VOTED MOST HONEST GARAGE 16 YEARS IN A ROW! DUVAL'S Service Center 20 Park Ave., South Portland 799-7314 AAA Independent repair facility 2008-2010 Voted Best Auto Mechanic 16 Years in a row! Let's Keep the tradition going! VOTED MOST HONEST GARAGE 16 YEARS IN A ROW! DUVAL'S Service Center 20 Park Ave., South Portland 799-7314 AAA Independent repair facility 2008-2010 Voted Best Auto Mechanic 16 Years in a row! Let's Keep the tradition going!