GD Master Plumbing were engaged for a quote to unblock a storm water drain. They get a half star because they graciously moved the appointment time forward by an hour or so! From that point on disaster...was verbally quoted $695 per hour to investigate the blockage, they worked for 2 hours so would have expected to pay $1,390 but no, was invoiced for $2,750 and I still have a blocked drain! They would not send an invoice for payment, their rep insisted on credit card or direct debit before they would leave. Sought reimbursement for what I consider as over payment from the management however can't write what he actually said to me (censored) let's just say no was the response. This company, in my opinion, has unreasonable charges and uses unfair tactics to get payment. The only genuine guy was Graham who had the camera and jet equipment - but I think he is a sub contractor not an employee. I can understand why others have the same complaints, I just wish I had checked out online reviews before even calling them! Avoid this company if you can. This is my first ever review comment about any trade I have ever used before.