Known for their beauty, quality and energy-efficiency, Stanek Windows are among the highest rated windows in the industry. Exclusively manufactured and installed by Cleveland-based Great Day Improvements, Stanek Windows are custom-made specifically for your home so the options are endless. Select the style, size, color, shape, hardware options and glass packages right for your home and specific use. Whether you are replacing your existing windows or looking to add windows where none currently exist, Stanek Windows make an ideal choice!

At Great Day Improvements, our mission is to give our customers an exceptional window experience from start to finish. To provide exceptional quality and energy-efficient custom windows and doors. To provide professional, stress-free installation and to provide peace-of-mind protection for years to come.

Give us a call to start your window or door project today. We offer a free, no-obligation in-home estimate.

Services Provided
Great Day Improvements is the exclusive manufacturer and installer of:
•Stanek Windows and patio doors
•Patio Enclosures brand sunrooms, screen rooms/porches and solariums
•SoftWall Finishing Systems, an acoustically-efficient drywall alternative
We also specialize in the construction and installation of decks, awnings, patio covers, railing, entry and storm doors and more.

Areas Served
We serve eastern New York including: Buffalo, Niagara Falls, Lockport, North Tonawanda, Amherst, Cheektowaga, West Seneca and Jamestown.
Contact: Brian Hejmanowski
Location: 2620 North America Drive
West Seneca, NY 14224
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