I had the same problem last year and did not want to call pest control because of young kids at home. I used the Heliose's recipe for roaches (google it) and it actually worked wonders. Also backed it up with Combat (used to be available in FFC and Carrefour) which I changed every few weeks. Oh yeah boric powder can be found at most pharmacies as u will need it to prepare the Heliose formula. Good Luck!
Have seen this subject before but no luck with searches.
I need to rid our apartment of roaches before the weather heats up and they multiply! Can anyone recommend a company in Doha that they think use safe practices. I have two small children at home with me everyday.
TIA