Roofing, Siding and Gutter Installations. Special Additions Construction is a roofing, siding, and trim company that leverages over 35 years of experience. We pay close attention to the work that we do and maintain a safe reputation on site. Our main goal is to satisfy our customer and we take every step we can to ensure that. We provide custom work in many areas of home and business exterior. We are proficient in flat-roofing systems, structural issues, new construction, and many more. We guarantee your satisfaction and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule a free estimate today