Progress Billing & Invoicing Process for HVAC
The Progress Billing & Invoicing Process workflow supports HVAC contractors by creating a structured system for milestone-based billing. It includes verifying work progress, preparing invoices, securing approvals, and reconciling billing against budgets. Managers maintain accuracy and ensure compliance with contracts. By following this workflow, HVAC companies reduce disputes, protect margins, and improve efficiency. Clients benefit from progress-based billing transparency. Teams gain accountability through documented approvals. With this workflow in place, HVAC contractors can strengthen professionalism, improve cash flow, and deliver projects more reliably with financial control at every stage.
14 tasks
Review contract billing terms (schedule of values, milestones, or % complete)
Confirm current work progress with field team or site walk
Calculate percent complete for each line item or milestone
Draft the billing application or invoice with updated totals
Include approved change orders and any required documentation
Apply retainage according to contract terms
Attach backup documentation (photos, timecards, material receipts, etc.)
Review draft billing with project manager or leadership
Submit invoice or pay app to client or GC by required date
Confirm receipt and follow up on approval status
Track invoice aging and update accounts receivable records
Log payment once received and update job cost tracking
File billing documents and confirmations in project records
Communicate payment status with internal team
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