Vinyl siding installation in Suffolk County typically runs $5-9 per square foot for materials and labor. For an average 2,000 square foot Sag Harbor home, you’re looking at $12,000-23,000 total project cost, depending on material grade and complexity.The range depends on your home’s size, architectural details, and material choices. Basic vinyl siding keeps costs manageable, while insulated options like Prodigy siding add $2-4 per square foot but deliver energy savings that offset the difference over time.Additional costs include old siding removal ($1-3 per square foot), trim work, and any structural repairs discovered during prep. Reputable contractors provide detailed estimates after measuring your home and assessing current conditions.