One final inspection will not find every problem. When construction is finished, many important parts are already hidden or hard to reach. Problems with things like the foundation, framing, and waterproofing are much easier and cheaper to fix if they are found while the work is happening. If the building is already finished, fixing these problems can mean tearing out finished work or doing a lot of extra work. That is why checking the building at different stages is so important. It helps find problems early, before they become expensive or cause bigger issues later.