According to your question the main door in West direction is good. If it is West South West than follow for this given below map :
Above marked space is most suitable for main entrance. This type of main entrance is beneficial for house owner. It makes the house owner Healthy, Wealthy and wisdom.
If main rood entrance is in West than it is not proper place. So the window should be open that place and two picture of lord Ganesh should be fix over of window.