Articles tagged "ductwork"
A duct-replacement quote should show the new layout, insulation, access assumptions, and balancing plan. Use this scope worksheet to compare complete duct bids rather than linear feet alone.
Compare duct-sealing proposals by measured leakage, accessible joints, aerosol process limits, insulation, and retesting. The useful number is verified improvement, not a generic promise of savings.
A zoning retrofit is a controls and airflow project. Compare bids by thermostats, dampers, bypass or pressure control, equipment staging, wiring, and commissioning.
Compare HVAC replacement costs as a complete system: equipment selection, installation, supporting work, and operating assumptions behind the proposal.