Get matched with top window pros in Berlin, NY

"Seth and his partner did a great job repairing my two bathroom windows that would not stay up . He ordered the parts and kept in contact with me . He arrived on time with parts and the job came out perfect . His price was very fair . I would highly recommend Seth for any repairs with windows. He has many years of experience in windows."

"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!"

"These guys are the best! We have been replacing the all the windows in our house, these were the last 5. We have a big house with 6 bay windows, and 15 regular. We had them replaced in sections had some from Sears, pure garbage, Home Deport, fair quality. I wish we would of did our whole house in these windows. These are beautiful, excellent quality with a great price. We were just interested in getting our patio replaced, an 8 footer. The salesperson told me about the windows they sell. We had budgeted $5000. for the patio door. The patio door was only $3300, I was quoted $2000, to replace just the glass from others and decided to go with new. I told him we have only 5 more windows to complete the house, He gave us $75. off each window. Sold! The guys came installed were neat professional, it was not like that with any of the others. i live in the boonies and it took them at least 50 minutes to get here. They did it all in less than 5 hours."

"We had our windows since spring. Everything went as planned and the windows are incredible. Highly reccomend"

Welcome to Hansen Maintenance, LLC, where quality repair services meet exceptional customer care. Let us take care of your repair needs with expertise and dedication.

"Excellent contractor! Very knowledgeable with simple and effective explanation. This service provider was able to successfully rebuild window trim, insulate/foam, and paint a great number of exterior windows efficiently. I definitely plan on hiring again. Great integrity and honesty with with a wide variety of skill. I've saved this company's contact information to hopefully help me do some insulation/sealing/weatherproofing in my basement."

"The installers were great. The salesperson made promises that he did not keep and he missed a window. When the person came to measure he also didn’t catch that I was having all my windows done except one. The windows look great. The response when I notified the co that one window was missed was very fast but added to my cost."

"Outstanding. Joe arrived in the morning and worked the entire day. He worked both inside and outside. He installed a heater fan in the bathroom ceiling, repaired two ceiling with water damage, installed a new storm door and repaired en exterior window frame that had multiple areas that were rotting. He is easy going and hard working. I will definitely be hiring him again."

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.

"Matt was great. He was efficient and did a great job on two very different projects. He called to tell me he’d be there later than he originally told me before the arrival window. Very clear on his estimates so nothing was a surprise. Thanks!"