An extension spring counterbalance system consists of a pair of stretched springs running parallel to the horizontal tracks. The springs lift the door through a system of pulleys and counterbalance cables running from the bottom corner brackets through the pulleys. When the door is raised, the springs contract, thus lifting the door as the tension is released. Typically these springs are made of 11 gauge galvanized steel, and the lengths of these springs are based on the height of the garage door in question. Their lifting weight capacity can best be identified by the color that is painted on the ends of the springs.
While it would be wonderful if door springs lasted forever, the reality is that the simple act of opening and shutting the door multiple times every day isn’t easy. It’s hard on the springs, even though they’re built to do it. Most springs will last for a while, but they won’t last forever. The regular wear and tear of endlessly opening and shutting the door breaks them down and eventually, they’ll need to be replaced.
how to garage door installation instructions
After setting up an appointment with us, Dan showed up promptly at the agreed upon appointment time and gave us options(pros &cons of replacing vs repairing of the garage door). We decided to replace the door. Dan listened to our concerns and budget limitations very professionally and patiently. This was a first experience with garage door replacement for us. Dan actually emailed us with the estimate to replace the door immediately, very impressive!