SolvedDuctless Mini-Split
Anyone dealt with a mini-split cooling one room well but leaving the others behind in Montreal?
Asked by Grace Fosterin Montreal, Quebec· 4/12/2026· 961 views
I'm in Montreal, Quebec and dealing with a 14-year-old mini-split in our semi-detached home. Over the past few service calls, it has been cooling one room well but leaving the others behind and we're now noticing we are trying to decide this week and i do not want to sign off blindly.
One contractor quoted C$1,292 for repair, while another jumped straight to a C$7,422 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
10 Answers
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✓ Accepted Answer
From a contractor side, I would not approve a major repair or replacement without test results that line up with the symptoms. 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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Before signing anything, I would ask the technician to show the readings and explain which number actually supports the recommendation. 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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The price range alone does not tell you enough. Ask what was tested, what failed, and which assumptions are built into the quote. 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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What helped us most was breaking the quote into labour, parts, warranty, and optional upgrades. The expensive bid looked very different once it was itemized. 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·4/12/2026
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We had something similar and the turning point was asking each company for the actual readings in writing instead of a verbal explanation. 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.
Aria Parker·4/13/2026
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I would compare how clearly each contractor explains the diagnosis, not just the price. The clearer company ended up being the better hire for us. 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.
Liam Russell·4/12/2026
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What helped us most was breaking the quote into labour, parts, warranty, and optional upgrades. The expensive bid looked very different once it was itemized. 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.
Nadia Diaz·4/13/2026
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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.
Sophia Price·4/12/2026
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What helped us most was breaking the quote into labour, parts, warranty, and optional upgrades. The expensive bid looked very different once it was itemized. 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.
Ruby Nguyen·4/12/2026