In fact, you should be between five and ten years old without worrying about replacing the waterproofing system or performing any kind of major without needing these repairs. Of course, it is important to always consider the exception to the rule: living in an area that is extremely rainy or prone to excessive flooding. Homeowners are often advised to postpone certain repairs until a certain time of year. For example, many are told that you can't or shouldn't do any kind of basement waterproofing during the winter months.
Why? It usually has to do with how the ground will freeze (in many areas) during that season. Technically, it might seem that basement waterproofing is impossible if the foundation cannot be excavated or accessed. If the foil test showed that water soaks into the basement walls and leaves them damp, seal the inside of the walls with a high-quality waterproof paint, such as DRYLOK White Extreme Waterproof (available from Home Depot). Exterior waterproofing involves digging around the house to the full depth of the foundation walls, then installing a waterproof layer or membrane covered by drainage panels.
Some large organizations that issue certifications and memberships are Basement Health Association (BHA), Waterproofing Contractors Association (WCA) and Sealant Waterproofing %26 Restoration Institute (SWRI). Take care to waterproof your new construction properly and, in older homes, make sure to keep the existing waterproofing method as much as possible to avoid long-term problems that you will have to cover out of pocket.