yeah, same sendiments about insects and roaches , mosquitoes, and LIZARDS.
When we moved to singapore 5 yrs ago, our main concern was to get rid of this friends of the neighbourhood.
First, we fumigated the apartment with gas & some chemicals.
Install "guard" - plastic or with bristle at the bottom of doors that lead to outside (e.g. main door).
Place ant baits in the kitchen floor,
spray lizard repellent on the front door.
Result:
1. after the clean up
2. we stayed in the condo for 4 yrs (top floor - 4th floor)
3. No ants, bugs, roaches (except for one during the first month)
4. No lizards in the house, just the one faithful lizard at the front door. We just have to make sure it does not get in.
5. NO mosquitoes.
Subsequently, we rented out the appartment as a service appartment to an asian expat that does alot of cooking. Found no mosquitoes or ants although there are always alot of food lying around (snack).
Last our last tenant was a Jap and he leaves leftover food or fruits in the bin and i noticed couple of ants crawling. Place ant bait and in two weeks there were no sign of any pest when we clean the premises.
Yes alot of pest in singapore houses, but it can be contained. it takes alot of effort to ensure the house is clean and free of food for at least 6 months and after that somehow the pest go somewhere else..
just my experience.