Question: what to do if rats are in your house?
Answer: Fill holes, cracks and gaps. Rats can slip into holes the size of a quarter. ... 
Don't feed them. Rats are resourceful. ... 
Remove their habitat. ... 
Trim trees, shrubs and limbs back four feet from your home. ... 
Set traps inside. ... 
Use baits and poisons outside. ... 
Check your neighborhood. ... 
Call the pros.