This construction change order template uses an Add/Remove/Modify delta format to stop disputes and speed approvals.
Most change orders fail because they’re written like explanations instead of deltas. The only format that scales is the same one that scales in engineering: show what changed against a baseline.
Use three buckets:
- Add (new work)
- Remove (work deleted)
- Modify (work changed)
This post gives you a copy/paste construction change order template in delta format, plus worked examples.
Generate a Change Order Delta Pack in Remodlr Pro → (Start Industry Pro)
Who this is for
Best for: contractors, estimators, PMs, adjusters managing scope changes mid-project
Use when: concealed damage is found, scope expands, materials change, or code/inspection requirements appear
60-second approval checklist (use this every time)
Change orders get approved faster when:
- baseline is referenced (version/date)
- delta is written as Add/Remove/Modify (no storytelling)
- evidence is attached (when applicable)
- cost impact is itemized and explicit
- schedule impact is explicit
- signature is captured before work starts
If any of those are missing, expect delays or disputes.
Construction change order template (copy/paste)
Project:
- Project name:
- Address:
- Client:
- Date:
- Change order number:
Baseline reference (required):
- Baseline scope version/date (proposal, SOW, estimate revision):
- Baseline line item(s) affected (if known):
Requested by:
- Owner / PM / Contractor / AHJ / Concealed condition
Reason for change:
- Concealed condition / Owner request / Code requirement / Availability / Design change / Inspection
ADD (new work):
REMOVE (work deleted):
MODIFY (work changed):
- Item:
- Old:
- New:
Evidence attached (as applicable):
- Photos
- Measurements
- Moisture readings
- Inspection note / AHJ requirement
- Manufacturer notice / lead time
- Selection/upgrade approval
- Other:
Cost impact:
- Labor:
- Materials:
- Equipment:
- O&P:
- Tax/fees:
- Total change:
Schedule impact:
- Additional days:
- Affected milestones:
Pricing method:
- Fixed price (preferred)
- Time & materials with Not-to-Exceed cap (NTE): $_____
- NTE rule: if costs exceed NTE, work pauses for written re-approval.
Payment timing:
- Due upon approval / Due at milestone / Due at completion
Approval (required before execution):
- Owner/Client name + signature + date
- Contractor name + signature + date
Evidence-by-reason (what to attach so it doesn’t get disputed)
Concealed condition:
- photos of condition
- measurement showing affected area
- moisture reading (if relevant)
Code requirement / inspection:
- inspector note or AHJ requirement
- photo of issue (if applicable)
Availability / lead time:
- manufacturer notice, discontinued note, or lead-time confirmation
Owner upgrade request:
- written selection/approval (email/text screenshot is fine)
- product/spec photo or link (optional)
This is what keeps “required” from turning into a debate.
Worked example 1: concealed plumbing damage (delta format)
Baseline reference:
- Proposal v1 dated [date], “Guest Bath Repair Scope”
Reason:
- Concealed condition discovered after vanity removal
ADD:
- Add replacement of damaged supply valve and 18 inches of supply line
- Add replacement of water-damaged drywall behind vanity, approx 12 sq ft
- Add dry-out time and moisture verification prior to close
REMOVE:
- Remove “reinstall existing supply valve” (no longer viable)
MODIFY:
- Modify “drywall repair” from 32 sq ft to 44 sq ft total (includes behind vanity)
Evidence:
- Photos of corrosion/leak point
- Photos of damaged drywall
- Moisture reading photo (if applicable)
Cost impact:
- Labor: $___
- Materials: $___
- O&P: $___
- Total: $___
Schedule impact:
- +1 working day (dry-out/verification)
Approval:
- Signed before work continues
Worked example 2: owner upgrade (tile selection change)
Baseline reference:
- SOW v2 dated [date], “Kitchen Backsplash Install”
Reason:
- Owner request (upgrade)
ADD:
- Add upgraded tile material per approved selection
- Add upgraded grout/sealer (if applicable)
REMOVE:
- Remove baseline tile allowance/material
MODIFY:
- Modify install scope to include additional cutting/detailing as required by new tile format
Evidence:
- Owner selection approval (email/text)
- Product spec link or photo (optional)
Cost impact:
- Material delta: $___
- Labor delta: $___
- Total: $___
Schedule impact:
- +___ days (if lead time changes)
Approval:
- Signed before procurement/installation
Common change order mistakes (avoid these)
- no baseline reference (“we talked about it”)
- no evidence for concealed conditions
- T&M with no cap
- change approved after the work is already done
- mixing new work into the original invoice without a signed CO
FAQs
What makes a change order valid?
A clear baseline reference, written delta (Add/Remove/Modify), cost/schedule impact, and approval before execution.
Should change orders be signed before work starts?
Yes. Always. No signature, no work.
What if we can’t price it exactly yet?
Use Time & Materials with a Not-to-Exceed cap and define the re-approval trigger.
Next step
If you want this generated automatically from your baseline scope and the new condition, Remodlr Pro produces change order delta packs with evidence and approvals built in.
Generate a Change Order Delta Pack in Remodlr Pro → (Start Industry Pro)
Safety note
This content is for documentation and workflow support only. Permit/inspection requirements vary by jurisdiction—verify with the AHJ. Use licensed professionals for regulated work (electrical, plumbing, gas, structural, fire/life safety).
