seriously injured due to faulty workmanship

Dean Cornish installed a shower door without rubber stops in Jul 2013 at my newly built establishment in Muldersdrift. Installation also did not comply to regulations. I complained several times and one morning opened the door and the door shatterred against the metal stopper cutting me all over my body, seriously injuring me. I notified him, mailed and phoned him several times. He refuses blatantly to repair it to standard and used vulgar language to me and threatened me. I will have to use a lawyer and consult regarding Consumer Protection Act.