Whether or not to waterproof your home after buying it depends on various factors such as the location, age of the home, condition of the foundation, and risk of water damage.

If your home is located in an area with a high risk of flooding or water damage, or if you have experienced water damage in the past, then it may be a good idea to waterproof your home as a preventive measure. Waterproofing can help protect your home against water damage, mould growth, and other moisture-related issues, which can save you money in the long run by avoiding costly repairs.

If your home is relatively new and the foundation is in good condition, then waterproofing may not be necessary, especially if you live in an area with low risk of water damage.

It's also important to consider the cost of waterproofing and whether it is worth protecting your investment. The cost of waterproofing can vary depending on the extent of the work that needs to be done, and it's important to get quotes from reputable contractors before making a decision. The most effective waterproofing method is drainage waterproofing, if done properly you can expect your home to keep dry for many years to come as your foundation grows stronger until it reaches its full structural integrity.

In summary, whether or not to waterproof your home after buying it depends on various factors, and it's best to assess the risks and costs before making a decision. It's also recommended to consult with a professional contractor or inspector to determine whether waterproofing is necessary and what options are available.