It is said that KFC doesn't do house delivery. But if you want for a Kentucky Fried Chicken Malaysia Delivery you can call out for Room Service at 03-6201 2400. You will be charged between RM 50 - RM 60 for per delivery. This doesn't include the meals price. Usually the meal price would be 30% - 40% more than the original price. And it takes about 60 minutes - 90 minutes for them to deliver your food. I do not know if this source is true.
KFC and Pizza Hut is said to be from the same boat. But Pizza Hut do have food delivery services.