DeerefAn
I use a product call BifenIT (bifenthrin) at my house and it works great. It is cheap ( I think I paid a pit $35 for 3/4 gallon). For outside, I mix it at 1 oz per gallons for water. You can buy it over the Internet. It will kill everything from spiders, ants, roaches. I spray it under my crawlspace and I have no roaches or spyders. I was having a problem this summer with black ants and I sprayed good under and around the house and I haven't seen an ant in the house since. Also, it has no smell.
You can spray it in the house at a reduced concentration but I have not found the need to do this as long as I spray under and around the house. I spray under the house in the spring .
If you buy Ortho home defense at lowes you will see that it is the same chemical ( bifenthrin) but at a smaller concentration .005% vs 7.9 % when you buy it over the Internet. If you try this I think you will like it. It saves me lots of money and the inconvenience of having to meet the pest control guy.
Randy