If the bug man put out gel, it can take a week for the roaches to die off. If spray was used, the roaches scattered and some came back.

If you are in an apartment, they came from next door.

Roaches can crawl under baseboards and up pipes under the sinks from outside.

If they are the huge roaches, they come from outside and need moisture to live and do not live long inside.

We used to get roaches once in a while but we got an exterminator and it worked really well. But today I saw one in my kitchen and then I went into my living room and saw THREE more! All at the same time! I've never seen that before. Where could they be coming from?? I feel like they're everywhere. Please help!!