseline PCA can review available records, interview property personnel, observe accessible general conditions, note reported deficiencies, and develop planning recommendations within its scope. It generally does not replace a hands-on elevator inspection, code review, maintenance audit, ride-quality study, testing, remaining-life analysis, detailed modernization design, or contractor bid.
A focused vertical-transportation consultant can be engaged before closing when reliability history, open violations, modernization proposals, repeated shutdowns, obsolete equipment, limited redundancy, or a major capital assumption could affect the transaction. KOW’s report should make that need visible, preserve the evidence and limitation, and connect specialist conclusions back into the transaction and reserve plan.
Primary sources
Sources and technical references.
Source review current as of September 1, 2026.