Is it possible to have 2 different internet providers in one house?

My family currently has xfinity WiFi, but everyone uses it and I want my own. I was thinking of getting AT&T fiber optic. Just curious if the installation guy came to my house would both of the WiFi’s interfere with one another making them slower????.....would It really be possible to have 2 modems and 2... show more My family currently has xfinity WiFi, but everyone uses it and I want my own. I was thinking of getting AT&T fiber optic. Just curious if the installation guy came to my house would both of the WiFi’s interfere with one another making them slower????.....would It really be possible to have 2 modems and 2 routers on seperate providers in the same household???

-thx
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