Spraying around the foundation of the house will keep them from coming in there.
It's time for a pro. Call ASAP before u have a all out war!
Many pro companies give guarantee only hire them... Companies who don't are not dependable.
Use caulking or tape to seal up all the cracks in your walls and cracks between shelves and kitchen cabinets. Then spread boric acid powder on your shelves, in the cracks, under your refrigerator, in and under your stove, and anywhere else you've seen roaches. Don't clean up the powder; just leave it. This works much better than exterminators which only spray poisons that drive roaches back into wall spaces.
there is a saying that for every roach you see there are hundreds you dont see. you should call exterminator or place roach traps around your house, get the one where the roach can carry the poision back to the nest.
I've been living in my house for about 3 years and I haven't seen any cockroaches till now. I was sitting in my room upstairs and I saw a huge cockroach just scurry in my corner near my closet and I killed it. I'm just wondering if there are more or maybe a nest or something