I replaced Spring using Garage Door Specilists. Their service is ok. But I had them come the 2nd time to adjust the Spring. The first time was too tight.
Speak to Michael at 770-442-8067. He did a fantastic job for my garage. I had used another fellow who tinkered with the door for several years and to no avail. Michale came and fixed it all.. He was a former pilot for eastern Airlines.