Efficiency brings us together



We are a breath of fresh air in a complex industry.



We add references and human support to your experience.



We have been creating doors and windows for over 70 years.



We believe that good design is an opportunity to really improve our customers’ everyday lives.

Emilie Cerretti porte parole d'ATIS

Emilie Cerretti, ATIS spokesperson

Interior designer and super creative stylist, Emilie Cerretti tackles all decoration challenges with skill. Very present in the media and on social networks for almost 15 years, we can see it in several of our favorite shows.

10% Off Select Window Collections

Get 10% off ATIS 300, ATIS 500 and ATIS Architectural window collections. Offer valid until September 26, 2020. Certain conditions apply. Ask your ATIS expert advisor for details.

Discover our products

ATIS manufactures a full range of windows, doors and related products that are available in a wide variety of styles, materials and colours.

Fenêtre à guillotine

Our Windows

To each house its own windows.

Discover our models.

Our Doors

We have a wide selection of options.

Discover them all.

Our Patio Doors

Energy efficient and durable patio doors.

Discover our models.


Well Made Here

ATIS is proud to be a member of the Well Made Here program, promoting construction and renovation products made in Canada.

ATIS Newsletter

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*** 10% Off Windows ***

Until September 26, 2020, get 10% off ATIS 300, ATIS 500 and ATIS Architectural window collections.