How Long Does Hair System Installation Take? What to Expect in San Jose, CA If you’re thinking about getting a hair system, one of the first questions you may ask is: “How long does installation take?” That’s a great question—and the answer may surprise you. The process is easier, faster, and more comfortable than most people expect. Let’s break it down step by step in a simple way. The Short Answer Most hair system installations take 2 to 3 hours  from start to finish. This