My experience with Austin Chambers has been positive through and through and wouldn't hesitate to recommend them.
The team have operated in this part of North London for a long time and give plenty of good local insight. They give you the service you hope to get with a local business and, maybe most importantly, you can trust them. I also used many of their recommended partners for electrical test certificates, cleaning and removals - all of whom extend the same levels of service and satisfaction.
My experience is largely on the lettings side and Ali was patient and thorough with the many many questions and queries I had! Ali is super responsive over email, regardless of business hours, and always willing to take a follow up call. The reviews from others that talk of them being hard to get hold of simply doesn't match my experience at all and can't see where that is coming from. With regard to charges - Austin Chambers are competitive and charges are either comparable or cheaper than others. Simply compare to the 'chain' agents and the difference will be clear as day.
As I said, my experience is largely with the lettings side but have met and spoken with those running the sales side. The experience here was similar in terms of knowledge and willingness to spend a little time to talk things over.
10 months ago