The hidden costs of reactive maintenance and how to avoid them

Reactive maintenance looks cheaper on ledgers because it misses a lot of the total costs. They often fail to track lost production, secondary damage, paid overtime, expedited delivery on parts and shortened asset life.

These are all part of the true hidden cost of reactive maintenance. It’s a blind spot where costs accumulate fast. A 2023 ABB report found that facility outages cost the industrial business $125,000 per hour [1].

Plant leaders need to evaluate the way their companies maintain equipment to avoid such costs. For a comparison of the different types of maintenance strategies, see The complete guide to maintenance strategies in industrial automation.

What is reactive maintenance?

Reactive maintenance is when technicians perform repairs or replacements after a piece of equipment has failed. This typically happens when a company operates without routine checks. It prevents you from regularly assessing the condition of equipment until it's too late, and it fails.

Why reactive maintenance still dominates

Implementing a proactive maintenance strategy requires upfront funding for condition monitoring sensors and staff training. The problem is that many businesses have short-term capital constraints.

Running equipment to failure means companies avoid the initial maintenance costs. But maintenance costs now cost less than repairing or entirely replacing equipment later. This reactive cycle leaves insufficient time to analyse failure data or establish preventive schedules.

Without a routine maintenance strategy, teams spend their shifts responding to emergency breakdowns. There’s not enough time for them to analyse failure data or plan interventions.

Managers also face tight quarterly budgets and push maintenance costs to protect short-term cash flow. This combination of factors causes the cycle of continuous repairs and replacements and keeps companies stuck in costly reactive maintenance.

The visible costs 

The visible costs are the obvious line items on the ledger. When a motor fails, the accounts department sees the cost of the replacement part.  

They also record the technician's hourly rate for the repair. Emergency work is less structured. Technicians identify faults under pressure, locate manuals and gather tools while the production line sits idle.

The hidden costs 

Unplanned downtime and lost production 

When a critical piece of equipment stops operating, all of the employees on the line must wait for the equipment to be repaired before they can get paid. This unplanned downtime leads to overhead expenses and wages paid when no product is being produced.

According to Deloitte Research, poor maintenance practices can actually reduce the overall productive capacity of a facility anywhere from 5 to 20% [2].   

Secondary damage and cascading failures 

Without maintenance, components are more likely to break and damage other components. For instance, when a bearing wears out and seizes, it can also damage the motor housing.  

A minor component failure can turn into a costlier mechanical rebuild. With proper maintenance, components don’t have a chance to break and potentially damage other components, saving you repair/replacement costs. 

Safety incidents and regulatory exposure 

Breakdown maintenance comes with physical risks and technicians often work in high-pressure environments to restore production. They may rush isolation procedures or take risks they would avoid during a scheduled outage. 

The UK Health and Safety Executive (HSE) reported 11 fatal worker injuries in 2024/25. This follows an annual average of 17 fatalities over the preceding five years [3]. A reactive maintenance culture increases safety risks and the likelihood of regulatory fines. 

Overtime and expedited logistics 

Breakdowns can happen at any time. And plants pay overtime surcharge for engineers to do repairs or replacements outside of normal working hours if they’re not already on shift. Procurement teams may also have to pay hefty premiums for expedited delivery on emergency parts if they’re not stocked up.  

Reduced asset lifespan 

Sudden failures can cause irreversible damage to equipment. Technicians doing emergency repairs may not have the time to properly scope out the full extent of the damage. This can result in costly capital assets failing again and being written off sooner than anticipated by the original manufacturer. 

Insurance and compliance costs 

Insurers evaluate the risk profile of a facility when offering insurance premiums. Facilities with frequent breakdowns and poor maintenance records typically pay higher premiums.  

The ISO 55000 standard encourages facilities to examine all of the costs associated with their equipment for the entire life of the asset. There are many hidden compliance penalties to be considered by a facility when looking at the balance sheet [4]. 

How to calculate your true reactive maintenance cost

The five factors below should be used to understand the total financial impact of equipment failure: 

• Direct Labour - The sum of internal and contractor hours multiplied by their respective hourly rates 
• Direct Materials - The total cost of replacement parts plus any premiums paid for expedited freight 
• Lost Production - The duration of downtime multiplied by the hourly revenue potential of the affected line
• Operator Cost - The wages paid to operators while they remain idle during the repair process
• Restart Waste - The cost of raw materials scrapped during the machine restart and recalibration sequence

Practical steps for maintenance cost reduction

A large part of reducing maintenance costs is through simple and disciplined organisational changes. McKinsey believes digitally enabled maintenance and reliability programmes can reduce maintenance costs by 18% to 25% [5].

The following three steps can help you figure out where and how to reduce your plant’s maintenance costs.  

• Step 1 - Identify the worst-performing equipment. Access the maintenance management system to determine the five machines that have produced the most downtime in the last six months.
• Step 2 -  Create a basic preventive maintenance schedule specifically for these five machines only. Basic tasks such as monthly lubrication, drive belt tension and visual inspection will catch the majority of failure causes before they happen.
• Step 3 - Ensure that any critical spare part for the top five bottleneck machines is always in the inventory. EU Automation acts as an external reserve, supplying components on demand and reducing repair times without increasing storage costs.

Once these operational foundations are stable, a facility can look at more advanced condition monitoring and data analytics.

When reactive maintenance could be the right choice 

Equipment with inexpensive replacement parts that do not affect overall production majorly may be better suited for reactive maintenance. For example, a warehouse extraction fan or secondary water pump would not merit the cost of sensors for surveillance.  

Running equipment to failure can be a perfectly rational strategy as long as it is consciously applied as part of a reliability-centred maintenance (RCM) plan. 

Conclusion

Every reactive maintenance job takes teams away from planning preventive maintenance and keeps them stuck in this costly familiar loop.

Start small by creating a preventive maintenance schedule for the few worst-performing machines. Prioritise by the equipment that has the biggest impact on your production line and work your way down the list.

Unexpected breakdowns are still bound to happen. But they will happen less often when teams are regularly maintaining equipment. Big costly issues can be found earlier and production will tick over more smoothly. 

For facilities dealing with the high hidden costs of unexpected breakdowns, EU Automation helps engineering teams source components fast. This minimises emergency procurement costs and reduces unplanned downtime on critical lines.

References 

[1] Value of Reliability: ABB Survey Report 2023  

[2] Deloitte: Asset Optimization: Predictive Maintenance 

[3] HSE: Manufacturing statistics in Great Britain, 2025 

[4] ISO 55000:2014 Asset management — Overview, principles and terminology 

[5] McKinsey: Digitally enabled reliability: Beyond predictive maintenance