Things You'll Need
If multiple springs on your sofa are broken, it may be more cost effective to purchase a new sofa rather than repair or replace all of the springs. Contact a professional upholsterer for additional assistance.
If replacing a spring, take caution when using a knife to slice ties. Never point a staple gun at anyone. Do not leave tools unattended in the presence of small children.
Is your sofa sagging? Do you nearly sink to the ground when you sit down to relax? Don't worry, you're not alone! Many people experience the same problem. There's no need to call the manufacturer. More than likely it is not their fault. There is a weight limit on sofas containing springs, and there is also an advisory not to jump on them. If neither of these reasons explains why your sofa springs are worn out, it may simply be caused by extensive use. A good comparison of a sagging spring in a sofa is an elderly adult leg. As we age, the bounce tends to fade from our steps. We sit down fast and take a long time to get back up. The good news is, a worn-out sofa spring is much easier to repair than a worn-out human limb.
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Repairing the Springs
Remove fabric on bottom of sofa. Pull strongly to remove the staples that hold it in place. If you need to, use pliers to do this.
Check to see if springs are compressed or stretched out. They may be smashed down flat or may be leaning to the side. Compare worn-out springs to new springs in order to determine need of repair.
Attach pliers to the spring. Use them to pull and twist worn-out areas bringing it back to its original coiled form. If this process does not work, continue to Step 3.
Purchase a new spring. Identify the worn-out spring and remove it by cutting ties with a knife. You will need to use pliers to disconnect it from metal wires as well.
Replace the old spring with the new one. Tie the new spring into place using a strong piece of string.
Replace fabric on the underneath portion of the sofa. Use a staple gun to secure it into place.
Residing in Morgantown, W.Va., Heather Preston began writing professionally in 2010. Her work has been published on Web sites such as eHow and Travels.com. She holds a Bachelor of Science in design and advertising from West Virginia University and is currently attending Fairmont State University as a graduate student in the Master of Business Administration program.