Windows and doors

Required documents for review:

  • A letter describing the scope of the proposed work;
  • A letter from the building owner authorizing the permit application, if the request is made by a third party;
  • A letter from the association of co-owners authorizing the proposed modification;
  • A work order from the selected windows and doors manufacturer, including an illustrated technical data sheet showing the considered model(s), including a coordinated numbering listed in a table and coordinated on photos and with the proposed elevations;
  • Clear and colour photographs of all the façades of the building, identifying the windows and doors to be replaced, showing their condition from a closer look, including a coordinated numbering on the work order of the manufacturer;
  • An official cost estimate, excluding taxes, provided by a contractor or a professional may be required.

Should the design of the proposed doors and windows be modified from the existing, the following items are also required:

  • Shop drawings from the manufacturer, showing the windows and/or doors profile;
  • Dimensioned and scaled elevations of each façade being touched: existing and proposed or modified.

If the window opening is widened, the following item is also required:

  • A dimensioned lintel detail, stamped and signed by a structural engineer.

If the opening is modified, the following item is also required:

  • A clear and colour photo showing the proposed brick/stone sample matching the existing brick/stone.

 This list is a summary. Please note that additional documents or information may be required in order to provide a better understanding of the project and contribute to the request process. (By-Law #1300, article 65, point 14o)


Once you have gathered all the information you can open your file at the Urban Planning Counter in City Hall or open an online application.

  • The fee for the document analysis is 55$; the cost of the permit is separate.
  • The cost of the permit is calculated from the cost of work.
  • All files will be consulted by the Urban Planning Department before they are referred to the Planning Advisory Committee and City Council.
  • The applicant will receive a follow-up via email.
  • Your permit will be issued at City hall or sent by email.

Information you need to bring:

  • A detailed construction cost, excluding taxes as provided by the general contractor or a project manager (tariffs By-law).
  • All other documentation requested that needs to be deposited prior to the issuance of a permit (ex. RBQ form, a site management document, asbestos report, sidewalk deposit, …).

Applies to all exterior changes to a building or property.

Need help with applying for a permit online? Here is a step-by-step guide