Skylight installation in Riverhead typically ranges from $2,500 to $6,000, depending on the type of skylight, roof complexity, and interior finishing requirements. Fixed skylights are the most affordable option, while vented or automated models cost more but offer additional functionality.The biggest factor in cost is your roof type and pitch. A standard asphalt shingle roof with moderate pitch is straightforward. Steep roofs, slate, or tile require more labor and specialized techniques. We provide detailed estimates that break down exactly what you’re paying for—no surprises.