SolvedDuctless Mini-Split
Repair or replace a 10-year-old mini-split in Montreal?
Asked by Priya Mitchellin Montreal, Quebec· 3/26/2026· 420 views
I'm in Montreal, Quebec and dealing with a 10-year-old mini-split in our small commercial unit. Over the past few service calls, 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$1,202 for repair, while another jumped straight to a C$16,488 replacement because of the age. The weather here has been dealing us swing-season humidity, 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
7 Answers
34
✓ Accepted Answer
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.
25
0
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.
17
0
We used the directory reviews to filter out firms that were vague about what they had actually tested. That saved us a lot of time. 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.
Henry Murphy·3/26/2026
15
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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.
12
0
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.
11
0
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.
2
0
We used the directory reviews to filter out firms that were vague about what they had actually tested. That saved us a lot of time. 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.
Leo Miller·3/27/2026