In my area, there used to be a electrical shop and the guy will also do wiring like fit new lighting and so on. But the shop already closed and his mobile dont work. I went all the shops that sell electrical stuff and they dont do the installation, they only sell the stuff. So now I need to find a new wiring guy. But I have no idea how or where to look. Any suggestions?

I need someone to check the mains. preventive maintenance