I got mine installed by E Chan couple years back. Took them because of reasonable price, but there were some problems (came in the wrong color) and they had to redo it.

Mine is the magnetic mesh type. Starter to notice some bulging gap where the magnet strips are and also certain area magnets have lost their strength for some reason (I do not frequently dismantle them).

Overall though, ok for the price. For several windows, they installed terbalik but still usable so I didn’t make a fuss about it.

YMMV

Coz there’s like mini doors on the screen that u can open to access the window handles. The placement was correct, but the orientation is upside down so it opens different direction vs others. But Still can access the handle since the opening is big enough.

Sidetrack from but I did the same with my renovation contractor, and ended up screwing everything. Because many contractors only specialize in 1 or 2 things, so end up they sub out to the cheapest subcons who will bring problems. Maybe for ID and cabinetry it will be ok though.