Garage door extension springs will only take a few hours. It never extends to days. In fact, it is always a matter of a few hours. It takes about 3 to 4 hours in installing extensions. This is significantly less time as compared to standard cable installation services. Our team of specialists has been given the best technological equipment needed for this service. This tends to speeds up the process. The installation, in some cases, depends on whether the cables are modern or traditional. In some cases, modern methods of installation take less amount of time as compared to more traditional ones.