Ductless Mini-Split
What would you ask before approving ductless mini-split work in Montreal?
Asked by Grace Fosterin Montreal, Quebec· 4/11/2026· 2078 views
I'm in Montreal, Quebec and dealing with a 18-year-old mini-split in our townhouse. Over the past week, it has been cooling one room well but leaving the others behind and we're now noticing the technician who came out last time did not leave any actual readings behind.
One contractor quoted C$1,704 for repair, while another jumped straight to a C$6,826 replacement because of the age. The weather here has been dealing us cold snaps followed by mild afternoons, so I do not want to wait too long, but I also do not want to approve the wrong scope.
If you were comparing bids on this, what would you want checked first? I especially want to know how much weight you would give to indoor head placement, line-set performance, fan speed, and zoning settings.
mini-splitairflowinstall
3 Answers
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The recommendation should be tied to measurements, not just the age of the equipment. Age matters, but it is not a diagnosis on its own. For a mini-split that is cooling one room well but leaving the others behind, the first things I would ask for are indoor head placement, line-set performance, fan speed, and zoning settings. If the contractor is recommending bigger work, ask them to explain which measurement supports that recommendation and whether they ruled out airflow or controls first. In Montreal, Quebec, pricing can move around, but the diagnostic process should still be clear.
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If this landed on my schedule, I would want to document the core readings first and then explain exactly why the repair does or does not make economic sense. For a mini-split that is cooling one room well but leaving the others behind, the first things I would ask for are indoor head placement, line-set performance, fan speed, and zoning settings. If the contractor is recommending bigger work, ask them to explain which measurement supports that recommendation and whether they ruled out airflow or controls first. In Montreal, Quebec, pricing can move around, but the diagnostic process should still be clear.
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If you can, ask whether they checked airflow before recommending equipment. We nearly replaced a system when the bigger issue was elsewhere. We had a related issue with our mini-split in Montreal. Once we forced every quote into the same format, the decision got much easier because the weak recommendations stood out immediately.
Claire Walker·4/11/2026