You won't even need an exterminator for this remedy!
Mix a tablespoon of boric acid powder with about half as much granulated white sugar. Fill a jar lid with the mixture and put it under your refrigerator WELL OUT OF REACH OF CHILDREN OR PETS.
IF you keep safety locks on your undersink cabinet doors, put another lid full back in the corner there. Because roaches like dark places, I put some of the mixture in an empty paper towel roller and pushed it between my freezer and a free standing cabinet where there was just enough space for it. I don't have toddlers or pets but there is no odor with this so you just have to keep it out of their reach. I change the mixture every six months and since I have been doing this for about two years, I have only seen three or four roaches and they were dying or dead.
Of course, you will have to keep the bottle of boric acid out of reach of children, too.
I could put this around outside doors where I suspect the bugs get in but we have lots of lizards and frogs and I don't want to hurt them. I take it personally if a roach invades my space and I have no mercy!
PS: For those who want an inexpensive outdoor pest control. Call me for Shaklee's Basic H2. I spray bushes around our house. It drowns the bugs and is good for the shrubs. Spary lawns and bugs in the grass will drown and others will stay away. Treatment of your entire lawn will result in greener grass with less watering because water will penetrate deeper into the soil resulting in a better root system, etc.
16 0z of Basic H2 is only $10.15 member price or $11.95 retail. It only takes one tablespoon of Basic H2 in an Ortho-type sprayer to make two gallonw of water. Basic H2 is an organic product, safe for human and pets for bathing. I can tell you more if you want to call me. It is great for babies with diaper rash, eczema, etc. I know it sounds like "snake oil" but it isn't!