请教:安装地下室天花板

The ceiling in the basement is falling. It is old type of sliding in tiles. Now they are old, the attached staples and gel are getting old. i would like to chage a new ceiling.

If change to drywall ceiling, how long it will take if i do myself? What material are good?

If hire some one to do it, how much it will cost?

 

Thanks.

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