Any good sites on how to. I remember in college doing wax sculptures then plaster castings and we dipped them in silica or something like that?
If the building is fairly new, I would contact the builder and let him do it because this is not in compliance with building codes. The location of the detector is useless. Detectors are to be inside and outside of every bedroom, (hallways serve as a common area for multiple bedrooms), at least one on every floor without bedrooms. The general rule is about 5 feet outside the bedroom. Tops of stairs are also another good place since smoke rises. If the detector is hardwired moving it will be a problem. However it can be done. Hardwired means that it is connected to the wiring of the building and also connected to other detectors in the building.
Borrow a ladder that is freestanding and doesn't need a wall to lean on.
Stand on the shoulders of an eight-foot tall friend. Loosen up and buy the ladder, cheapskate.
Borrow one. Just out of curiosity, what good is a smoke detector at 16 feet?
I You do not know what you are doning do not do it.