Permits and Regulations for the Installation of a Heat Pump or Air Conditioning Unit in Rosemont–La Petite-Patrie
Understand the obligations before starting your work
At AirGreen , we know that installing a heat pump or air conditioning unit in Montreal, and particularly in the borough of Rosemont–La Petite-Patrie , must comply with specific rules established by the City.
Our goal is to help you understand these requirements so that your work is compliant, safe and sustainable , while preserving the peace and quiet of your neighborhood.
Required municipal permits
When a permit is required
According to the most recent municipal regulations of the City of Montreal (updated October 3, 2025) , a permit is required for any installation of:
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Permanent wall-mounted heat pump
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Fixed air conditioning unit
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Any mechanical equipment (electrical conduits, heating, ventilation, plumbing, gas or electricity meters) installed on a roof, wall or in a yard
This requirement aims to ensure compliance with the district's town planning regulations , particularly with regard to location, noise and visual impact.
Exceptions: removable devices
Removable air conditioning units (window or portable type) do not require a permit .
However, their installation on the facade is only authorized when it does not harm the aesthetics of the building or the safety of the public domain.
Installation and location rules
Authorized location
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It is strictly forbidden to install any device in the front yard of a building, including on a balcony overlooking this yard .
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Installation is permitted in other yards , provided that the device is placed at least 3 meters from the boundaries of the lot .
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For land located at the intersection of two streets , it is mandatory to consult the permit counter before work in order to obtain specific instructions.
Noise and neighborhood
The borough of Rosemont–La Petite-Patrie regulates the noise level of mechanical equipment in order to preserve the peace and quiet of the neighborhood .
The owner must sign a commitment form confirming that the installation complies with the acoustic standards provided for in the municipal by-law.
Depending on the nature of the project, additional measures may be required:
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Installation of an acoustic screen for rooftop equipment.
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Carrying out an acoustic study when the device exceeds:
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a volume of 2 m³ , or
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a height of 1.5 m ,
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and that it serves a residential building with more than 8 dwellings or a commercial, industrial or institutional establishment .
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Costs and pricing of permits
The cost of the permit varies depending on the type of building:
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$158 : residential building with fewer than 8 units
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$350 : building with 8 or more units or commercial/institutional establishment
These fees are set by the City of Montreal and may be adjusted periodically.
Payment is required at the time of application, along with the required documents.
Documents to provide for a permit application
Before submitting your application to the City of Montreal, make sure you have gathered the following documents:
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Proof of ownership (or power of attorney, if you are an agent).
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Up-to-date location certificate .
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Technical data sheet of the device or mechanical equipment.
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Complete installation plans (elevations, site plan).
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Letter of authorization from the condominium association (if applicable).
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Commitment form signed by the owner.
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Detail of the acoustic screen , if applicable.
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Acoustic study in accordance with Appendix B of the Regulation on permits and certificates (if applicable).
The Rosemont–La Petite-Patrie permit counter remains the main point of contact for verifying and submitting your file.
Concrete examples of application
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Case 1 — Single-family home : a wall-mounted heat pump installed in the backyard, more than 3 m from the fence, requires a permit.
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Case 2 — Condo with front balcony : prohibition on installing a permanent appliance on the balcony overlooking the street.
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Case 3 — Corner store : an acoustic study may be requested before obtaining the permit.
Common mistakes to avoid
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Installing a permanent device visible from the street without a permit .
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Ignore the minimum distance of 3 meters from the boundary of the field.
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Omitting the acoustic study , which may delay or invalidate the permit.
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Neglecting the approval of the condominium union .
At AirGreen, we encounter these situations often—and we help our clients prevent them from the planning stage.
Your Responsibility / Our Support
Your Responsibility
It is important to note that compliance with all applicable rules, permits and regulations remains the responsibility of each customer .
Although we at AirGreen are always available to provide guidance and advice, it is your responsibility to ensure that your project complies with local requirements and that the necessary permits have been obtained before work begins.
Unless otherwise stated in our contract, the responsibility for obtaining permits and ensuring the compliance of the installation lies with the customer.
Our Support
At AirGreen, we believe that a successful installation requires transparency and compliance .
Our team is here to guide you, inform you and support you in understanding the administrative procedures related to your HVAC project.
We help you identify applicable obligations and communicate effectively with municipal services when necessary.
If you have any questions, please don't hesitate to contact us —we're here to make your experience simple, clear, and compliant .
Next step!
At AirGreen, we support our customers at every stage of their efforts for compliant and sustainable HVAC installations .
Contact us today to discuss your project and get advice tailored to your situation.