Use silicone caulk for windows and door frames. Use expandable foam or steel wool for larger gaps around plumbing pipes.
Don't spray the ones you see. Use borate-based gel baits . The workers take the "food" back to the queen, killing the entire colony rather than just the scouts. DO IT YOURSELF PEST CONTROL
If they’re already inside, choose the right tool for the job: Use silicone caulk for windows and door frames
A dime-sized hole is a front door for a mouse, and a crack the width of a credit card is an entry for a cockroach. DO IT YOURSELF PEST CONTROL