Addition Contractors in Holtsville, NY

"They did a wonderful job, and I could not have been happier, with the work they did and how easy they were to deal with."

"Job was performed to our satisfaction. Contractor was punctual and fair with pricing the initial project and changes along the course of the project."

"Yes—Anthony absolutely got the job done right and efficiently. This was a complex deck project that required special permitting, coordination with an electrician, and integration with hot tub installers, and Anthony handled it with professionalism from start to finish. He went out of his way to secure a special contractor permit and was consistently communicative, proactive about potential issues, and clear about solutions. When other vendors were hesitant or negative, Anthony stayed focused and kept the project moving forward. He worked seamlessly with the electrician and hot tub team and was on site for the hot tub delivery, making the installation smooth and stress-free. The final product is beyond perfect—it’s exactly what we envisioned. High-end craftsmanship, exceptional value, and a true professional. I would recommend him without hesitation."

"DJT Development, LLC were reliable, punctual, on budget and I couldn't expect anything more from a contracting company!"

"Eddie was great to work with! We had a limited time frame to adhere to town inspections and Eddie and his team knew exactly what we needed and quickly got the job done. The results were great and even the inspector acknowledged the impressive repair. They were able to put a knocked out garage wall back on the foundation and repair the interior dry wall. I would recommend this company for any professional contract work due to their reasonable price, ease to work with and quality of work."

"I hired DCS to renovate a house for my mother. They had to re-frame walls, move doorways, gut reno 2 bathrooms and the kitchen. They finished the drywall, installed the new tile and cabinets, replaced flooring, and installed a new tile fireplace surround and built a custom wood mantle. Great carpenters. Dick Strine, the principal, is so knowledgeable and thorough. If he can figure out where a problem is coming from in your house, no one can. Great customer service. They have also worked for my in-laws, including building one very large house and renovating another."

"I cannot say enough wonderful things about Keith Coco and his team! From the very beginning, they listened to my ideas, understood my vision, and then brought it to life in a way that completely exceeded my expectations. They built our gazebo and pool deck, and the craftsmanship, attention to detail, and quality of their work are absolutely incredible. What I had pictured in my mind became even more beautiful than I imagined! Keith and his team were professional, knowledgeable, hardworking, and truly took pride in every detail of the project. It’s not always easy to find a company that delivers exactly what they promise — and then goes beyond it — but they absolutely did. We couldn’t be happier with the finished result. Our backyard has been completely transformed into a space we are going to enjoy with family and friends for years to come. Thank you, Keith Coco and team, for taking my vision and turning it into something even better than I dreamed! I would recommend them without"

"Giovanni and his crew were very professional and did a wonderful renovation to my garage. Any question or concerns I had were answered to my satisfaction . I would highly recommend them for any work you may have. Mike B"

"No job is too small or big!"