Independent planning tools for U.S. homeowners • Estimates are for budgeting, not contractor quotes
During your project

Change-Order Cost Control Workbook

Check what changed, what should be credited, and where the revised total comes from.

22 pages · 3 worked cases · 6 worksheets · 30 fillable fields · English PDF · US Letter

£9.99 GBP · One-time purchase.

Preview 3 real pages before buying

Why buy this workbook?

Your practical output is one review packet joining the accepted baseline, proposed change, net price, decision evidence and later invoice. Use it when changes arrive during an existing project.

  • Show both additions and supported credits in a net-price bridge.
  • Check quantity changes, percentage bases and shared fees.
  • Keep accepted contract value, pending exposure and cash timing separate.
  • Match invoices to change IDs and identify duplicate billing questions.

Who should use it?

U.S. homeowners with an existing agreement and a specific proposed change. Bring the actual contract, revisions and provider evidence.

Who should skip it?

If you only need a quick check, start with the free change-order checklist and worked example. This is not a technical design, legal contract, professional valuation or substitute for local advice.

Overlap with existing books

The Contractor Quote Comparison Playbook and general renovation books already introduce change budgets. This workbook adds a focused revision-to-invoice record set and three new cases. Buying both is optional.

Inside the actual PDF

  1. One decision, one traceable record
  2. Freeze the baseline before comparing
  3. Split the request into priceable parts
  4. Build a net-price bridge
  5. Case 1: a substitution with a credit
  6. Keep approvals separate from exposure
  7. Case 2: quantities and linked costs
  8. Connect timing without double counting
  9. Case 3: approved value versus forecast
  10. Reconcile the invoice to the change
  11. Run the review packet in one sitting

Six reusable worksheets

  • Baseline and document register
  • Scope difference and credit map
  • Net-price bridge
  • Revision and decision log
  • Forecast and payment timing
  • Invoice and closeout match

Also includes copy-ready provider questions, source boundaries and a final review. Fields are interactive but do not calculate automatically. Save and reopen your PDF in a compatible reader. Your worksheet entries are not uploaded.

Try the calculation

Invented USD case: $1,280 material + $360 labor - $900 supported credit = $740. With an assumed 10% markup on that net amount and no additional tax, the change is $814. A real agreement may use different bases or fees.

Use the quote comparison tool for initial proposals; this workbook handles the later changes.

Real pages from this edition

Actual PDF page: Case 1: substitution and credit
Case 1: substitution and credit
Actual PDF page: Case 3: approved value versus forecast
Case 3: approved value versus forecast
Actual PDF page: Reusable net-price bridge worksheet
Reusable net-price bridge worksheet

Verified source context

Primary sources checked October 26, 2026. State-specific guidance is labeled; these organizations do not endorse the book.

  • FTC: Written estimates, state variation and retaining dispute records; general consumer guidance.
  • California CSLB: California-specific written, signed change-order guidance; not a nationwide rule.
  • Mississippi State Board of Contractors: Contract detail, payment schedule, dates, permit responsibility and warranties; local context.

Personal use includes printing worksheets and sharing completed records with your own contractors and advisers. Do not redistribute the blank book.

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