Get matched with top window repair pros in Sidney, NY

"John and Jason arrived on time and replaced a very large picture window and a smaller window. I am very happy with the windows . They look beautiful. John and Jason were very professional and did a wonderful job. Now I am kicking myself for not replacing a few more windows!"

"The installers did a very good job without any mess. One window had a crack and one bad screen. These were fixed no questions asked."

Since 1998, Adirondack Basement Systems has been the trusted local expert for basement waterproofing, foundation repair, crawl space repair, and concrete lifting throughout Upstate New York and Western Massachusetts. As a locally owned and operated company, we're proud to deliver permanent solutions backed by exceptional customer service and industry-leading products. In 2026, we were honored with the BBB Torch Award for Ethics, recognizing our commitment to integrity, professionalism, and putting our customers first. Contact us today for a free, no-obligation inspection and discover why thousands of homeowners trust Adirondack Basement Systems.

"Quick and professional. Fixed the issue same day I had the problem"

"I own an 90-year old historic colonial high school turned into a bed & breakfast. The windows were neglected over the past 20-30 years and in serious demand of work. Modern day window contractors were not going to understand this job. It's very difficult to find a contractor that will come through on a promise and has the skill to do as they boast. The day that Grady stepped into my 90 year-old home that needed historic window restoration, he became a part of the house. He knew exactly what had to be done. More importantly, he understood my expectations. These windows needed special attention. There was a level of detail required that not any expert would be able to handle. Grady took the time to learn their needs and stayed on the job until it was to my satisfaction. He even reworked an entire window just because I didn't like the way that it looked. Grady truly showed expertise with his ability to work on such a delicate job and even taught me a few things about historic window repair. He replaced broken antique glass with one just as aged and just as historic. If a window had to be completely rebuilt beyond his solid estimate, he did it without any complications to my budget. My windows are not only restored, but they are literally brought back from the past. Any enthusiast will appreciate the lint-seed oil, putty, and antique glass that was all restored to perfection. It was a pleasure having Grady work with us. He even stayed in the house at times to make sure he was available for the job. In fact, we're going to rename the room in which he stayed to "Grady's Den". Thank for bringing character and craftsmanship to my investment!"

To learn about Mad City Windows and its history, you need to start back in 1998 when our family-owned company first opened its doors and changed the face of home remodeling in Wisconsin. From the beginning, our business has been built on a foundation of friendship and trust and, in return, local homeowners have come to know they can place their trust in us. In order make certain that we consistently earn that trust, we are dedicated to ensuring the expert, seamless delivery of high-quality products and remodeling solutions to homeowners throughout our service area. \n \nToday, we expand our home remodeling expertise across Wisconsin, Minnesota, Iowa and Illinois. With over 50,000 completed projects, we take our 2+ decades of experience to serve the communities of Minnesota, Iowa and Illinois. They can expect our highest standard of service and professionalism.

"A new doorknob and lockset was ordered and was supposed to be included with the installation but after the door was installed it was discovered that no doorknob was with the new door. The installer had to go buy the doorknob and return to complete the installation which may have caused him to rush the job because the storm door was not replaced properly . I had to wait about almost a week for the installer to return and fix the problem. I then discovered that the entrance door was also sticking but I did not report this to the company because at this point I was just disgusted not only with the installation but also with the flimsy quality of the steel door which is a thin gauge of steel, very lightweight and very easily dented. This was one of Angie's Super deals that I had paid in advance for without ever checking the quality of the door first. I will never pay up front for any service again.

I have had the same company install all mu home's replacement windows about 7 years ago and I was so completely satisfied that I guess my expectations were too high for the same result with a replacement door.


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"needed help with network security cameras in my home.  Mr. Jim did not have experience with them but he was more than willing to try.  He was very responsive and determined to fix the problem.  He was not going to charge me if he couldn't help me.  He did exactly what he promised and completed this project with a great attitude!  I highly recommend him and will definitely utilize his help in the future."

"Everything was done and fixed accordingly. Repair guy was pleasant and listen well. Overall, good job."

"All repairs were performed as promised in a timely manner and according to schedule. I am very satisfied with the high quality of work performed by Jeorge and his reliable team of workers and all for a reasonable price.
Jeorge is a consummate professional and I would absolutely use his services again and I am pleased to provide this endorsement and recommendation without reservation. 

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