We had a very poor dealing experience with this company. We rented a flat from Frost in Jul/August 2012, my contact was Sally Hyland at the Amersham branch. Immediately Frost handed over a s21 notice seeking possession in 1 years time. Although I believe that this is legal, this is extremely bad practice. When I queried what this meant with Sally I was told that this was just standard procedure and not to worry about it. This document basically means that they don't need to give you ANY notice to leave the property, so if your landlord decides that he wants to offer his divorced mate your home to live in and give you next to no notice then they are completely within their rights to do so. Which is basically what happened to us. I think that they should be transparent in the way they do business so would warn you to avoid signing the s21 notice as I did unwittingly setting myself up for a huge amount of stress a few months down the line when we were asked to leave with less than 4 weeks notice not 6-8 weeks which would have been reasonable. Not easy to do when you are working full time! I would recommend that you look for another Estate Agency to do business with. Fees are also very expensive.