Windows, Doors & Vinyl Siding Long Island, NY

Quality Home Replacement Products

As part of the largest window replacement company in the country, Window World of Long Island is proud to offer a variety of home replacement products in Farmingdale and surrounding areas. We are locally owned and nationally known, which means you’ll receive personalized service with the benefits of a large inventory to choose from. Our products are backed by a Lifetime Limited Warranty and are protected by the Good Housekeeping Seal. You can feel confident with your investment in any of of quality home replacement products, including:

Window Styles

Replacement Doors

Additional Products

Increase the Efficiency of Your Home

When it comes to saving on energy costs in your home, Window World of Long Island has got you covered. From window replacement to vinyl siding, our top-quality products are designed to better insulate your home and maximize heating and cooling efficiency. In fact, our vinyl windows are Energy Star Certified and meet SolarZone^TM energy-efficiency standards, which means you can rest assured knowing that your window frame is fully insulated and uses the latest technology in window glass. Contact us today to get a free in-home estimate!

Customer Reviews

I had a fantastic experience with window world. They came recommended from a friend and we called to set up a meeting with Matt. He took his time going over our wants and needs. The windows came in two weeks and the installation and follow up was amazing. - Stephanie C.
Always responsive and timely. Quality materials and products. Excellent group of sales people and workers. Happy to use them for all exterior improvements. Couldn't ask for better from home improvement contractor. - Paul F.
Throughout the entire process, Window World and their staff have been courteous, professional and attentive. Our order and job was always a priority. The work is impeccable, the quality of the product is top-notch and the staff is excellent. - Michael F.
We purchased 5 doors from Window World and we had an excellent experience with this company. The doors are great quality and the installer from this company was highly skilled and meticulous. I would highly recommend this company. - Teresa I.
I want to extend a special thank you to all the staff at Window World. You took good care of the homes of my two sons, daughters in-law, other family members and now us. I must mention that the availability of the Wells Fargo Loan and reasonable interest enabled me to more easily have the work done: new windows and sliding door in two buildings and at our family home.Today our house was done. I must compliment the three-man crew. They were quiet, capable, clean, caring, courteous, honest and skilled. You can be very proud to have such fabulous workers / employees. - Lynn