Roofing repairs can be expensive, but they're also necessary if you want your home to last. Roof leaks can cause significant damage to your home, including mold growth and structural issues like sagging floors and walls. If left unchecked for too long, roof leaks can lead to major structural problems within your house. Roof repairs will cost you more money in the long run if they're not done right away, and it is always best to immediately contact a roofing contractor if you notice any roof damage.