Reference Data
Original contract number, project name, client and contractor legal names, and effective date to connect the change order to the parent agreement.
A formal change order reduces ambiguity by documenting scope, price, schedule shifts, and approvals so stakeholders share the same expectations and risks.
Project managers, site foremen, contractors, subcontractors, property managers, and owners commonly prepare or approve change orders during repair projects.
Use the listed roles below to confirm who should draft, review, and sign the change order before work proceeds.
A GC signs to authorize subcontractor changes and accepts revised budgets and schedules. Their approval often triggers purchase orders, subcontractor release forms, and lien waiver processes to protect project cash flow and lien rights.
Owners review cost and schedule impacts and sign to create binding change-of-scope terms. Owner signatures are required when funds or warranty obligations are affected or when contract price thresholds are exceeded.
Original contract number, project name, client and contractor legal names, and effective date to connect the change order to the parent agreement.
Clear, itemized description of work to be added, removed, or altered, including location, materials, dimensions, and any attached drawings or photos.
Line-item labor, materials, equipment, taxes, overhead, markup, and total net change so stakeholders can verify calculations.
New start and finish dates, critical-path effects, and milestone adjustments with a clear statement of who bears delay risk.
Signature blocks for authorized signers, printed name, title, date, and, where required, witness or notary information.
Supporting documents such as photos, vendor quotes, permit copies, and revised drawings to substantiate the change.
| Document Type | Typical Use | Signature Needed |
|---|---|---|
| Change Order | modify contract scope | |
| Amendment | alter contract terms | |
| Supplemental Agreement | add separate obligations | |
| Purchase Order | buy materials/services |
A roof leak required additional decking replacement and flashings
Unexpected asbestos removal added scope during system replacement
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