Inside your home, clogged gutters can cause wall and ceiling damage due to leaks. If your basement is not waterproofed, water pouring down the foundation can lead to a damp basement. A damp basement is an excellent environment for growing mold and mildew. Clogged gutters can cause expensive damage, but the damage is relatively easy to prevent. Simply hire a gutter repair pro to perform routine gutter maintenance, fixing any issues as they arise.