Don't forget the sump pumpMake sure the sump pump is operating correctly; install a battery back-up pump. Ron Gibbs, president of House Doctors Handyman Service (www.housedoctors.com), recommends putting in a battery backup pump because if your sump pump does go, "you wont know until it's too late." The backup, another pump that floats above the original pump, will kick on when the electricity goes out. If your sump pump fails, an alarm goes off, letting you know the backup is working. A few hundred dollars will save you thousands in water damage, especially if your basement is finished.