What kind of laptop is it? Dells used to be incredibly easy to service because underneath, there were symbols next to each and every screw indicating which ones you had to loosen in order to access the main components.
If you wanted to remove the keyboard and touchpad assemblies, for example, there were keyboard symbols.
The idea is to allow techs to replace mostly anything in a matter of minutes.
A MacBook, on the other hand, is more like Fort Knox. No point in trying unless you have years of experience, and even then it's time-consuming and problematic unless you have the right tools.
My bitch can be found in my conjunctivitis thread.