Max in Prince George

The eavestrough on my 28x30 garage was leaking at the seams so I had Gutterworks install seamless eavestrough to fix the leaks. When they were done one end of one side extended 1 1/2" below the facia. When I asked I was told my foundation was sinking and he had to have it so low to get the proper slope. I checked and foundation is fine - he gave me 5x the required slope - 3 1/2" over 30', not 3/4" as it should have been. Other side appears much better but the water pools when it rains. Worst of all the eavestrough now leaks full length both sides and the drip edge is damaged from the removal of the original eavestrough. I phoned twice to get someone to come over, they said they would, but never did. Abysmal workmanship and service to match.