3 Best Window Companies in New Haven, CT

I had Renewal by Anderson come by for an estimate over a month ago. Cliff Pollack was absolutely amazing with the presentation. He didn't make me feel rushed. He showed me the windows they have to offer along with what the warranty covers. I had several windows I wanted to replace but could not afford all of them at once so I was able to do the kitchen window for now. He was really pleasant with my 3 year old daughter as well. He was very easy to talk to. Then, on 4/19/25, Marek, the installer, came to remove the old window and replace with their window. He laid down red padding on the floor so that it didn't leave a mess in my house, as I do not walk with shoes inside my house. He respected the boundary. He did the job flawlessly and cleaned up after himself! Not many installers clean up perfectly but he did! He was professional and even accommodated me on a Saturday morning. Definitely a great experience with them! If I came across some money, I would use them for the rest of the 6 windows I need replaced. I definitely recommend them.

Great experience with Renewal by Anderson and the installation team of Ivan and Kevin. They installed our new French door. The project went off without a hitch. The team took care to protect the work area, inside and out. They called when they were 30 minutes out, arriving within the pre established time window. Working efficiently the job was complete in a few hours. The area was left clean and operation of the door and locks were explained. Again, this was an excellent experience.

I cannot recommend Nikolay and his crew highly enough! From start to finish, their professionalism and expertise in door installation were absolutely top-notch. The attention to detail was remarkable, and they took the time to ensure everything was done perfectly, leaving no room for error. They worked efficiently and left the workspace spotless, which truly impressed me. The doors not only look stunning but function flawlessly as well. If you're looking for skilled professionals who deliver exceptional results, Nikolay and his team are the ones to call. Thank you for your outstanding service—I'm beyond thrilled with the results.

I recently heard about a promotion for Window Nation on the radio and decided to give them a call to see how it worked. I scheduled an appointment for 9am, and the representative from Window Nation, Brandon Downer, arrived at my house promptly. Brandon was extremely kind, respectful, and courteous throughout the entire process. He walked me through every intricate detail regarding the quality of the windows, the installation process, and more. The appointment took roughly two hours, as there were over 60 windows to measure and go through. I was prepared for the pricing to be out of our budget, but to my surprise, the cost came in at roughly half of what it would have been without the promotion. We were able to sign the paperwork right away, making the entire experience incredibly easy. Now I understand why Window Nation has so many outstanding reviews. I highly recommend anyone interested in replacing their windows to reach out and ask for Brandon Downer by name. Thank you, Brandon, for making this such a smooth and pleasant experience.

Brandon Downer came to the introduction appointment. He arrived on time, was completely knowledgeable with product information and answered all of our questions and concerns thoroughly. We are able to continue with Window Nation because of his willingness to fully explain all financing options and work with our payment ability. Very satisfying sales experience.

Brandon Downer did an excellent presentation of the windows the company has. Very professional and we are on board. Honest and sincere presentation, answered all our questions. We were very surprised and happy with our package.