From the first day with the sales rep. Horrible Horrible Horrible. Misleading financial options. Broken promises just to get me to sign the contract. Horrible communication from him and installations... See more
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Michael Yanaros was great. He was professional and friendly without being condescending. Mike was well-informed and took time explaining terms and concepts. I didn't feel rushed or pressured to purcha... See more
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What a great team and the coordination on completing the job in one day was great. They added 10 windows with no problem and they were very professional. Cleaned up when they finished and left the hou... See more
Company replied
Today’s experience with Peter Farrell was seamless! The presentation was extremely thorough and exceeded all of our expectations, making the process of choosing styles and enhancements for our window... See more
Company replied
Company details
- Window Installation Service
- also in
- Construction Company
- Door Supplier
- PVC Windows Supplier
- Window Supplier
Why Window Nation is the best choice
Written by the company
- Energy Efficiency
- Tired of high utility bills? Replacing your old windows with our energy-efficient ones could lower your utility bills month after month. Our windows are made with top-quality insulated frames and seals, so you’ll get windows other companies can’t match. You’ll start saving money every month year-round.
- Expert Installation
- New windows are useless without proper installation. When you choose Window Nation, your new windows are expertly installed for a perfect fit and years of worry-free protection – and installed in 1 day. Our teams are local, so they understand what it takes to ensure your windows can handle the weather in your area.
- Styles and Colors
- Available styles and colors Whether you have standard-looking windows or a full-custom home, we can replace them. Each of our windows is expertly measured and custom-made for your home – even odd sizes. With over 1,500 styles and colors to choose, you’ll get the windows you want – even if you have an HOA or historic district.
- Lifetime Warranty
- Your current windows haven’t lasted – how can you be sure new ones will? At Window Nation, we stand behind our windows and doors with a lifetime warranty. That’s because we know we sell the best windows you can buy – and we’re confident they’ll perform and protect your home for decades.
Our Mission
Solve problems by installing solutions.
At Window Nation, we help homeowners reimagine their spaces with premium, energy-efficient windows built for beauty, comfort, and long-term performance. With over one million windows installed and more than 30 markets served nationwide, we’ve earned a reputation for expert craftsmanship and customer-first service. Our story began with a simple goal: to offer homeowners high-quality window solutions tailored to their unique needs. Today, that mission still drives us. We offer one of the largest selections of styles, colors, and materials, all customizable to fit your vision and your budget. Our Exterior Design Consultants work closely with every customer, ensuring a seamless experience from consultation to installation. Backed by industry-leading warranties and thousands of five-star reviews, Window Nation is proud to be a trusted partner for home improvement. We’re also committed to giving back, supporting the communities we serve through local partnerships and initiatives. Whether you’re upgrading for energy efficiency, curb appeal, or peace of mind, Window Nation delivers products you can trust and results you’ll love. Come discover why so many families continue to choose Window Nation, the company where quality, value, and service meet.
Contact info
945 Grand Blvd, 11729, Deer Park, NY, United States
- (516) 209-2790
Window Nation
3.7
Average
5 reviews
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Horrible horrible horrible
From the first day with the sales rep. Horrible Horrible Horrible. Misleading financial options. Broken promises just to get me to sign the contract. Horrible communication from him and installations. I was ready to walk away and take my business elsewhere until a rep from out of state called me and explained that the Long Island office was replaced with new people and assured me they would take care of my concerns(that was a lie) after I agreed I did not hear again from him. So now I have a very expensive defective provia door hanging on my house. It was not installed correctly. You can only lock it from the inside. The whole bottom of the house where the front door is exposed. The things I asked for from the rep for example. I would like to use the lock I have and have it installed when they hang the door, he said no problem, my storm door I asked if that be rehung he said no problem but all a lie. Now I have no storm door they took it away my locked can’t be used on the door,installed incorrectly, false financing. If all this is not rectified quickly I have no choice but to contact a lawyer ( I have many pictures) and the better business bureau. I also had second phase of my house to be done but I will take my business elsewhere.
14 August 2026
Unprompted review
Reply from Window Nation - Long Island
We are truly sorry to hear about the incredibly frustrating experience you've had with your recent door installation and the interactions with our team. We understand your profound disappointment regarding the misleading financial options, the unfulfilled promises from the sales representative, and the significant issues with the installation itself, including the defective door, the inability to lock it properly, and the exposure at the bottom of your house. We also recognize your concern about your storm door being removed and your original lock not being utilized as discussed. Your feedback highlights serious shortcomings in our service and communication, and we want to assure you that we are taking your concerns very seriously. We are committed to investigating these matters thoroughly to understand what went wrong and to prevent similar situations in the future.
The entire experience was amazing
The entire experience was amazing. They got everything installed in 1 day. They even came back to adjust my front door in a timely manner.
30 June 2026
Reply from Window Nation - Long Island
We're so happy to hear that our team provided such an amazing and efficient installation experience for you, even with the follow-up adjustment! Thank you for your kind words.
Seamless Experience!
Today’s experience with Peter Farrell was seamless! The presentation was extremely thorough and exceeded all of our expectations, making the process of choosing styles and enhancements for our windows go smoothly. We are extremely excited to have our windows installed by Window Nation!
3 July 2026
Unprompted review
Reply from Window Nation - Long Island
We are so pleased to hear that your experience was seamless and that our presentation exceeded your expectations! It's wonderful that the process of choosing your window styles and enhancements was smooth. We're excited for your upcoming installation!
5 STAR TEAM !
What a great team and the coordination on completing the job in one day was great. They added 10 windows with no problem and they were very professional. Cleaned up when they finished and left the house the way they found it except I now have new windows!
16 June 2026
Reply from Window Nation - Long Island
We're thrilled to hear about your excellent experience with our team and the efficient, professional installation of your 10 new windows! It's wonderful to know that everything was completed to your satisfaction, and we appreciate you highlighting our crew's care for your home.
Michael Yanaros was great
Michael Yanaros was great. He was professional and friendly without being condescending. Mike was well-informed and took time explaining terms and concepts. I didn't feel rushed or pressured to purchase the product and services. I feel confident Window Nation will see my project through to the end.
26 June 2026
Unprompted review
Reply from Window Nation - Long Island
We are delighted to hear about your positive experience with our team member. It's wonderful to know that you felt informed and comfortable throughout the process, without any pressure. We appreciate you sharing your confidence in us!
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