What hvac contractors usually include
- Flow-down of prime contract
- Insurance minimums
- Payment and retainage
- Safety and site rules
- Job site address and customer contact for dispatch records
- Clear payment terms so progress billing does not stall
Example workflow
- Send an estimate before mobilization.
- Open a work order when the tech is on site.
- Issue a change order if scope expands mid-job.
- Invoice labor + materials, then receipt the payment.
- Exchange lien waivers with progress or final payment when required.
Content reviewed July 2026 for operational clarity. Always verify licensing and lien rules in your state. External reference: OSHA construction resources.