Should You Measure Maintenance Costs? A Practical Guide

Maintenance represents a fundamental cost of doing business and must be disclosed in financial statements. In many manufacturing plants, all maintenance expenditures—labor, parts, and overhead—are allocated to work orders, which in turn are assigned to specific assets, typically at the equipment or functional‑location level. In some facilities, even labor costs are captured directly on work orders, a process that demands substantial administrative effort and can be costly.

Like any measurement, tracking maintenance costs enables managers to compare actual spend against predefined targets and to intervene when variances are material. The most common response to a cost discrepancy is to rebuild, redesign, or replace the equipment in question.

For fixed manufacturing equipment, however, the decision to rebuild or replace is rarely driven by maintenance spend alone. Major overhauls usually stem from unreliability, high operating costs, a product that no longer competes in the market, failure to meet evolving environmental regulations, or excessive downtime for routine inspection and service.

In practice, maintenance cost is rarely the decisive factor. If an asset’s maintenance expenses appear high, it is almost certain that the equipment is unreliable, and the losses incurred from that unreliability dwarf the maintenance spend. Consequently, measuring reliability is far more valuable than simply recording maintenance costs.

Work‑order labor data are notoriously unreliable. Technicians who enter labor hours into the maintenance system often view the information as low value, leading to inaccuracies. Because detailed labor records rarely justify the recording cost, allocating maintenance labor to area accounts is typically the most sensible approach—except for mobile equipment, where maintenance cost can be a major consideration when deciding whether to overhaul or replace.

For infrastructure in manufacturing plants and service institutions, maintenance spend remains critical, but the decisions it informs are often subjective and rooted in management standards. For example, choosing to repaint a facility every five years versus every ten years is usually based on aesthetic preference rather than structural necessity.

Finally, publicly funded institutions frequently separate maintenance and redesign activities into distinct accounts. This segregation inflates administrative costs and heightens the importance of accurately capturing maintenance costs at the work‑order level.