Lafayette is a low-moderate cost-of-living market — pricing guide and permit rules below.
Lafayette window replacement rates: $3,000-$10,000 per system. Always get 3 written quotes and verify LA licensing at Louisiana LSLBC (lslbc.louisiana.gov). Sales tax on materials: 9%.
Lafayette requires permits when work exceeds $50,000 or involves full system replacement. Your licensed contractor pulls the permit — if they ask you to pull it, that's a red flag.