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You have grease on your kitchen cabinets or walls.

Be wary of houses with a single freshly-painted room or wall. “A new paint job in a single room or wall could be a sign that something is amiss underneath, so ask the selling agent,” says Dan Meyer, co-founder and CEO of Pocketdoor, a company that provides consumers information on renovations and other home projects. “There may be a good reason for the fresh paint, but now is your chance to ask.”

33 Surprising Signs There’s Something Wrong With Your House

Before that minor issue turns your house into a major money pit, make sure you know these signs that you have home problems coming.