Over the years, I've had the kitchen sink back up couple of times and used various drain cleaning liquids to clear up the drain. However, the problem kept recurring.
I then hired an electric Auger from Home depot and snaked the pipes in the basement. However, even though it seemed successful at first, the drain would back up every year. After three consecutive years of using the Auger, I finally wanted a permanent solution, that's when I called Tornado plumbing.
Sergey came in with a camera to diagnose the situation, however, due to the build-up and a potential kink in the pipes the camera couldn't travel far enough to diagnose the problem. We finally had to power flush the pipe before getting a better view of the situation. We then observed that the Y connector was leaning backwards, hence was building up on debris and grease. The solution was to excavate and replace the Y joint and install a backwater valve. This was done in a very professional and timely manner.