Cedar siding installation on Fire Island costs 15-25% more than mainland projects due to ferry transportation, specialized materials, and coastal installation requirements. However, this investment delivers dramatically lower long-term costs.Your total investment depends on home size, cedar grade, and architectural complexity. We provide detailed estimates including permits, transportation, and marine-grade materials so you understand exactly what you’re paying for.Consider cedar’s 30-50 year lifespan with minimal maintenance versus cheaper alternatives needing replacement every 10-15 years in coastal conditions. Long-term, cedar proves the most economical choice for Fire Island homes.