If your automatic garage-door mechanisms are damaged and cannot hold the door open at the mid-point without slipping, you may need to regulate or replace the cables and/or springs. Replacing garage door torsion springs is dangerous because the springs are under tension. If you do not use the right tools and follow safe procedures, you could be at risk. If you have any doubts about your ability to safely change your springs and cables, we recommend you contact The Garage Doctor for all your garage door needs. Doing the job right is our responsibility. Safety First!