Windows and doors

Fabrication and Installation of Doors and Windows

Doco Enterprises is committed to producing superior-quality doors and windows under the Concerto banner. We have been listening to our clients and the market since 1996. We work tirelessly to ensure the comfort of our clients through the use of constantly improving products adapted to their specific needs.


Doco Enterprises can trace its roots back to 1957, when Armand Doucet founded St Jean Alumatic. His son, Jean-Guy Doucet, took over the company in 1972, and the Doucet family company became one of the trailblazers in the door and window industry in Québec. In 1996, Jean-Guy joined forces with his sons Pierre and François and his brother Yves, and founded Doco Enterprises.

The family company also relies on a number of seasoned employees for manufacturing its products in the tradition of excellence. The team works with state-of-the-art equipment, which gives them the flexibility to be able to process most orders within 15 business days.


In order to bring your new construction or renovation project to fruition, our team will guide you from the design of the plans to the installation on site by our team of installers.


We have been proving our ability to surpass your expectation in terms of quality and service for close to 60 years.

A Family History

Historical picture of the company

Doco Enterprises, a family company founded by the Doucet family, also relies on a number of seasoned employees for manufacturing its products in the tradition of excellence.


Our employees work with state-of-the-art equipment to produce an outstanding product line, which allows us to process most orders within 15 business days.


You will be satisfied with our professionalism in connection with your new construction or renovation project, and our team of installers can complete the installation for you.


We guarantee the quality of our products and our services.

Experience the DOCO difference!

Doco Since 1957
Copyright Entreprises Doco Inc 2017 - Legal
Created by

Legal notice