how to get rid of bees

Now this topic is different.Just notice bees trying to make there way into the house neer my evastrough and facer board any tips on trying to get rid of them befor we call in help.What I have tryed so far is useing a spray foam that i have sprayed into were they are going in .This stuff is an insectaside.Any tips would be helpfull.Right now i am bee off.
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