Have them come out and assess your situation its usually free.
I have them in the yard also, as close as 10 feet to the house.
I keep them at bay with a foundation pesticide barrier and bait stakes.
Now that you know they are there you have to be vigilant.
If you are a do it yourself kind of guy....you can purchase the supplies from your Terminix supplier or other pest control agent.
Terminix® Nags Head, NC Pest Control | 1-855-484-8944
There is great detailed information on Youtube.