Our dual estate gates with elite operators have recently been serviced by RS Erection of Concord. They've always arrived on schedule and we couldn't ask for more qualified technicians. Security gate systems like ours at times require more than one service call to perfect after a malfunction but in every instance over the past twelve years RS Erection has performed well. Most recently we were impressed with Johnny of RS Erection who quickly and efficiently diagnosed a limit switch and wiring issue affecting the timing of one gate. We use an Re-1 entry system and would wholeheartedly recommend them for gate services.