Best Roof Curbs in Otis, Colorado. Top 30 Roof Curbs in Otis, Colorado, ranked by rating, reviews, votes. Last updated on January 2025 . SITO Inc Otis, Colorado Roof Curbs Detail Address: 409 E 1st Avenue, Otis, Colorado 80743. Phone: (303) 825-4420. Categories of builders in Otis, Colorado Paint Wholesale Roof Curbs