Heat pumps in Mercier: permits and bylaws
Planning a heat pump or an air conditioner in Mercier? 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.
Ground-mounted: at least 3 m from the lot lines and no more than 1 m from the house. Wall-mounted on the building: allowed.
Ground-mounted: at least 3 m from the lot lines and no more than 1 m from the house. Wall-mounted on the building: allowed.
Ground-mounted: not allowed. Wall-mounted on the building: allowed.
Not specified in the bylaw: confirm with urban planning.
Not specified in the bylaw: confirm with urban planning.
Good to know, and who to call.
Good to know
- Corner lot: a ground-mounted unit is allowed in the secondary front yard, at the same distances (3 m from the lot lines, no more than 1 m from the house).
- Pool equipment (heat pump, filter): at least 1.5 m from the lot lines.
The short answers.
Do you need a permit to install a heat pump in Mercier?
Building permit required before installation.
How far from the lot lines must the unit be?
Ground-mounted: 3 m from the lot lines and no more than 1 m from the main building.
Can a heat pump go in the front yard?
Yes, with conditions. Ground-mounted: not allowed. Wall-mounted on the building: allowed.
What is the noise limit?
Nuisance bylaw 2019-972: no figure; not allowed if the noise disturbs the neighbours.
Who should I call to confirm before the work?
One-stop service desk (Guichet unique), 450 691-6090, option 1, guichet.unique@ville.mercier.qc.ca.
Read at the source.
Sources: Zoning bylaw 2022-1009, s. 6.2.1 and 6.2.2 (table, lines 28 and 29, replaced by 2025-1051); permits bylaw 2022-1013, s. 4.1.1 para. 4) and 4.4.1.2; nuisance bylaw 2019-972, s. 3.2.4.1 f) (zoning: administrative consolidation no. 7 and bylaw 2025-1051; permits: consolidated February 4, 2026).
Checked by AirGreen on September 30, 2026.
This page is a summary. The official bylaw prevails. Confirm with the city before the work.
A heat pump project in Mercier?
We come and see your property, and the estimate is free.