I would NOT recommend Amcor roofing - very poor quality all around - from workmanship to customer service. I paid Amcor 1/3 of the cost as down payment as they requested.
Amcor was supposed to replace the flat roof of a building between my house and garage ($3858.75 for a roof that is 4.89 m x 3.28 m). They started the job at the end of May and it is not finished yet (beginning of September).
The short story: The flat roof is bumpy and water is pooling (water is pooling where the membranes meet), so I requested that Amcor remediate the poor quality . Further, they removed the 2 bottom rows of shingles of the garage to run the membrane up the slope, but they did not secure the edges of the shingles and a few pieces are missing now - and the garage is leaking.
When I talked to them, Lyle one of the project managers, came over and said that they would fix it (that was in June), but there was no work done after. I followed up with 2 e-mails, but Amcor did not respond in any manner. Because there was no response or any action to work on the roof, I filed an complaint with the Better Business Bureau - and Amcor was supposed to respond to them Aug 28/11 - but has not. The BBB is following up by this coming week - but I have little faith that the issues will be resolved in a satisfactory manner.
I am very sorry I hired Amcor. Based on my experience, customer service does not exists and quality is poor. I give them a fat, ugly ZERO.