
Air Sealing vs Insulation: What to Do Before Installing Mini Splits in NYC
Air sealing vs insulation before mini splits in NYC is not an either-or decision, but air sealing should come first. Sealing gaps around windows, doors, and penetrations costs $500 to $1,500 and eliminates the drafts that insulation alone cannot stop. Together, they reduce the heating and cooling load so your mini split system runs less and costs less to operate.








