Home > Certified Marvin Installing Retailer



NSE Windows is proud to be Long Island’s ONLY Marvin Certified Installing Retailer. We choose to install Marvin windows and doors because of their performance, durability, and beauty. And our Marvin certification means our experience, expertise, and dedication to providing exceptional service can’t be beat.

We will help guide you through your window and door replacement project by helping you to:

  • Evaluate – first, we’ll evaluate your current windows and doors to determine which are in good shape, which can be repaired, and which need replacing.
  • Select – Then, we’ll walk you through the selection process to choose the products that best fit your home’s style, your design preferences, and your budget. By partnering with Marvin, you’ll also have access to financing options to help you secure the best rates when purchasing.
  • Install – Your new windows and doors will be installed by our Marvin-trained professionals, with respect to both vour time and vour home.

New. expertly installed windows and doors can improve and preserve vour home, save vou money, and make vour favorite spaces feel more comfortable and secure.

NSE Windows has the knowledge, skill, and reputation for installing quality Marvin windows and doors the right way, and we’re ready to help you with your upcoming replacement project.