Unfortunately my friend, we have to deal with the simple fact that our kind aren't accepted into todays modern society, and because of that fact, many attempts to build a satanic monument have failed. I live in Brampton myself so I know for a fact that there are no Satanic churches, and there are very few of them around the world...regardless, I don't think there is a church in existence that represent 'SPIRITUAL' Satanism as it is...
But here's the beauty of it, we don't need a 'Church' in order to dedicate our lives to Satan...in fact, we don't need a 'Church' for anything really.
We Spiritual Satanists have the ability to do what we want, when we want ( Though sometimes time can be a factor because of planetary alignments ). We can do Rituals and Meditations and almost anything else you can think of in the security of our own homes and father accepts that.
So if you are serious about dedicating simply find a time that you can be left alone in your house without interruption and then go right ahead.