Total Cost of Maintenance
Total cost of maintenance captures all direct costs such as labour and parts plus indirect costs including planning overhead, spare parts carrying costs, and production losses attributable to maintenance downtime.
Total cost of maintenance is the comprehensive measure of all direct and indirect costs associated with maintaining an asset or group of assets over a defined period. Direct costs include labour (both in-house technicians and contracted services), parts and materials, consumables, and specialised tools or equipment used for maintenance tasks. Indirect costs include maintenance planning and supervision overhead, maintenance-related training, maintenance-related software and technology, inventory carrying costs for spare parts, and the cost of production losses attributable to maintenance downtime. Some organisations also include the cost of rework, warranty claims related to maintenance quality, and the opportunity cost of capital tied up in spare parts inventory. Total cost of maintenance differs from total cost of ownership (TCO) in that it focuses specifically on upkeep costs rather than the full lifecycle cost including acquisition, operation, and disposal. Calculating total cost of maintenance accurately requires a consistent cost allocation methodology that captures both the obvious direct expenses and the often-hidden indirect costs that can represent a substantial portion of the true maintenance burden.
Why it matters
Organisations that track only direct maintenance costs (labour and parts) understate the true cost of maintaining their assets, sometimes by 30 to 50 per cent. This can lead to under-investment in maintenance technology and process improvements that would reduce total cost. Understanding the full cost picture enables better comparison of in-house versus outsourced maintenance, justification of capital investment in reliability improvement, and identification of the largest cost drivers for targeted reduction. It also supports maintenance cost ratio benchmarking against industry standards.
How MapTrack helps
MapTrack captures all direct maintenance costs through work orders and purchase records, and provides the reporting framework to allocate indirect costs, enabling a complete view of total maintenance cost by asset, site, and asset class.
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Frequently asked questions
What costs should be included in total cost of maintenance?
A comprehensive total cost of maintenance includes direct labour (wages, benefits, overtime for maintenance staff), contractor and outsourced maintenance services, parts, materials, and consumables, maintenance-related software and technology, maintenance planning and supervision overhead, maintenance training and certification costs, inventory carrying costs for spare parts (warehousing, insurance, obsolescence), and the cost of production or operational losses directly attributable to maintenance activities (both planned and unplanned downtime).
How does total cost of maintenance differ from total cost of ownership?
Total cost of maintenance focuses specifically on the costs of keeping an asset in serviceable condition: labour, parts, tools, and related overhead. Total cost of ownership (TCO) is a broader metric that includes the full lifecycle: acquisition cost, installation, operator training, fuel and energy, maintenance, insurance, regulatory compliance, and disposal or residual value. Maintenance cost is one component of TCO, typically representing 20 to 40 per cent of the total depending on the asset type and lifecycle stage.
How can organisations reduce total cost of maintenance?
Effective strategies include shifting from reactive to preventive and predictive maintenance to reduce emergency repair costs, improving spare parts management to avoid expedited procurement premiums, investing in technician training to reduce rework and improve first-time fix rates, implementing reliability-centred maintenance to focus effort on the most critical failure modes, using digital work order and scheduling systems to improve labour productivity, and applying root cause analysis to eliminate recurring failures that drive repeat maintenance costs.
Related terms
Total Cost of Ownership (TCO)
Total Cost of Ownership (TCO) is a financial metric that captures all costs associated with owning and operating an asset over its entire lifecycle, including acquisition price, financing costs, maintenance and repair, fuel or energy, insurance, registration, operator costs, downtime costs, and disposal or residual value. TCO provides a comprehensive view of the true cost of an asset beyond its purchase price.
Operational Expenditure (OpEx)
Operational expenditure (OpEx) refers to the ongoing costs of running day-to-day business operations, including maintenance and repair costs, fuel and energy, software subscriptions, insurance, labour, consumables, and rental or lease payments. Unlike capital expenditure, OpEx is fully expensed in the accounting period in which it is incurred and is not capitalised on the balance sheet.
Work Order
A work order is a formal document or digital record that authorises and tracks a specific maintenance task. It typically includes the asset identification, description of work required, priority, assigned technician, parts needed, safety requirements, and completion details. Work orders provide a structured workflow from request through approval, execution, and closeout.
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