Doors & Windows in New Haven, CT

Our firm was set up in 1923. Vincenzo and Lucy Colavolpe opened a window shade manufacturing firm in New Haven, CT. Through the years our family has expanded along with our business. Times have changed and so have the products and choices. We welcome you to browse through our extensive product line,

NGD takes a new approach to the garage door industry. We're an expert dealer with national vendor accounts. Working at the local level throughout the country. We take the guesswork out of selecting a reputable contractor for your installation or repair, and can leverage our national buying power to ensure