I just noticed that tvfool.com is now Canadian friendly. You are now able to input your exact address, city, and province, or postal code for a nice reception chart.

been that way for some time, you should use the sat. map feature, it is even cooler then the normal address one and you might even be able to reposition directly in the right place in your lot (at least that is my case, depends on the detail available in Google maps). I find it is an excellent way to get the direction (by using landmarks) and you might be able to see pitfalls (tall stuff in the way) that could be avoided

also a note, it is as good as the CRTCs (?) database, so sometimes it might not be exact (i.e. channels that are there as live but not yet, antennas that are not where they should be.)

Pick a station, put in the call letters (no short names like tvo), and look at the patterns includes the impact of hills and escarpments.
Not sure how it work - something through Google Maps - but explains why somethings are unreceivable - for the most part.

Could not find out if there is a city location to input...
Put it in your favourites