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Casement & Awning Window Comparison

A clean, uncluttered look, with built-in details make our casement and awning windows Toronto superior in every way. We utilize the latest technology to provide you with a complete line of fully accessoriized casement windows (Toronto) that can be easily customized to your exact needs. With our energy saving design and quality appearance, Ostaco windows Toronto are made to last.

Core Series

This is perfect for older households with 2x4 construction, as our Core Series is designed to fit thinner 3 1/4" wall construction.

Core PLUS

This is ideal for renovation and construction projects with 2x6 construction since the frame of the window is 4 9/16" and the sash is set back from the exterior of the frame offering a better insulating element.

Core WOOD

If you prefer the look and feel of genuine stained wood in your house, these windows with real wood cladding and extensions are suitable for all homes, cottages, libraries, offices and kitchens.

Windows

Testimonials

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

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

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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Contact info

5990 14th Avenue

Markham, Ontario, Canada

L3S 4M4

Tel: [905] 201-7885

Toll Free: [888] OSTACO-1

Fax: [905] 201-7883