Cracks in your home's foundation can be scary, but in certain cases, they're completely harmless and can be repaired with a few basic items.

Concrete filler is the easy DIY solution to repairing cracks in the surface. However, slacking on this critical step can cause the cracks to reappear.

Q. I have a blacktop crack that needs to be repaired. What is a good way to prevent water penetration? I've tried different sealers, but some have been messy. Is there an easy-to-apply product that ...