Need to pay my deposit back

Be Adviced Don't Use This Man. I ask AGB builders and handyman service for work to be done at my house he gave me a quotation and I paid the deposit, he needed to replace a pre cast wall and some other work when asked when will he start to install the wall he came with a lot of excuses. He later told me that he used the money for private use. The all the work is left not completed. There is no reason to waist money to go the legal way they don't have the value to pay the outstanding money