The answer to 'how did tick get in my house' is that ticks can enter your home in a few common ways. Ticks may hitch a ride on pets, clothing, or even on you after being outdoors. They can also be brought in on firewood, plants, or other items from outside. Once inside, ticks will seek out warm, humid areas to hide and feed.
It's important to take steps to prevent ticks from getting into your home in the first place. This includes regularly checking pets for ticks, using tick prevention products, and being vigilant when coming in from outside. If you do find ticks in your home, you'll need to thoroughly clean and treat the affected areas to remove them.