For new construction, a builder's goal is to construct a home with a basement that will never leak. For existing homes, any of the three methods will guarantee a dry basement. However, there are other factors to consider. For instance, if you have beautiful landscaping, digging outside to install drain tile doesn't sound too appealing. Digging up the concrete floor to install interior drain tile loses its allure, too.
Price is also a consideration.
As we learned earlier, the cost varies widely between methods. So you see, many variables affect your decision. Regardless of what you decide to do to solve your water seepage problem, it pays to be informed. By understanding the nature of the problem and what can be done to remedy it, you can make a wise decision. Thanks your for asking.