Heat pumps in Mercier–Hochelaga-Maisonneuve: permits and bylaws
Planning a heat pump or an air conditioner in Mercier–Hochelaga-Maisonneuve? 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 1 m from the side and rear lot lines.
At least 1 m from the side and rear lot lines. Screen or plantings to reduce its visibility from the street.
Allowed. Screen, plant panels or similar features to reduce its visibility from the street.
Allowed on a balcony or gallery, with a screen or plant panels that reduce its visibility from the street.
Not specified in the bylaw: confirm with urban planning.
Good to know, and who to call.
Good to know
- Heritage building or sector: an installation in the front yard or on a façade must be approved (PIIA).
- Corner lot: ask the borough.
The short answers.
Do you need a permit to install a heat pump in Mercier–Hochelaga-Maisonneuve?
No permit.
How far from the lot lines must the unit be?
1 m from the side and rear lot lines.
Can a heat pump go in the front yard?
Yes, with conditions. Allowed. Screen, plant panels or similar features to reduce its visibility from the street.
What is the noise limit?
55 dBA from 7 a.m. to 10 p.m., 50 dBA from 10 p.m. to 7 a.m., outside a neighbouring dwelling (noise bylaw).
Who should I call to confirm before the work?
311 (514 872-0311 from outside Montréal).
Read at the source.
Sources: Urban planning bylaw 01-275, s. 85, 330.1, 342 and 342.2; borough noise bylaw B-3, s. 8; City of Montréal, “Obtenir un permis pour installer une thermopompe ou un appareil de climatisation”, Mercier–Hochelaga-Maisonneuve section (consolidated May 2026 (bylaw 01-275); City page updated August 3, 2026).
Checked by AirGreen on September 30, 2026.
This page is a summary. The official bylaw prevails. Confirm with the borough before the work.
A heat pump project in Mercier–Hochelaga-Maisonneuve?
We come and see your property, and the estimate is free.