It’s always worth it to walk around the outside of the home and check for cracks or other damage, which could mean you’ll be dealing with costly structural issues in the future. Often, cracks can be caused by structural issues—including subsidence, poor design, seasonal decay, brown plaster and water damage—which can cost you thousands of dollars in repairs down the line. “Not every crack will be cause for concern, but normally the bigger they are, the bigger the issue,” explains Kyle Mattison, property expert and TikToker known as @thatpropertyguy, in a video. “If there are cracks, look out for uneven flooring…Hairline cracks in plaster can be common, and these might just be a simple fix with filler. But when it comes to cracks, it's important to always get a survey,” he adds.