Get matched with top window pros in North Tonawanda, NY

"We had an excellent experience with Wonder Windows. The young man who replaced 28 windows in our double house (Brian) was punctual, efficient, friendly and polite. We were amazed at how quickly his excellent work was done."

"I am extremely impressed with the quality of the windows and how knowledgeable our salesman Joe was. I previously had such drafty old windows, my only regret is that I didn't do this sooner!"

"The 2 young men were professional. They were very good. And they cleaned sll the areas. They were here 6 hrs.every window looks great and well built. We noticed the next day it was alot warmer in the house. The windows are well built. They care about there product. It's family owned. Very happy we went with them Thankyou"

"Fast and great service and work"

"Professional, attentive, thorough and friendly from start to finish. Installation crew was absolutely amazing! I had all windows in house replaced and it was was done much faster than I imagined. The crew was friendly, knowledgeable, efficient, and cleaned up everything each day. I love the new windows! Highly recommend!"

"Hired Vin to install a sliding door to replace a window in my office. He and his crew did an excellent job and went above and beyond to make sure everything went perfectly. I canâ t wait to see what they do on my next project of adding a deck in the backyard. I highly recommend."

"We hired Nexgen to install sliding glass door off kitchen and new kitchen window. Mark definitely cares about his customers being happy with their purchase, the installers he uses were awesome as well and did great job, very neat, very nice. We recommend his company for your windows and doors."

"He also repaired garage steps and installed new door in a bedroom. Excellent work, very thorough and reasonable rates."

"Excellent service, quality materials, professional, fast, clean. The best choice of 3 options. Very satisfied with the entire experience of full tear off of cedar plus two layers of asphalt shingles and replacement of 3 skylight windows."

"This company is amazing. Steve made the process so smooth, and I had no worries at all. The crew who installed the windows are incredible. Very professional and friendly, and know what they are doing. They replaced 3 picture windows that were over 30 years old, and of course they ran into a few problems. They did not miss a beat, they knew what needed to be done, and with no effort they had the problems fixed. I would highly recommended this company for anyone s future needs, you will not be disappointed. Thank you so much to all of you, it was a great experience any my windows look WONDERFUL!!!!"