Construction
A Change Order Process Contractors Can Actually Use
A useful change order turns a field conversation into an approved change before extra work becomes an invoice dispute.
Key takeaways
- Pause and document material scope changes before work continues
- Reference the original agreement and explain the exact difference
- Show price and schedule impact separately
- Keep approval evidence with the final invoice record
Define what triggers a change order
Write a company rule for changes that affect price, quantity, materials, responsibilities, exclusions, schedule, or the customer’s selection. Small clarifications can remain notes; a material difference should create a reviewable change record before the team relies on it.
The field employee should be able to flag the issue without negotiating unapproved terms. The authorized estimator or manager can then describe the change, calculate the impact, and send it through the customer decision process.
Make the document easy to compare
Reference the original proposal or contract number and affected section. State what is being added, removed, or replaced. Then show the change in price, tax treatment, deposit or payment schedule, and expected completion date if those are affected.
Avoid vague labels such as ‘extra work.’ The invoice line should be understandable months later without relying on someone’s memory of a phone call.
- Original document and job reference
- Reason for change
- Added and removed scope
- Price difference
- Schedule impact
- Customer decision and timestamp
Carry the approved change into billing
Once the customer approves, preserve the completed change record and attach its authorized amount to the job. The invoice can then include the approved extra as a separate line or part of an agreed billing structure.
If emergency work must proceed before normal approval, define that exception with counsel and document who authorized it, why delay was not practical, and what notice the customer received. Software cannot substitute for an approved company policy.
Practical answers
Frequently asked questions
What should a contractor change order include?
Include the original agreement reference, reason, exact scope difference, price and schedule impact, applicable terms, and documented customer approval.
Can a text message approve a change order?
Approval requirements depend on the contract and applicable law. Use a company process reviewed by qualified counsel and preserve the approval evidence with the job.
Should change orders appear separately on an invoice?
A separate, clearly described line often makes comparison easier. The billing format should match the approved change and the company’s accounting process.