New answers tagged chemicals
Duct cleaning is IMHO a scam as mentioned in other answers, but sealing the ductwork is absolutely beneficial in terms of efficency. Air leaks are one of the leading causes of lost efficiency.
It depends (but likely no). IMO, duct cleaning does have it's place in today's world (pet hair/allergen reduction for example). However, it likely only needs done once every 10-15 years in most cases. Duct sealer is basically like the sealant you can put in a bicycle tube to fix a leak except that since ducts aren't a completely closed system like a tube, ...
no - you are being offered a great big glass of snake oil duct cleaning is already a huge scam. EPA and health canada have already for years been warning people about the risks. this is just a new twist on an already deceptive industry
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