Miami is a high cost-of-living market — pricing guide and permit rules below.
Miami hvac rates: $4,000-$14,000 per system. Always get 3 written quotes and verify FL licensing at Florida DBPR (myfloridalicense.com). Sales tax on materials: 7%.
Miami requires permits when work exceeds $500 or involves full system replacement. Your licensed contractor pulls the permit — if they ask you to pull it, that's a red flag.