We are a family-owned, Long Island based window company. We live and work here, and our families also live and work in the community. We take great pride in making Long Island a better place to live. When you do business with us, you deal directly with our family. Our mission is to please YOU! 

We prioritize your experience by sending a knowledgeable family member or team member to address your inquiries, provide expert guidance, and tailor a plan that fits your budget and requirements. Our commitment to respecting your time means we avoid sales tactics like pressure selling, PowerPoint presentations, or gimmicks. 

Our installation service includes a no-cost in-home consultation to accurately measure, price, and discuss the features and options of your project. Our installers are full-time, year-round employees of NSE Windows and are fully insured. They are experts in their craft and have in-depth knowledge of the product. 

We believe that we make the best decisions through education. That’s why each of our employees is thoroughly skilled at their work, upholding the highest level of expertise and training in their positions. Your window replacement project is our number-one priority, and we’ll devote ourselves to doing it right.

The replacement process varies depending on how you plan to install your windows. Whether you choose to do it yourself, hire a builder/contractor, or opt for our installation services, we are here to assist you every step of the way. 

In the unlikely event that any adjustments are needed down the road, we provide a five-year workmanship warranty with NSE Windows. Additionally, our products come with their own manufacturer warranties.  

Before you consider window replacement, you should evaluate your existing windows or doors. Signs that indicate immediate replacement are visible exposure to the outside, deterioration, and water damage such as wood rot and mold. If your windows are old, drafty, or difficult to operate, you should start thinking about replacement soon. However, cosmetic damage like chipped paint or old weather stripping, as well as condensation and frosting, may not require replacement and can often be addressed with proper care and maintenance. If you're unsure about what to look for, NSE Windows can help you evaluate your windows and provide advice on whether they can be fixed or if new replacement windows are recommended. 

We take pride in our punctuality, adherence to schedules, and staying within budget. Our integrity is upheld to the standard of "treating others as we would like to be treated." 

We're dedicated to building long-term relationships and we're excited to impress you with our top-notch products, friendly staff, expert window installation, and great pricing. Our goal is to make lasting connections, and we believe that happy clients who recommend us to their friends and come back for more are the best form of advertisement.