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How GCs Can Improve Change Order Management and Protect Profit

Change order management is an important discipline for general contractors: Change orders are often the difference between getting paid for extra work, and donating your time and materials to the project. 

It’s inevitable that owner requests and changes happen over the course of a construction project. GCs must log changes and get approvals before the work erodes your already-slim profit in ways that are hard to spot. 

Change orders are a risk when they’re not managed. But with discipline and clear processes in place, they’re also one of the easiest ways to protect revenue beyond the original contract.  

Change orders can dramatically impact project profitability. 

According to FMI’s survey report, What High Performers Do Differently During Execution (Part 2), change orders can dramatically impact project profitability.  

Tight change order control is one discipline that separates successful general contractors from less disciplined organizations 

Improve forecasting for stronger margin control 

Once approved, change orders should update the contract value, budget, commitments, labor plans, schedule, and forecast. If those updates happen in separate spreadsheets or disconnected systems, you may not see the margin impact until too late. 

Forecasting isn’t about forms, according to the FMI report. Forecasting means knowing where the project is headed while there is still time to act. 

The report found that firms with accurate, consistent cost-to-complete forecasts meet or exceed profit targets 92% of the time. Profit reliability drops to 73% for mostly accurate forecasts and 42% when forecasts are inaccurate.  

Accurate forecasts meet or exceed profit targets 92% of the time. Mostly accurate forecasts meet profit targets 73% of the time, while inaccurate forecasts meet profit targets just 42% of the time. 

If a GC logs and approves change orders but does not update the forecast, the business is operating with an outdated margin. The project may look healthy in the change log but unhealthy in the field.  

A connected cost workflow like Kahua’s Cost Management Suite helps the team see what each approved, pending or rejected change means for contract value, committed cost, projected cost, and expected margin.  

Change orders can be revenue opportunities or profit risks 

Each undocumented change is potential financial exposure. 

Revised drawings, owner requests, and changes in scope should prompt a look at the original contract. If the change is not there, the GC should log it, determine price and schedule impact, and get documented approval from the owner.  

Without that discipline, revenue that should be captured through a change order turn into unapproved work, often at the expense of the GC. 

FMI calls change orders “the litmus test, because they show whether a contractor’s operating system holds up under pressure. A GC may have a process on paper, but the real test happens when the team is busy and someone wants the work done now. 

Not every change order creates easy profit, but disciplined GCs are better positioned to capture the cost, markup, delay impact, and of course documentation needed to protect margin. 

Schedule impact belongs in the change record 

A construction change order is not just a price adjustment. 

Changes in scope or owner requests may change labor needs and schedules. Even when the direct cost of the change is documented, the disruption to the schedule can still impact profit for GCs. 

FMI found that firms with highly consistent change order processes meet or exceed schedule expectations about 80% of the time, compared with about 65% for firms with less consistent processes.  

If the change affects schedule, labor, or procurement, those impacts need to be documented before they become invisible. A change-order log that captures only direct cost can still leave money on the table. 

A change record should include: 

  • What changed 

  • Who requested or directed it 

  • Which drawings, RFIs, field conditions or instructions support it 

  • What is the direct cost 

  • What is the schedule impact  

  • Which trades are affected 

  • What work is being performed before approval 

  • What budget, commitment or forecast needs to change 

No one wants to slow the job down, but you need to demonstrate the impact and get paid for the work. 

Written authorization keeps work billable 

GCs often proceed with owner-requested changes because they want to protect the relationship. 

It’s a good instinct, but verbal requests can become a margin problem, fast!  

A project manager might get a casual owner request, and the subcontractor might get started to keep the schedule on track. The stakeholders might understand the urgencybut not everyone has agreed on the price. 

No work proceeds without written authorization, according to FMI.  

That standard protects all parties involved: Owners get a clear record of what changed and what it costs. GCs get a defensible way to ensure proper payment. And subs have a better understanding of approved work. 

In this way, change-order controls are a revenue advantage for GCs.  

Use subcontractor input to price the change order

Change orders can also help for specialty trades.  

FMI found that specialty subcontractors with highly effective change order processes meet or exceed profit-margin targets 87% of the time, compared with 64% for firms with less-effective processes. 

If information related to changes and requests lives in a text thread or a email, the change order may be submitted without accounting for the full impact.  

This can lead to disputes and delays in approval (and payment). It can also train your project teams to underprice changed work. 

FMI suggests including specialty contractors into the change order process earlier so technical details and pricing can be clarified faster.  

Early input from subs results in: 

  • Better pricing: People closest to the work understand the real impact.  

  • Faster approvals: The owner gets a clear, well-documented request.  

  • Less profit fade: Fewer costs are absorbed informally.  

Learn more about Kahua for Subcontractors. 

A practical change-order workflow for GCs 

Strong change order management doesn’t need to be complicated, but it should be consistent enough that teams use it under pressure. 

A GC-focused workflow should specify: 

  • Triggers for logging a potential change, including owner direction, field conditions, drawing revisions, RFIs, and scope clarifications.  

  • Required documentation, including photos, field notes, affected drawings, meeting minutes, correspondence, and trade input.  

  • Pricing expectations, including labor, materials, equipment, subcontractor costs, overhead, markup, and schedule impact.  

  • Approval rules that require written authorization before work happens.  

  • At-risk work tracking so leadership can see exposure before it becomes a dispute.  

  • Forecast updates so approved and pending changes are reflected in cost-to-complete.  

  • Reporting standards so executives can compare change exposure across projects.  

Nearly 90% of contractors report having a defined project management playbook, but only 24% apply it consistently across projects.  

Logged changes protect the job and the business 

Change orders are one of the few places where GCs can recover added cost, protect the schedule, and improve revenue after the contract is signed. 

GCs who log changes in the moment, gets the owner’s written approval, and updates the forecast is going to get paid for the work they perform.  

GCs who rely on memory and scraps of paper may still finish the jobbut they’re probably leaving money on the table. 

What can you do to tighten your change order controls? Remember FMI’s rule of thumb: “No work proceeds without written authorization. 

See how Kahua for General Contractors helps GCs connect change management, cost control, and field visibility in one place.