I have recently had 2 new composite doors installed and both are letting lots of water into the frame and depending on levels of rain its then coming into the house. The frame has 2 drains installed to allow the water to flow out. I have contacted the installer as I don't think that much water should be entering the frame. I understand the seal can not be water tight but each time it rains the water end up in the door frame and it doesn't all flow out. The supplier/fitter is adamant that how they are designed but im not convinced. Any help would be appreciated. I am waiting for him to come out with the supplier but from conversations he doesn't think there is anything wrong.