You can find replacement cables for your garage door from several sources including home improvement stores, garage door dealers, and online retailers, but you must buy the correct length and type for your door system to ensure safe operation. Home improvement stores like Home Depot and Lowes carry standard garage door cables in the garage door parts aisle, typically offering 7 foot and 8 foot torsion and extension cables costing 15 to 40 dollars per pair, but selection may be limited to common residential sizes. Local garage door supply houses and professional dealers are a better source because they can measure your old cables and match the correct diameter, length, and end fittings for your specific door weight and height, and they often carry heavy-duty aircraft-grade cables. Online retailers such as Amazon, eBay, Garage Door Nation, DDM Garage Doors, and North Shore Commercial Door offer a wide variety of torsion cables with loop ends and extension cables with different lengths, usually 20 to 60 dollars per pair, with sizing charts based on door height and drum size. When buying, you need to know whether you have a torsion system where cables wrap around drums at the top, or an extension system where cables run along sides, and measure door height. Buying the wrong length causes improper winding and door imbalance. While cables are inexpensive DIY, professional installation is recommended for torsion systems because you must release spring tension safely, and professional replacement costs 150 to 300 dollars including labor.
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