Try in Jerusalem. 02-999-5599. (Kehillat Tehilah recommends them.)
We used them when we bought our home in Modi'in and we took care of all business via phone, fax, mail and messenger. We didn't need to travel to Jerusalem for anything. We were living in Ra'anana at the time.
They speak English and are very easy to work with, and they really looked out for our interests.