I was complaining about flow issues and dust coming out of the vents on 3 different occasions. The owner came out twice and ensured me nothing was wrong with the ducts.
The third time they chose to answer through email stating " I know it has nothing to do with the air handler or the ductwork at the air handler. I went over all of it and it is very well sealed? It has to be coming in from windows or doors? It could possibly be from the attic? You may want to seal everything that penetrates the ceilings(lights/supply register cans/etc) and all exterior wall penetrations like outlets and switches."
I had to pay someone to inspect the air handler and ducts. Within 5 minutes of being in the attic they discovered the problems (see pictures).
Anyone who has had an A/C installed by KS Kooling within the last couple of years and you're experiencing problems, I suggest you have an independent company come out and inspect your system.
This cost me over $800 to repair because I could not trust KS Kooling to find or repair the issue.