Alberta Furnace Cleaning

Booked an appointment for Alberta carpet Cleaning to clean our furnace as they do furnaces too. They were a bit late the first time, they rushed in and did the job, Right after they left you could smell dust which I thought would go away after running the furnace a few times. A week went by and still the smell of dust coming from the vents. We called them and they said they would send someone out, no problem, took another morning off of work and they did not show up, I called them to say,.. hey whats up, so they sent a guy with the truck to my place, he inspected it and said you are right you have dust blowing, then did not clean the furnace. It had to be booked, so I waited for a call to redo the furnace again they called and I asked for a morning appointment and as I did not want to take a whole day off of work again for the 3 time. Once again I had to call to see if they where going to make it before I was rolling into the second half of the day, they called the tech and he rushed over leaving some other Jobs close by that he was going to do, they rushed in here again and redid it. This time it was an improvement but the dust smell was still there in the days to follow. So I cancelled my custom made filter and decided I would right this review and never hire them again.