We look at windows in a different way and we understand that every customer is looking to realize a different and unique possibility. That’s why every Koltech window is custom crafted to meet your unique needs and add beauty, comfort and security to your home.

Each Kohltech series of windows features outstanding craftsmanship, energy efficiency, innovation and value. We believe in offering more choice of window styles, glass, hardware and colors because choice means more freedom for you to realize your own unique possibilities.

Tilt & Turn

Our innovative tilt & turn windows offer unmatched versatility.

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Opens out and hinged on the side.Our best performing windows against snow, wind and rain.

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An outstanding choice when air circulation and ease of use are paramount.

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Single Hung

Our single hung windows are easy-to-clean and take up no additional space when open.

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Double Hung

Choose our double hung windows when ease of cleaning and air flow are your top priorities.

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Single & Double Glider

Our glider windows are easy-to-use and easy-to-clean.

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