LEXINGTON, Ky. (WKYT) - Lexington Police have an alert about home improvement scams. Police say they've been receiving many complaints about these scams. Many of them involve unsolicited contractors who show up at your home, claiming it needs repairs. Police say you should never agree to have work done on the spot. They also suggest getting at least two written estimates from different contractors. They say you should never pay with cash and don't make a final payment until the job is finished.