Sputnik, agree with Luann. Better call town council/ pest control. My mum's place (where Jayden stayed over the weekdays) has this problem too. He gets bitten badly around, 6 to 8 bites per week, and very swollen. And, I already think that is very bad enough. Called town council and they did some fumigation. But it only helped for that few days, mozzies back again.
So my parents, in fear that Jay will get dengue, they put up mosquito nets at his playpen, and put lavender gel (glade brand) around the living room and the rooms. And this actually helped. So I am using it at my house too. In addition to the fumigation, you may want to try to use this lavender gel. It is available at all supermarkets.