Repair Shop for Singer Sewing Machine in Toronto?

I got an old Singer 630 and since the bobbin was not moving I opened it for underneath. I discovered that 2 gears are destroyed. I tried and got one out, but the left horizontal one (as you look the machine from underneath) I cannot take out! Is there a place in Toronto downtown where I could take the machine for repair and do you have any idea how they will charge me?

By DAL