Williams technical director Mike Coughlan believes the team is heading in the right direction with the development of its car after a poor start to the 2013 season.
Pastor Maldonado was taken out of the Monaco Grand Prix in a collision with Max Chilton while Valtteri Bottas finished out of the points.
“We had a difficult weekend in Monaco, but we did find a good direction for development which we will be carrying through to Canada with a number of new parts,” said Coughlan.
“There is still a lot of work to do, but we are confident that everyone in the team is pushing hard to get us back to where we need to be.”
Williams are yet to score a point so far this season. By this stage in last year’s championship they had amassed 44 points including a victory in the Spanish Grand Prix.
Rookie driver Bottas will be racing on the Circuit Gilles Villeneuve for the first time this weekend.
“It’s similar to the last race in Monaco in some respects, being a street circuit with a number of the corners and straights very close to the walls,” said Bottas.
“The challenge is therefore to quickly find the cars limit and use as much of the circuit as you can, without taking too many risks.”
“As this is my first time driving the track, Friday morning is going to be important to get the right car setup,” he added.
“There are long straights on this circuit so good traction is needed out of the slow speed chicanes, and you also need really good straight line speed, especially in the race. If you have better straight line speed than your competitors, the racing will be much easier for you to defend and overtake so we need to find a good compromise between downforce and drag.”