Metal roofing in Suffolk County typically runs $10-16 per square foot installed, compared to $5-9 for asphalt shingles. For an average 1,500 square foot roof, you’re looking at $15,000-24,000 for a complete metal roof replacement.The higher upfront cost pays for itself over time through energy savings, virtually zero maintenance, and the fact that you’ll never need another roof replacement. Most metal roofs last 50+ years with proper installation, while asphalt shingles need replacement every 20-25 years in Long Island’s harsh climate.When you factor in the energy savings from metal’s reflective properties and the increased home value, the long-term cost actually favors metal roofing significantly. Plus, many insurance companies offer discounts for metal roofs due to their superior storm resistance.