File a complaint with the state against the electrician and the BBB and have your attorney send him a letter that it didn't pass and if he doesn't fix it to bring it up to code, you'll see him in court. Get his license number (for electrician). Should be on any information (paperwork) that has his name on it. Don't be nice just let him know you know what is to be done. Did he get permits to do this and not post on the room addition? Tell him you want to see them. The inspector may be able to check this information for you. Did you check references before hiring electrician and plumber? All this goes for the plumber too.