Replace the circular staircase and the railings is a big big job to a regular guy like me. You and I don't know whether a contractor is good until you need warranty service and/or your have an issue with their work and want them just to listen. Yes, listen to you is a good starting point, I don't expect many of them will really help to have issues or installation problems resolved. VIP Railing is an EXCEPTION to my experience in dealing with about twenty contractors in the last two years. Due to a hot renovation market, there was a 2 months delay. However, VIP Railings listened to, and addressed my issues and demanding concerns. Their workers were great, and really worked patiently and carefully to deliver good quality work. All my visitors tell my that my railings is a master piece for a very very reasonable price.