The cost of a power steering leak repair depends on the leak placement and the car. A filler cap replacement might be 5.00, while a leak causing a steering rack replacement could be 750.00 or more.
possibly a weld if leak is accessable and repair cheaper than replacement where leak occurred
No not always.
Gas tank leak repair at Canadian tire or replace it,replacement is the best choice if you're keeping the car.
Bad seal - needs replacement
I would think one that holds gasoline and doesn't leak would be a proper replacement.
Replace it with an oem replacement line.
The seals on your windows have a leak or in need of replacement.
Cost of a crank seal leak repair
Installed incorrectly, or cheap/faulty faucet
It depends on the location of the leak. Commonly the feed hoses from the reservoir to the power steering pump will leak, the fix is to just replace the clamps.
I had the same problem with my 1992 Accord. Replacement of the trunk lid gasket fixed the leak, but I had to special order the gasket from a dealer.