Styles and Options

Casement
& Awning Windows

Best suited for older homes with 2x4 construction. Our Core Series is built to fit thinner 3 ¼" wall construction.

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Single Slider
& Single Hung Windows

Renovation and construction projects with 2x6 walls. Because the frame of the window is 4 9/16" the sash sits closer to the inside of the home providing a better insulating factor.

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Double Slider
& Double Hung Windows

If you like the look of real stained wood in your home, these windows and real wood frames are ideal for homes, cottages libraries, offices and kitchens.

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Windows

Testimonials

Your windows and doors came very highly recommended. My new house looks spectacular. I am glad I listened to the recommendations given to me.

Frank Chanady

To Dundas Wood Windows: Nelson, just wanted to write a quick thank you note to you and your team for the fine job you did with our new Ostaco ...

Robert (Rob) Ribarich

We are very pleased we selected Ostaco windows and doors. The installation was flawless and the results spectacular. The new windows enhanced our ...

Trish and Ronald Walker

We are very delighted and pleased with your excellent job and most impressed with the polite and professional staff...

E. Byers, Smiths Falls, ON

It was most appreciated and we are pleased to see such good service at Lambden

J. and B. Madden, Ottawa, ON

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