Duct Cleaning
What would you ask before approving duct cleaning work in Glasgow?
Asked by Benjamin Diazin Glasgow, Scotland· 4/21/2026· 2363 views
I'm in Glasgow, Scotland and dealing with a 8-year-old duct system in our semi-detached home. Over the past week, it has been pushing weak airflow to the upstairs rooms and we're now noticing the upstairs stays noticeably worse than the main floor.
One contractor quoted GBP 774 for repair, while another jumped straight to a GBP 14,227 replacement because of the age. The weather here has been dealing us cold overnight temperatures, 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 duct leakage, balancing, blower performance, and filter pressure drop.
ductsairflowcomfort
6 Answers
23
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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 duct system that is pushing weak airflow to the upstairs rooms, the first things I would ask for are duct leakage, balancing, blower performance, and filter pressure drop. 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 Glasgow, Scotland, pricing can move around, but the diagnostic process should still be clear.
18
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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 duct system in Glasgow. Once we forced every quote into the same format, the decision got much easier because the weak recommendations stood out immediately.
Monica Hughes·4/21/2026
13
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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 duct system in Glasgow. Once we forced every quote into the same format, the decision got much easier because the weak recommendations stood out immediately.
Claire Kelly·4/21/2026
7
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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 duct system that is pushing weak airflow to the upstairs rooms, the first things I would ask for are duct leakage, balancing, blower performance, and filter pressure drop. 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 Glasgow, Scotland, pricing can move around, but the diagnostic process should still be clear.
6
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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 duct system that is pushing weak airflow to the upstairs rooms, the first things I would ask for are duct leakage, balancing, blower performance, and filter pressure drop. 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 Glasgow, Scotland, pricing can move around, but the diagnostic process should still be clear.
3
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 duct system in Glasgow. Once we forced every quote into the same format, the decision got much easier because the weak recommendations stood out immediately.
Ella Thompson·4/21/2026