The entire keyboard on your Acer laptop is designed to be completely removed if it becomes damaged. But if only a single key becomes damaged you can remove and replace it yourself, without the need to take it to the repair shop. There is no disassembly of your computer involved and the process doesn't require any serious technical knowledge. You can save a lot of money by not having a professional perform this quick procedure for you.
Power off your Acer computer and unplug the power cable. Open the display so that you can access the keyboard.
Locate the damaged key on your Acer keyboard and insert the tip of your flat head screwdriver under the key. Pry up gently to pop the key off. The plastic key frame will still be in the key compartment.
Use the tip of your screwdriver to pop the plastic frame out of the compartment.
Fit the plastic frame in the bottom of the new key and press it in until it snaps securely in place.
Fit the new key in the compartment and press down until the key locks in place.