Customer Reviews

I had my house done with all new windows. One window had some kind of defect from the manufacturer but Window World did the right thing and replaced it no problems at all. Their installers and customer service is fantastic. I am very happy with their work. I would highly recommend Window World. They are the best beginning to the end of the job.
- Carol P.
Window World by far exceeded all of my expectations with both my window and siding installation. Our salesman was excellent about answering all of our questions and concerns. The work was performed so neatly that no one could tell that we had anything done. My house looked beautiful!
- Cee R.
Window World is always professional and courteous. The workers come when they say they will and call before to let you know they are on their way. They do great work and clean up after.
- Jen K.
It was a pleasure having our windows installed by Window World. Their prices are very reasonable and the work was neat and clean. They installed 13 new windows and a sliding glass door.
- George M.
Cannot say enough good things about how our sunroom came out. The staff is hardworking and trustworthy. Will definitely be using them again when we need to replace other windows and doors!
- Lindsey E.
We replaced eight of our very old windows and five very old basement windows. It was a stress-free experience. There is no high pressure, no games, no gimmicks. They just gave the estimate and answered any questions. A couple of weeks later, the windows were installed. The team was efficient, competent, knowledgeable, and neat.
- Fran Q.
The windows recommended for us were right on point. We like the quality and style. The price was well within our budget. The installers were very neat and professional. Next year, we plan to purchase a front door and several other windows for the basement and first floor.
- Chris R.
Excellent experience from start to finish. Calling was easy, I spoke with someone who listened, made a great suggestion for a different type of window that I was asking about and gave me a great price. The installers were friendly and professional and did a great job. We are so happy with our beautiful new windows.
- Justin P.
From start to finish a really great experience. I would definitely recommend to family, friends, neighbors, and co-workers. All of the employees were professional, courteous, and very knowledgeable making this a great place to do business with.
- Karen D.

Replacement Windows, Doors & Vinyl Siding Long Island, NY

When it comes to your home, gain a new level of confidence with Window World of Long Island’s quality replacement products. Our industry-leading windows, doors, and siding are equipped to boost your home’s aesthetic while improving its overall energy efficiency. When it comes to saving on energy costs in your home, Window World of Long Island has got you covered. Our top-quality products are designed to better insulate and maximize heating and cooling efficiency so you can enjoy your home all year round.