Heat pumps in Saint-Mathieu: permits and bylaws
Planning a heat pump or an air conditioner in Saint-Mathieu? Here is what the bylaws say: the permit, the distance from the lot lines, where the unit can go and the noise limit. It all comes from the official texts.
Five spots, one answer for each.
Each answer is the bylaw rule, in short. “Not specified” means the text does not say: ask urban planning.
At least 2 m from the lot lines. Hidden from the street by an opaque fence or dense hedge if needed.
At least 2 m from the lot lines. Hidden from the street by an opaque fence or dense hedge if needed.
Not allowed in the front yard or the secondary front yard.
Multi-unit buildings: one unit per dwelling, no more than 0.5 m from the wall and at least 2 m from a neighbour’s window or balcony.
Residential: not allowed on the roof (allowed only for non-residential uses).
Good to know, and who to call.
Good to know
- Maximum unit height: 2 m.
- Corner lot: at least 3 m from the secondary front lot line.
- Pool heat pump: more than 1 m from the pool wall and more than 1.5 m from a lot line.
The short answers.
Do you need a permit to install a heat pump in Saint-Mathieu?
No permit or certificate required.
How far from the lot lines must the unit be?
2 m from the side and rear lot lines, 3 m from the secondary front lot line.
Can a heat pump go in the front yard?
No. Not allowed in the front yard or the secondary front yard.
What is the noise limit?
Over 55 dB by day or 50 dB at night at the lot lines: deemed excessive noise.
Who should I call to confirm before the work?
Urban planning department, urbanisme@saint-mathieu.com; town hall, 450 632-9528 ext. 0.
Read at the source.
Sources: Zoning bylaw 315-2024, s. 8.22; permits and certificates bylaw 318-2024, s. 2.13 (table 2.1); nuisance bylaw 275-2026, s. 5.5 (zoning and permits: December 2024 version (zoning in force February 28, 2025); nuisances: in force July 14, 2026).
Checked by AirGreen on September 30, 2026.
This page is a summary. The official bylaw prevails. Confirm with the city before the work.
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