Not every crack is a problem beyond an eyesore. In fact, as a home ages, it’s a given that cracks will form in overused areas, like around doors and windows. Temperature fluctuations can cause building materials to expand and contract—and crack.
But a crack could be the only visible symptom of a hidden and potentially serious problem with your home—one that will be harder to fix and more expensive to deal with later if you don’t figure out what’s causing that crack now.
A tip: Arm yourself with a magnifying glass and a pencil and inspect your home, inside and out, for cracks. Use the magnifying glass to find the tiniest cracks in paint and stucco; stick the pencil in the crack to gauge how big it is. If it’s just big enough to let the point of the pencil through, you probably don’t have to worry about it. But if the eraser end fits into the crack, it’s time to do some serious repair work.