How expensive is it to replace a torsion spring on a garage door?

Replacing a torsion spring on a garage door typically costs 200 to 400 dollars when done by a professional, including parts and labor. A single replacement spring costs 50 to 100 dollars, but most service calls replace both springs at once because they wear at the same rate. Standard residential springs run about 75 to 150 dollars per spring installed. Higher-cycle springs rated for 20,000 or 30,000 cycles cost 150 to 250 dollars each but last much longer. Service calls typically include a 75 to 150 dollar trip charge on top. Heavier doors, double doors, oversized 8-foot-tall doors, or commercial torsion springs push pricing into the 400 to 700 dollar range. DIY replacement can drop the cost to 50 to 100 dollars in parts.