I contacted Precision Overhead Garage Door after striking out with a competitor. My garage door was installed by an amateur, so it was recommended that the spring assembly, cable drums, and rollers be replaced. I was able to make an appointment very quickly for a weekend, which was nice. The work was done quickly and professionally, and the technician ("Z") answered all of my questions and then some. I actually learned a lot from him! The experience was wonderful overall. The price was a bit high, but I was okay with it as you get what you pay for.