Looking for the best residential electrician in Christchurch? R Grant Electrical specializes in providing top-quality electrical services for new homes and renovations.Looking for the best residential electrician in Christchurch? R Grant Electrical specializes in providing top-quality electrical services for new homes and renovations. Looking for the best residential electrician in Christchurch? R Grant Electrical specializes in providing top-quality electrical services for new homes and renovations.