The Ticats (6-2) moved into sole possession of first place in the CFL's East Division with the win.
The Eskimos (5-3) have lost two of their last three and saw a seven-game winning streak at home dating back to last season ended.
Edmonton had a rough start as quarterback Matt Nichols was picked off by Tiger-Cats defender Mike Daly on the opening drive and he took the ball back 51 yards. The interception led to a 22-yard touchdown pass from Zach Collaros to Sinkfield.
The Eskimos came right back with a 43-yard Grant Shaw field goal to make it 7-3.
Edmonton turned the ball over again late in the first half as Shakir Bell fumbled on his own 30, leading to another 10-yard TD pass to Sinkfield.
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