The installer were just awesome przmemek and yurii always kept our home clean and with very little clean up for us to do. The windows were installed correctly and foamed correctly and completely caul... See more
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We have been very pleased with everything: Sales Rep. lived up to every thing that he presented. Contact people for approvals of HOA and scheduling were courteous and helpful. Installers were v... See more
Company replied
The install left some cracks in my front window siding not filled with caulk. Pine trim was ours and it was reused as was parts of previous inside window framing in our basement window replacement tha... See more
Company replied
Alex and his two colleagues stayed focused during the entire installation. The basement windows were a bit tricky but the crew worked out a system that got the five basement windows installed properl... See more
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Company details
- #2 of 4 best companies in Window Installation Service
- #6 of 7 best companies in Construction Company
- #4 of 5 best companies in Door Supplier
- #2 of 2 best companies in PVC Windows Supplier
- #3 of 3 best companies in 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
1120 Windham Pkwy, 60446, Romeoville, IL, United States
- 815-407-7890
Window Nation
4.2
Great
268 reviews
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Windows were installed but the caulking…
Windows were installed but the caulking looks as if I did it myself and I’ve never caulked anything. The installer stated I had uneven brick and it was the best he could do but yet, prior to installation, this was never disclosed in anyway. Transparency was not practiced because had I known the finished product would look tacky and raggedy I would have passed. I’m still waiting for a call for someone to come back and fix but at this point, I’ve not been this unhappy and remorseful in years. And I had been so very excited for this project only to now feel bamboozled!
October 13, 2025
Reply from Window Nation - Chicago
We appreciate you bringing this to our attention. We're sorry the caulking wasn't up to expectations and the uneven brick wasn't discussed beforehand. We want you to be happy with the result. We'll look into this and be in touch soon to find a resolution.
It took four times to install the…
It took four times to install the window correct. 3 times they had to removed, and reordered. In between all those installs we had at least 10 service calls and all they did was band aid bad indtalls. This time they had to remove wood from all 11 windows reinstall and insulate. This crew was good. But the other experiences were sooo bad I can’t write a good review. A lot of missed work for all this headache.
October 20, 2025
Reply from Window Nation - Chicago
We appreciate you sharing your experience. We're sorry the initial installations and service calls caused so much trouble and disruption. We'll review your feedback to improve our installation process. Thanks for your patience.
The crew did a great job
The crew did a great job. Did it quickly did it correctly? It was neat turned out looking very well. Happy with the window very well made looks good.
October 15, 2025
Reply from Window Nation - Chicago
We're happy to hear that the crew's work met your expectations! It's great to know the window's quality and appearance pleased you. Thank you for your positive feedback!
The crew was very professional with the…
The crew was very professional with the installation and considerate of our environment
October 16, 2025
Reply from Window Nation - Chicago
We're happy to hear that the installation was professional and that our crew was considerate of your environment. Thank you for your feedback!
The installers were knowledgeable and…
The installers were knowledgeable and did a walk through of the installation showing the usage of each window.
October 16, 2025
Reply from Window Nation - Chicago
We're happy to hear the installers were knowledgeable and showed you how to use each window. We appreciate your positive feedback about the installation.
Excellent job & work.
The men who put my windows in were professional & did a great job. The thing I was impressed with was how neat things were. The windows look great.
October 16, 2025
Reply from Window Nation - Chicago
We're happy to hear that the installation team was professional and efficient. It's great to know you were impressed with their neatness and that you love the new windows!
Completely unhappy!
When the window in our spare bedroom was measured it was in correct by over 6 inches too short. This was found after the crew had taken out our window. So they put our original window back in with tape. A replacement was ordered for the correct size but when it was unboxed after almost 8 weeks of waiting it was found to have a defect so a replacement was ordered. It finally arrived almost 8 weeks later but it was sent with the original incorrect size of over 6 inches too narrow. So we are again waiting for a replacement window. The technician was also supposed to replace a screen that had a tear so I could use without bugs entering home on this visit. He decided to wait until next time. By then I won’t want my window open because there will be snow!
October 16, 2025
Reply from Window Nation - Chicago
We regret to hear about the multiple issues with your spare bedroom window, from the incorrect measurements to the defective and wrongly sized replacements. We're also sorry the screen replacement was delayed. We appreciate your feedback and will review our processes to prevent similar issues in the future.
The new window looks good from the outside.
The casement window I ordered was delivered on time. It was installed quickly. It is too soon to tell how well it will perform.
The inside of ther window was not trimmed out. The foam isulation that was applied had to be cut to meet the plane of the wall. I had to modify the old moldings to make them fit, because the new window was slightly smaller than the old window it was replacing.
October 16, 2025
Reply from Window Nation - Chicago
We appreciate you taking the time to share your experience. We're glad the casement window was delivered and installed promptly. We apologize that the trimming and molding required adjustments; we will use this feedback to better our teams and practices moving forward.
Through the Looking Glass
The installers were efficient and detailed. Everything went smooth and the windows and door are great.
October 13, 2025
Reply from Window Nation - Chicago
We're happy to hear that the installation process was efficient and detailed, and that you are enjoying the new windows and door. Thank you for your feedback.
Windows look great and all work was…
Windows look great and all work was done by high quality professionals.
October 13, 2025
Reply from Window Nation - Chicago
We're happy to hear that you find the windows aesthetically pleasing and that the work was completed by skilled professionals. Thank you!
My windows came in quickly
My windows came in quickly. The install was seamless. The crew was very respectful and informative. They cleaned everything up and most importantly made the windows look amazing!
October 15, 2025
Reply from Window Nation - Chicago
We're happy the windows arrived quickly and the installation was seamless. It's great to know the crew was respectful, informative, and thorough with the cleanup. Thanks for the positive feedback!
Job well done
October 10, 2025
Reply from Window Nation - Chicago
Thank you for taking the time to let us know how we did. If you have any further questions, please give us a call. We're always happy to help!
Work was done efficiently and cleanly
Work was done efficiently and cleanly. Workers explained everything asked of them. Very happy with work done.
October 10, 2025
Reply from Window Nation - Chicago
We're happy to hear that the work was done efficiently and cleanly. We appreciate you mentioning that our workers were informative. Thank you!
On time
On time, crew was responsive to questions, and crew chief made sure all was in order.
One mfg. defect that was called in.
October 9, 2025
Reply from Window Nation - Chicago
We appreciate your feedback and are glad the crew was helpful. We're sorry to hear about the manufacturing defect and have taken note of it.
The installers were professional.
The installers were professional, timely, pleasant, friendly and respectful of me and my property.
October 9, 2025
Reply from Window Nation - Chicago
We're happy to hear that our installers were professional, timely, pleasant, friendly, and respectful of you and your property. We appreciate your feedback!
Reply from Window Nation - Chicago
We're happy to hear that your window installation was completed quickly! Thank you for sharing your positive experience with us.
Reply from Window Nation - Chicago
We're happy to hear that our service was prompt and efficient. Thank you for your positive feedback; we appreciate it!
Positive Experience!We have been very pleased with…
We have been very pleased with everything:
Sales Rep. lived up to every thing that he presented.
Contact people for approvals of HOA and scheduling were courteous and helpful.
Installers were very professional!
Your company deserves an A ++.
Thanks for making this a positive experience!
Jim & Gail McKevitt
October 7, 2025
Reply from Window Nation - Chicago
We're happy to hear that you were pleased with our sales representative, contact people, and installers. We appreciate your high rating and are glad you had a positive experience. Thanks for your feedback!
Tech was prompt and extremely nice
Tech was prompt and extremely nice. Replaced defective portion of two windows in about two minutes.
September 30, 2025
Reply from Window Nation - Chicago
We're happy to hear that our technician was prompt, nice, and efficient in resolving the window issues. Thank you for your positive feedback!
Reply from Window Nation - Chicago
We appreciate you sharing your wonderful experience with our service and installation. It means a lot to us that you were so satisfied.
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