Bad back services

KP engineering Chatsworth - Keegan Pillay , is the worst company to engage to do work. They taken on jobs with no experience and don't supply back up service. We had Keegan install an air conditioning unit less then 6 months ago and the unit is faulty. The brand is Alaska. Keegan refuses to take responsiblity for his work and is avoiding myself and my wife. Keegan Pillay 066-215-022-3