Do you do repairs at your store?

I need to repair get my daughter’s LG gram 15 inch laptop looked at, but the one place I took it too didn’t even open it before saying, there’s nothing to be done with these types of laptops. The laptop works, but continues to glitch, then shuts off and restarts by itself (at least a few times a day). The blue screen of death appears once in awhile before restarting. When it restarts, sometimes, it’s frozen, or the safe mode options kick in. Any advice or recommendations are welcome.