The Pros and Cons of Prefab Homes. If you can’t find a house you want to buy you may be tempted to build your home yourself. In that case, you’ll need to choose between a stick-built house and a prefab home. Stick-built means your home is built the old-fashioned way, with a crew of workers on site for months raising the home and fitting it with plumbing and electricity. A prefab home, on the other hand, comes in pre-built parts.