TL;DR: Unplanned production shutdowns cost industrial manufacturers an average of $125,000 per hour, and contractor-caused disruptions are among the most preventable. The right contractor reduces that risk through rigorous pre-construction planning, shift-aware scheduling, and a self-performing workforce that eliminates the coordination gaps where most disruptions originate.
Most plant managers have a number in their head for what downtime costs, and most of them know it's probably too low. The figure that most often gets cited is lost production. The figures that get overlooked include idle labor, spoiled materials, emergency repair premiums, schedule recovery costs, and the damage to customer relationships that doesn't show up on an invoice but shows up in the next contract negotiation.
When those costs are contractor-caused, the situation is different, because they didn't have to happen. Whether it's a system shut down without plant operations knowing, a crew unfamiliar with live equipment, or a schedule that didn't account for shift changeovers, the financial hit is the same as any other downtime event.
Here's what unplanned shutdowns actually cost, where contractor-caused disruptions tend to originate, and what to evaluate in a contractor before the work begins.
What an Unplanned Production Shutdown Actually Costs
According to ABB's survey of more than 3,200 global plant maintenance leaders, two-thirds of industrial companies experience unplanned downtime at least once a month, at an average cost of $125,000 per hour. For larger, high-volume operations, that figure climbs to well above $1 million per hour. Those are the direct costs. The indirect costs are harder to quantify but often more damaging over time:
- Missed customer shipment windows that trigger penalties or erode long-term contracts.
- Overtime and expedite costs to recover lost production.
- Materials scrapped or compromised when a line stops mid-process.
- Reputational damage with customers who start qualifying alternative suppliers.
Siemens' 2024 True Cost of Downtime report found that unscheduled downtime consumes roughly 11% of annual revenues for the world's largest industrial companies. For mid-sized manufacturers, one bad afternoon can wipe out a meaningful slice of the month's margin.
Where Do Contractor-Caused Shutdowns Come From?
Contractor-caused shutdowns rarely result from a single mistake. They tend to originate in gaps in communication, in planning, and in crew experience that compound over the course of a project until something costly happens.
The most common sources:
- Isolation conflicts. Work begins on a system that wasn't appropriately coordinated with plant operations, such as a valve that should have been tagged out wasn't, or was released on a production schedule the contractor didn't know about.
- Misaligned schedules. Work is planned around the contractor crew's availability rather than plant production windows. The right work ends up happening at the wrong time.
- Subcontractor coordination failures. When a general contractor relies on subcontractors for core trades, each handoff between organizations is a point where information about plant conditions or schedule constraints can be lost.
- Crews unfamiliar with active environments. Workers who haven't performed work inside operating facilities don't have the situational awareness that live-environment work requires, and may not recognize conditions that an experienced crew would act on immediately.
None of these are surprises. They're what happens when a contractor hasn't developed the discipline that working inside an operating plant actually requires.
How Pre-Construction Planning Reduces Shutdown Risk
Contractors who consistently deliver in active facilities don't treat pre-construction planning as a warm-up. It's a core part of the work, and the difference shows in how specific their preparation is before anyone sets foot on site.
Effective pre-construction planning for live-environment work includes:
- Coordination with plant operations to lock in working hours, isolation sequences, and any production holds, all documented and agreed to before work begins.
- Hazard analysis built around the facility's active systems, materials, and conditions, not a generic safety plan pulled from a previous job.
- Logistics planning that keeps construction traffic separated from plant operations and spells out how the crew fits into the facility's existing protocols.
- Contingency plans for the disruptions you can see coming (shift changeovers, isolation conflicts, plant upsets) so the crew has an agreed-upon response ready instead of figuring it out on the fly.
The goal isn't to eliminate uncertainty; active facilities are inherently dynamic. The goal is to ensure that when conditions change, the contractor's response is already planned. It's the kind of preparation CR Meyer brings to every active facility project before work starts.
Why Do Self-Performing Contractors Carry Lower Risk in Active Facilities?
One risk factor that doesn't get enough attention in active facility work is what happens when a general contractor relies on subcontractors for core trades like electrical, piping, or millwrighting. Every time information has to travel across organizational boundaries, from the plant, to the GC, to the sub, and back, there's another opportunity for something important about the facility's conditions to get lost or arrive too late.
Self-performing contractors don't have that problem. Their electricians, pipefitters, and millwrights are all under the same roof. They've worked together, they communicate through the same chain of command, and when something changes on the plant floor, the whole crew can respond without waiting on anyone outside the organization to get the message.
For plant managers, this distinction is important: it's the difference between a contractor who can adapt to a changing condition in minutes and one who has to make three phone calls before anything moves.
It's a distinction CR Meyer has built its model around, employing its own tradespeople across disciplines so the crew that shows up to your facility operates as one unit, not a collection of organizations.
Why Nationwide Scale Is a Risk Management Advantage
There's another dimension of contractor capability that rarely comes up in bid evaluations but matters considerably once a project is underway: the ability to scale.
A regional contractor working at the edge of its capacity has limited options when a project accelerates, scope expands, or a timeline compresses. They can try to hire, which takes time and introduces workers who haven't been through their systems, or they can tell you the schedule has to move. Neither answer works when your production calendar has no flexibility.
A contractor with a nationwide workforce has a different answer. When a project demands more resources, they pull from a broader bench of their own trained tradespeople rather than going to the open market. When scope shrinks or a phase shifts, they scale back without disruption.
For plant managers, that means schedule commitments backed by actual resource availability rather than best-case assumptions about local labor, and scope changes that become logistics adjustments instead of crises. CR Meyer operates nationally, with the workforce depth to right-size crews to what your project actually needs, using the same self-performing tradespeople and chain of command that keeps active facility work coordinated.
How to Evaluate a Contractor Before Work Begins
Standard prequalification forms are a starting point, but the questions that reveal real active facility capability, the kind that develops through years of repeated work in operating plants, go a level deeper:
- What does your pre-construction coordination process with plant operations look like? Ask for specifics, such as meeting cadence, what documentation is produced, and how isolation sequences are confirmed.
- Do you self-perform your core trades, or do you subcontract them? If subcontracted, how is coordination with plant operations managed across those relationships?
- What percentage of your work is executed inside operating facilities? Active facility discipline develops through experience, and a contractor who does this regularly is more qualified than one that does it only occasionally.
- Can you provide references from plant operations managers, not just project owners? The person responsible for keeping the plant running has a different perspective than the person who managed the contract.
- What is your workforce depth, and how do you handle scope changes or schedule compression mid-project? A contractor operating near capacity locally has fewer options when your timeline changes than one who can draw on a national bench of their own tradespeople.
Contractors who've done this work well will answer those questions with specifics. Those who haven't developed this capability will answer with generalities.
The Bottom Line
Equipment failures are expensive, and they're hard to completely prevent. But when downtime comes from a contractor, that's a different situation, because it didn't have to happen. Contractor-caused disruptions are a result of who you hired, how well the project was planned, and whether the crew knew what they were walking into.
That's worth keeping in mind when you're evaluating bids. A low number from a contractor who hasn't done this kind of work isn't a savings, it's a gamble. And the cost of losing that gamble lands on your facility, not theirs.
Want to go deeper on what active facility work requires from a contractor? Read: Why Working in an Operating Plant Is a Different Job Entirely. Or learn more about CR Meyer's approach to working in active facilities.
Frequently Asked Questions
What is the average cost of unplanned downtime in manufacturing?
According to ABB's survey of more than 3,200 global plant maintenance leaders, the average cost of unplanned downtime runs about $125,000 per hour across industrial manufacturers, and two-thirds of those companies deal with it at least once a month. For larger, high-volume operations, that figure climbs to well above $1 million per hour. Siemens' 2024 True Cost of Downtime report puts the broader impact in stark terms: unscheduled downtime costs the world's 500 largest companies roughly 11% of their annual revenues.
What causes contractor-related production shutdowns?
Most contractor-caused shutdowns trace back to a handful of recurring problems: equipment being isolated without proper coordination with plant operations, work scheduled around the contractor's availability rather than your production windows, communication breakdowns between subcontracted trades, and crews who simply haven't spent enough time working inside operating facilities to know what to watch for. None of these are flukes; they're predictable, and they're preventable.
How can you prevent contractor-caused downtime in an active facility?
It starts with contractor selection. Look for contractors who have a documented pre-construction coordination process with plant operations, who self-perform their core trades rather than subcontracting them, and who can point to a real track record of working inside operating facilities, not just construction sites. When you check references, talk to plant operations managers, not just project owners. They'll give you a more honest picture of how the contractor actually performed.
Why does using a self-performing contractor reduce shutdown risk?
When a general contractor subcontracts core trades, information has to travel across organizational boundaries, and that's where things get lost. Self-performing contractors have their own electricians, pipefitters, millwrights, and other tradespeople working under the same chain of command. When something changes on the plant floor, the whole crew can respond without waiting on an outside organization to get the message and relay it back to the field.
What questions should I ask a contractor before authorizing work in an operating facility?
A few that go beyond the standard prequalification form: How do you coordinate with plant operations before a project begins, and what does that process actually produce? Do you self-perform your core trades, or do you subcontract them? What share of your work happens inside operating facilities? What is your workforce depth, and how do you handle scope changes or schedule compression? And can you provide references specifically from plant operations managers? Contractors who've done this work well will answer those questions with specifics. Contractors who haven't will give you generalities.
Why does a contractor's scale and geographic reach matter?
A contractor operating at the edge of its local capacity has limited options when scope expands or timelines compress. A nationwide contractor can draw on a broader bench of its own trained tradespeople to staff up quickly, or scale back without disruption when a phase shifts. That flexibility protects your schedule in ways a capacity-constrained regional contractor simply can't.